From news on foreign media that influenced by Chinese market, Fused magnesia sand price in European market is also higher and higher now, while the price is more than 1500USD/T now.
The main reason is still because of lacking supply of refractory raw material. What was worse that there is no any evidence show that the price will be lower in nearly future.
Winter is coming, and environment pollution will be heavier. Chinese government will carry out more and more environment protection policy, while more and more plant need to close which result in higher and higher price of fused magnesia sand.
Most purchaser from all of the world calculate that fused magnesia sand price will be higher and higher in coming 2018.
What is more, some foreign purchaser indicate that magnesia sand quality is not as good as before. This is also because there is not enough mineral supplying, which result in poor quality than before.
So if you need refractory products, please purchase as soon as possible. Time is money for you.
Article source:
http://www.yilongrefractory.com/news/The%20trend%20of%20fused%20magnesia%20sand%20price.html
E-mail:sales8@chinaelong.com
2017年11月20日星期一
2017年10月23日星期一
Refractory for heating furnace
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| Refractory for heating furnace |
In addition to water-cooled cast iron out of the trough, the general use of high alumina brick or masonry masonry, the service life of 3 to 6 months. Sintered mullite or fused mullite large brick masonry, high strength, good wear resistance, but the thermal shock resistance is poor, easy to crack, its life around 1a. The use of heat-resistant steel fiber staggered corundum refractory castable in the field into the overall steel trough, the service life of more than 2a.
Ceramic chute with a small push-type refractory furnace, from the corundum a silicon carbide slide rails composed of ceramic slide. In the length of the furnace with a refractory brick masonry two or four rows of the wall. In the base wall masonry high alumina silicon carbide brick, and then install the sliding rail brick and composed of ceramic slide. Billet in the slide on the move to achieve the upper and lower sides of the heating, with less energy, billet without black and so on. Ceramic chute to withstand high temperature, billet load, high temperature wear and corrosion of iron oxide slag and other effects, the use of more demanding conditions, the life of about 1a. The bottom of the water cooling 'adiabatic refractory materials, large and medium-sized push silver or walking beam furnace, the bottom of the water cooling pipe is a vertical, horizontal distribution and support the role of thick-walled water cooling pipe composition. The purpose of adiabatic is to reduce the heat from the cooling medium, reduce the billet black print and improve the quality of heating.
The adiabatic way is divided into special-shaped clay brick mosaic or horseshoe-shaped brick hanging, refractory plastic or refractory castable made of welded tile prefabricated block welding or with the material and refractory fiber felt on-site dressing. Life is generally 3 to 12 months. When the use of high-quality refractory plastic, ultra-low cement or cement-free refractory castables for field dressing, the life of more than la. Flue and smoke for their own use refractory lase lining generally with dry clay masonry, can also be used refractory castable prefabricated block hanging or on-site watering, and sometimes can be used refractory spray coating construction. Red brick or concrete chimney in high temperature area with refractory masonry. Metal chimney wall welding metal anchor nails, sometimes with metal mesh, the use of lightweight refractory castable or refractory spray for lining, construction convenience, integrity, long service life. (Refresable for rehea-ting fumace) Refractory materials used in masonry furnaces and related parts. The furnace is used for rolling or forging steel. Heating billet or small steel ingot thermal equipment, the use of the temperature is generally 13 of a 1 40. ℃.
This type of furnace is generally made of refractory clay brick masonry, heating section and soaking section roof is also useful 3-high aluminum brick 'lining damage is mainly due to high temperature, thermal stress, air erosion and mechanical collision caused by the role of high temperature The lower part of the furnace wall, the bottom of the furnace and the water-cooled tube packing layer and other parts are also affected by the erosion of molten iron oxide slag, therefore, masonry or mattress magnets for the protective layer, water pipe dressing layer with high alumina refractory. With the large-scale rolling mill and high efficiency, the heating protection made a higher demand, its development trend is large, low consumption, pollution-free and operational automation, building materials and therefore open and lift two The The door is generally made of clay brick, refractory castable or refractory plastic, high aluminum insulation brick or refractory fiber mats and other materials for lining.
Side open the door can use a furnace service, lift door due to temperature fluctuations and mechanical impact and other factors, the service life of about la. Out of the riveting with refractory material with the side of the billet heating furnace. In addition to water-cooled cast iron out of the trough, the general use of high alumina brick or masonry masonry, the service life of 3 to 6 months. The use of sintered or fused mullite large brick masonry, high strength, good wear resistance, but the thermal shock resistance is poor, easy to crack, its life around 1a. The use of heat-resistant steel fiber staggered corundum refractory castable in the field into the overall steel trough, the service life of more than 2a. Ceramic chute with a small push-type refractory furnace, from the corundum a silicon carbide slide rails composed of ceramic slide. In the length of the furnace with a refractory brick masonry two or four rows of the wall.
In the base wall masonry high alumina silicon carbide brick, and then install the sliding rail brick and composed of ceramic slide. Billet in the slide on the move to achieve the upper and lower sides of the heating, with less energy, billet without black and so on. Ceramic chute to withstand high temperature, billet load, high temperature wear and corrosion of iron oxide slag and other effects, the use of more demanding conditions, the life of about 1a. The bottom of the water cooling 'adiabatic refractory materials, large and medium-sized push silver or walking beam furnace, the bottom of the water cooling pipe is a vertical, horizontal distribution and support the role of thick-walled water cooling pipe composition. The purpose of adiabatic is to reduce the heat from the cooling medium, reduce the billet black print and improve the quality of heating. The adiabatic way is divided into special-shaped clay brick mosaic or horseshoe-shaped brick hanging, refractory plastic or refractory castable made of welded tile prefabricated block welding or with the material and refractory fiber felt on-site dressing. Life is generally 3 to 12 months. When the use of high-quality refractory plastic, ultra-low cement or cement-free refractory castables for field dressing, the life of more than la.
Flue and smoke for their own use refractory lase lining generally with dry clay masonry, can also be used refractory castable prefabricated block hanging or on-site watering, and sometimes can be used refractory spray coating construction. Red brick or concrete chimney in high temperature area with refractory masonry. Metal chimney wall welding metal anchor nails, sometimes with metal mesh, the use of lightweight refractory castable or refractory spray for lining, construction convenience, integrity, long service life. Refractory material for refineries for rehea-ting fumace The refractory used in masonry furnaces and related parts The heating furnace is a thermal equipment used to heat billets or small billets when rolled or forged steel. Generally for a 13 of 13. ℃. This type of furnace is generally made of refractory clay brick masonry, heating section and soaking section roof is also useful 3 high aluminum refractory bricks' lining damage is mainly due to high temperature, thermal stress, air erosion and mechanical impact caused by such a high temperature The lower part of the furnace wall, the bottom of the furnace and the water-cooled tube packing layer and other parts are also affected by the erosion of molten iron oxide slag, therefore, masonry or paving magnesia for the protective layer, water pipe dressing layer with high alumina refractory.
More refractory material:
http://www.yilongrefractory.com/AllProductServlet?id=1&number=20
E-mail：sales8@chinaelong.com
2017年10月16日星期一
The use of silicon carbide
Silicon carbide Use Subdivision:
1, non-ferrous metal smelting industry applications
The use of silicon carbide with high resistance, high strength, good thermal conductivity, impact resistance, for high indirect heating materials, such as cans distillation furnace, distillation furnace tray, aluminum cell, copper melting furnace refractory lining material, zinc powder furnace arc Type plate, thermocouple protection tube.
2, the application of the steel industry
The use of silicon carbide corrosion resistance, thermal shock resistance to wear, good thermal conductivity characteristics for large blast furnace lining to improve the service life.
3, metallurgical and mineral processing industry applications
Silicon carbide hardness second only to the diamond, with a strong wear resistance, wear-resistant pipe, impeller, pump room, cyclone, ore lining the ideal material, the wear resistance is cast iron, rubber life of 5 -20 times, is also one of the ideal materials for aviation flight runway.
4, building materials ceramics, grinding wheel industry applications
The use of its thermal conductivity, heat radiation, high heat intensity of the characteristics of the manufacture of thin plate kiln, not only can reduce the kiln capacity, but also improve the furnace capacity and product quality, shorten the production cycle, is ceramic glazed baking sintering Ideal indirect material.
5, energy-saving applications
Silicon carbide brick is a typical polycrystalline compounds, according to the major categories, there are two kinds of α-silicon carbide and β-silicon carbide. α-silicon carbide as abrasive black and green varieties. β-SiC is the main refractory raw material for the preparation of silicon carbide ceramics. Silicon carbide is widely used, such as: metallurgy, machinery, chemicals, building materials, light industry, electronics, heating body. Abrasive can be used as a cleaning agent for the metallurgical industry, deoxidizer and modifier. In the mechanical processing can be used as synthetic carbide cutting tools; after processing silicon carbide plate can be used as a refractory material for ceramic firing plate. Through the production of fine powder after finishing, can be used for high-tech electronic components and far infrared radiation materials, paint. High purity fine powder for national defense industry aerospace vessel coating. The use of international and domestic economic fields is very broad.
Silicon carbide semiconductors can cope with the "extreme environment", allegedly silicon carbide chips can even withstand Venus or the heat near the sun. Previous studies have shown that silicon carbide wafers can operate normally without a cooling device even at high temperatures of 560 degrees Celsius. Silicon carbide chips in the field of communication has a broad application prospects, allowing high-definition TV transmitter to provide clearer signals and images; can also be used in jet and car engines to monitor the motor running. At the same time, it can also be used in the field of space exploration, to help nuclear power spacecraft to perform more complex tasks. French physicists have predicted that in the field of chip manufacturing, silicon carbide is not far from silicon.
1, abrasive - mainly because of silicon carbide has a high hardness, chemical stability and a certain toughness, so silicon carbide can be used to make synthetic abrasive, coated abrasive and free grinding, and thus to process glass, ceramics, Cast iron and some non-ferrous metals, carbide, titanium, high-speed steel cutting tools and grinding wheel.
2, refractory materials and corrosion-resistant materials --- mainly because of silicon carbide has a high melting point (decomposition), chemical inert and heat shock resistance, so silicon carbide can be used for abrasive, ceramic products firing furnace with shed And sagger, zinc smelting industrial vertical cylinder distillation furnace with silicon carbide brick, aluminum electrolytic cell lining, crucible, small pieces of furnace and other silicon carbide ceramic products.
3, chemical use - because the silicon carbide can be dissolved in molten steel and molten steel from oxygen, metal oxide reaction to produce carbon monoxide and silicon slag. So it can be used as smelting steel purification agent, that is used as steel deoxidizer and cast iron tissue improver. This generally uses low purity silicon carbide to reduce costs. But also as a raw material for the manufacture of silicon tetrachloride.
4, electrical use - for heating elements, non-linear resistive components and high semiconductor materials. Heating elements such as silicon carbon rod (for 1100 ~ 1500 ℃ work a variety of electric furnace), non-linear resistance components, all kinds of lightning protection valve.
5, the other prepared into far infrared radiation coating or made of silicon carbide silicon plate with far infrared radiation dryer.
1, non-ferrous metal smelting industry applications
The use of silicon carbide with high resistance, high strength, good thermal conductivity, impact resistance, for high indirect heating materials, such as cans distillation furnace, distillation furnace tray, aluminum cell, copper melting furnace refractory lining material, zinc powder furnace arc Type plate, thermocouple protection tube.
2, the application of the steel industry
The use of silicon carbide corrosion resistance, thermal shock resistance to wear, good thermal conductivity characteristics for large blast furnace lining to improve the service life.
3, metallurgical and mineral processing industry applications
Silicon carbide hardness second only to the diamond, with a strong wear resistance, wear-resistant pipe, impeller, pump room, cyclone, ore lining the ideal material, the wear resistance is cast iron, rubber life of 5 -20 times, is also one of the ideal materials for aviation flight runway.
4, building materials ceramics, grinding wheel industry applications
The use of its thermal conductivity, heat radiation, high heat intensity of the characteristics of the manufacture of thin plate kiln, not only can reduce the kiln capacity, but also improve the furnace capacity and product quality, shorten the production cycle, is ceramic glazed baking sintering Ideal indirect material.
5, energy-saving applications
Silicon carbide brick is a typical polycrystalline compounds, according to the major categories, there are two kinds of α-silicon carbide and β-silicon carbide. α-silicon carbide as abrasive black and green varieties. β-SiC is the main refractory raw material for the preparation of silicon carbide ceramics. Silicon carbide is widely used, such as: metallurgy, machinery, chemicals, building materials, light industry, electronics, heating body. Abrasive can be used as a cleaning agent for the metallurgical industry, deoxidizer and modifier. In the mechanical processing can be used as synthetic carbide cutting tools; after processing silicon carbide plate can be used as a refractory material for ceramic firing plate. Through the production of fine powder after finishing, can be used for high-tech electronic components and far infrared radiation materials, paint. High purity fine powder for national defense industry aerospace vessel coating. The use of international and domestic economic fields is very broad.
Silicon carbide semiconductors can cope with the "extreme environment", allegedly silicon carbide chips can even withstand Venus or the heat near the sun. Previous studies have shown that silicon carbide wafers can operate normally without a cooling device even at high temperatures of 560 degrees Celsius. Silicon carbide chips in the field of communication has a broad application prospects, allowing high-definition TV transmitter to provide clearer signals and images; can also be used in jet and car engines to monitor the motor running. At the same time, it can also be used in the field of space exploration, to help nuclear power spacecraft to perform more complex tasks. French physicists have predicted that in the field of chip manufacturing, silicon carbide is not far from silicon.
1, abrasive - mainly because of silicon carbide has a high hardness, chemical stability and a certain toughness, so silicon carbide can be used to make synthetic abrasive, coated abrasive and free grinding, and thus to process glass, ceramics, Cast iron and some non-ferrous metals, carbide, titanium, high-speed steel cutting tools and grinding wheel.
2, refractory materials and corrosion-resistant materials --- mainly because of silicon carbide has a high melting point (decomposition), chemical inert and heat shock resistance, so silicon carbide can be used for abrasive, ceramic products firing furnace with shed And sagger, zinc smelting industrial vertical cylinder distillation furnace with silicon carbide brick, aluminum electrolytic cell lining, crucible, small pieces of furnace and other silicon carbide ceramic products.
3, chemical use - because the silicon carbide can be dissolved in molten steel and molten steel from oxygen, metal oxide reaction to produce carbon monoxide and silicon slag. So it can be used as smelting steel purification agent, that is used as steel deoxidizer and cast iron tissue improver. This generally uses low purity silicon carbide to reduce costs. But also as a raw material for the manufacture of silicon tetrachloride.
4, electrical use - for heating elements, non-linear resistive components and high semiconductor materials. Heating elements such as silicon carbon rod (for 1100 ~ 1500 ℃ work a variety of electric furnace), non-linear resistance components, all kinds of lightning protection valve.
5, the other prepared into far infrared radiation coating or made of silicon carbide silicon plate with far infrared radiation dryer.
2017年9月25日星期一
The hot repair process of EAF taphole
1.Choose the right timing. The first repair should be after 60-70 heats or when tapping time is no more than 2 minutes and 10 seconds, then repair after each 30-40 heats.
2.Incline the EAF after tapping, properly place the gunning sleeve in the taphole through sand filling hole.
3.Mount pallet on EBT handcart.
4.Mount nut cap on gunning sleeve.
5.Get the gunning mix ready on EBT platform.
6.Put the gunning head into sand filling hole to spry the gunning refractory material into the gap between gunning sleeve and taphole refractory bricks.
7.Close the gunning machine and pull out gunning head when the gunning material is in the same level with bottom material.
8.Dismount nut cap and pallet.
Article source:
The hot repair process of EAF taphole
E-mail:sales8@chinaelong.com
2.Incline the EAF after tapping, properly place the gunning sleeve in the taphole through sand filling hole.
3.Mount pallet on EBT handcart.
4.Mount nut cap on gunning sleeve.
5.Get the gunning mix ready on EBT platform.
6.Put the gunning head into sand filling hole to spry the gunning refractory material into the gap between gunning sleeve and taphole refractory bricks.
7.Close the gunning machine and pull out gunning head when the gunning material is in the same level with bottom material.
8.Dismount nut cap and pallet.
Article source:
The hot repair process of EAF taphole
E-mail:sales8@chinaelong.com
2017年9月18日星期一
Brief introduction of Changxing Refractory slide gate plate and nozzle
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| ladle nozzle |
Ladle applied nozzle and slide gate
We have 1000 ton press machine for pressing ladle slide gate and nozzle, which can make sure high strength for your products.
There are many different series in our plant, such as LS, LG and so on, which have top level in the world.
Our production is 25,000 pcs for refractory material ladle nozzle per month, and 30,000 pcs for nozzle, which get same performance with Vesuvius and Kurosaki , and with much cheaper price.
Our customers mainly distributed in Turkey, Germany, Russia, Ukrain and South-east Asia.
Tundish applied nozzle:
There are also many refractory brick different kinds tundish nozzle, no matter lower, middle and higher level. We have both 24 hours and 1-2 hours nozzle.
We not only provide products but also after service. So please tell me your requirements and we will do the rest.
Article source:
Brief introduction of Changxing Refractory slide gate plate and nozzle
E-mail: sales8@chinaelong.com
Changxing Refractory opens the refractory market in Germany
After the past sevaral weeks negotiation and solution optimization, both sides Changxing Refractory and German client are very satisfied with the final cooperative agreements. Based on the win-win cooperation, the first order had been placed and will be finished in the next several days.
It is a good beginning for Changxing Refractory to get foot in Germany with high quality and competitive price refractories. Changxing Refractory will always provide clients with excellent pre-sale and after-sale service and high quality refractory products.
Article source:
Changxing Refractory opens the refractory market in Germany
E-mail:sales8@chinaelong.com
It is a good beginning for Changxing Refractory to get foot in Germany with high quality and competitive price refractories. Changxing Refractory will always provide clients with excellent pre-sale and after-sale service and high quality refractory products.
Article source:
Changxing Refractory opens the refractory market in Germany
E-mail:sales8@chinaelong.com
2017年9月1日星期五
Ladle Nozzle Well Block
Ladle Nozzle Well Block
Introduction
The ladle nozzle well block connects the wearing refractory lining of the ladle bottom to the mechanism or ladle gate for the flow control. To the well block is asked a huge wearing resistance and moreover it has to protect the nozzle placed inside it. Our ladle nozzle well block is made with magnesia carbon material or alumina carbon material, which can be made according to customized.
The ladle nozzle well block can be realized in any size and shape and strengthened with steel fibers to improve its mechanical resistance.
The series of well blocks for nozzles are made from high-purity, high-density, high-strength materials. Based on different materials, they have corundum, magnesia carbon and alumina spinel carbon.
Advantages
They show the features of stable structure, excellent thermal shock resistance, good corrosion/erosion resistance and long service life.
Application
It is mainly used to fix upper nozzle in steelmaking.
http://www.yilongrefractory.com/AllProductOneServlet?id1=1&id=6
 |
| Ladle Nozzle Well Block |
The ladle nozzle well block connects the wearing refractory lining of the ladle bottom to the mechanism or ladle gate for the flow control. To the well block is asked a huge wearing resistance and moreover it has to protect the nozzle placed inside it. Our ladle nozzle well block is made with magnesia carbon material or alumina carbon material, which can be made according to customized.
The ladle nozzle well block can be realized in any size and shape and strengthened with steel fibers to improve its mechanical resistance.
The series of well blocks for nozzles are made from high-purity, high-density, high-strength materials. Based on different materials, they have corundum, magnesia carbon and alumina spinel carbon.
Advantages
They show the features of stable structure, excellent thermal shock resistance, good corrosion/erosion resistance and long service life.
Application
It is mainly used to fix upper nozzle in steelmaking.
http://www.yilongrefractory.com/AllProductOneServlet?id1=1&id=6
Low Carbon Brick and Carbon-free Brick
Low Carbon Brick and Carbon-free Brick
Introduction
Low carbon magnesia carbon brick using with crystal magnesite, fused corundum, fused spinel, high purity and ultrafine graphite and nano composite antioxidant as raw materials, which are used for ladle slag line. Low carbon and carbon-free corundum spinel bricks are used for ladle lining and bottom. It can realize ladle low carbon and carbon-free to meet the needs of high grade and ultra-clean steel. The products are characterized by corrosion resistance, penetration resistance, erosion resistance, spalling resistance and good integrity, to meet the need of complete refining ladle. It is the leading level in the domestic.
Advantages
In order to solve the problems of thermal transmission of the ladle and carbon raising in molten steel, low carbon brick and carbon-free brick have been developed and are beneficial for improving steel quality.
Application
Low Carbon Brick and Carbon-Free Brick are applied to refining ladle for making mild steel, super low carbon steel and stainless steel.
http://www.yilongrefractory.com/AllProductOneServlet?id1=1&id=5
 |
| Low Carbon Brick and Carbon-free Brick |
Low carbon magnesia carbon brick using with crystal magnesite, fused corundum, fused spinel, high purity and ultrafine graphite and nano composite antioxidant as raw materials, which are used for ladle slag line. Low carbon and carbon-free corundum spinel bricks are used for ladle lining and bottom. It can realize ladle low carbon and carbon-free to meet the needs of high grade and ultra-clean steel. The products are characterized by corrosion resistance, penetration resistance, erosion resistance, spalling resistance and good integrity, to meet the need of complete refining ladle. It is the leading level in the domestic.
Advantages
In order to solve the problems of thermal transmission of the ladle and carbon raising in molten steel, low carbon brick and carbon-free brick have been developed and are beneficial for improving steel quality.
Application
Low Carbon Brick and Carbon-Free Brick are applied to refining ladle for making mild steel, super low carbon steel and stainless steel.
http://www.yilongrefractory.com/AllProductOneServlet?id1=1&id=5
Magnesia Alumina Carbon Brick, Alumina Magnesia Carbon Brick
Magnesia Alumina Carbon Brick, Alumina Magnesia Carbon Brick
Introduction
Changxing Refractory's Alumina Magnesia Carbon Brick is made from high quality bauxite, corundum and fused magnesia. The Alumina Magnesia Carbon Brick is formulated with very high purity alumina and magnesia, it is mainly used for ladle side wall and bottom. Alumina magnesia Carbon Brick holds better anti-strip advantages than magnesia carbon brick in ladle. Changxing Refractory will design different brand Alumina Magnesia Carbon Bricks according to your ladle type and molten steel type, and providing optimal performance at the lowest possible cost.
Alumina Magnesia Carbon Bricks is made from high quality bauxite, corundum and fused magnesia. It is formulated with very high purity alumina and magnesia.
Advantages
It has low thermal conductivity, good isolation ability, and appropriate residual expansion
Application
Alumina Magnesia Carbon Bricks are used in Ladle Sidewall and Bottom impact areas.
http://www.yilongrefractory.com/AllProductOneServlet?id1=1&id=4
 |
| Magnesia Alumina Carbon Brick, Alumina Magnesia Carbon Brick |
Changxing Refractory's Alumina Magnesia Carbon Brick is made from high quality bauxite, corundum and fused magnesia. The Alumina Magnesia Carbon Brick is formulated with very high purity alumina and magnesia, it is mainly used for ladle side wall and bottom. Alumina magnesia Carbon Brick holds better anti-strip advantages than magnesia carbon brick in ladle. Changxing Refractory will design different brand Alumina Magnesia Carbon Bricks according to your ladle type and molten steel type, and providing optimal performance at the lowest possible cost.
Alumina Magnesia Carbon Bricks is made from high quality bauxite, corundum and fused magnesia. It is formulated with very high purity alumina and magnesia.
Advantages
It has low thermal conductivity, good isolation ability, and appropriate residual expansion
Application
Alumina Magnesia Carbon Bricks are used in Ladle Sidewall and Bottom impact areas.
http://www.yilongrefractory.com/AllProductOneServlet?id1=1&id=4
2017年8月28日星期一
Continuous use of functional refractories
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| refractory material |
Sliding with a skateboard, mainly the use of aluminum carbon, and later, due to improved materials, the use of improved conditions, greatly improved the number of durable. Material, due to the addition of zirconia, peeling resistance greatly improved. According to the experimental and stress calculation, the shape of the skateboard is improved, which suppresses the generation and expansion of the crack. Due to the miniaturization of the skateboard and the re-use of the rear skateboard, the consumption of the refractory brick is reduced, so that the iron making is propelled. On the other hand, the development of high-corrosive steel slabs such as Ca-treated steel and high-carbon steels has been developed. For example, an aluminum-magnesium carbon alkaline skateboard having both corrosion resistance and peeling resistance has been developed.
Long water nozzle is the most recent 10 years to improve the maximum refractory products, recently, long water mouth life can reach 30 furnace or 40 furnace is not surprising. Preheating, insulation and residue cleaning and other aspects of the use of improvements, for the extension of life has a significant effect. Material, the measures taken to strengthen the strength of the bowl material, to suppress the wear of the inner tube, to prevent external oxidation and to prevent peeling.
Submerged entry nozzle, its characteristics and the flow pattern within the mold and the relationship between the quality of slab larger, it is generally from the material and shape of the two aspects of development and improvement. Material development is representative of the nozzle inside the alumina difficult to attach the development of materials. Generally use ZrO2-CaO-C material, the recent widespread use of carbon-free lining. Shape of the development, there are ladder-type immersion nozzle, this nozzle can effectively prevent the bias current, reduce the nozzle inside the alumina adhesion. In addition, a scheme for the use of a swirling flow nozzle and a vortex flow nozzle with spherical protrusions is proposed, and a furnace test is underway.
More refractory material:
http://www.yilongrefractory.com/AllProductServlet?id=1&number=20
E-mail：sales8@chinaelong.com
2017年5月17日星期三
Steel Flow Initiator---refractory castable---Changxing Refractory
Steel Flow Initiator
Introduction:
Steel flow initiator is a kind of ladle slid nozzle filler which is successfully developed by our company in recent years, results show that ladle castables success rate of automatic start casting can reach above 95 percent. There is no metallic inclusion in ingot surface, is a kind of ideal ladle slide nozzle filler. Steel flow initiator contains metal mixture whose weight is heavier and melting point is lower than molten steel. Before pouring we put it into upper nozzle, using it to burning and causing the molten steel within the upper nozzle will not be solidified, to achieve the purpose of automatic start casting and avoid the problem of ingot inclusions.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=2&id=27
E-mail：sales8@chinaelong.com
Introduction:
Steel flow initiator is a kind of ladle slid nozzle filler which is successfully developed by our company in recent years, results show that ladle castables success rate of automatic start casting can reach above 95 percent. There is no metallic inclusion in ingot surface, is a kind of ideal ladle slide nozzle filler. Steel flow initiator contains metal mixture whose weight is heavier and melting point is lower than molten steel. Before pouring we put it into upper nozzle, using it to burning and causing the molten steel within the upper nozzle will not be solidified, to achieve the purpose of automatic start casting and avoid the problem of ingot inclusions.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=2&id=27
E-mail：sales8@chinaelong.com
Ladle Gunning Mix---gunning mass---refractory castable
Ladle Gunning Mix
Introduction:
According to the gunning characteristics of gunning mixes and considering the destructibility of slag lines and easily worn parts of ladles, our company specially developed HT series of gunning mixes with the unique binding agent and additives.
Advantages:
1. Strong adhesion, 2. Low rebounding rate, 3. Easy-sintering, 4. Excellent erosion and corrosion resistance
Application:
they are ideal choices for cold/hot repair to slag lines and other parts of ladles.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=2&id=26
E-mail：sales8@chinaelong.com
Introduction:
According to the gunning characteristics of gunning mixes and considering the destructibility of slag lines and easily worn parts of ladles, our company specially developed HT series of gunning mixes with the unique binding agent and additives.
Advantages:
1. Strong adhesion, 2. Low rebounding rate, 3. Easy-sintering, 4. Excellent erosion and corrosion resistance
Application:
they are ideal choices for cold/hot repair to slag lines and other parts of ladles.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=2&id=26
E-mail：sales8@chinaelong.com
2017年4月13日星期四
Steel mills to reduce the consumption of iron and steel to consider
The reduction of steel consumption by steel mills can be considered in the following areas:
1.Reduce the proportion of molten iron, scrap, stable converter loading
From the practice, to explore the converter cold material in the best combination of chisel and scrap, adjust the molten iron, scrap material structure and furnace volume, in order to reduce material consumption.
2, high pull carbon blowing blowing operation process
Converter smelting the implementation of high-carbon carbon blowing operation process, blowing the end of the steel according to the specifications of some high-carbon, so that the converter end of carbon to reduce the slag TFe content, thereby improving the quality of molten steel, reducing the consumption of converter steel The
3, slag operation
Slag operation is a great economic benefits of the process, some slag can be recycled, high alkalinity of the slag to participate in smelting, reducing the amount of lime, while the residue in the TFe in the next furnace smelting when the recovery, reducing the steel Material consumption.
4, reduce the splash loss
1) the appropriate increase in furnace capacity, increase the effective volume of the furnace, in order to facilitate the reflection of the spatter.
2) to improve the slag process, in the second batch of slag before adding, through the advance slagging method, the peak of the foam slag forward, so that the peak time with decarburization staggered.
3) Temporarily increase the gun position before the peak of decarburization is reached, and then gently return to normal.
4) blowing the final use of pressure gun bit operation, to strengthen the pool stirring.
5, tapping temperature drop
Steel mills take measures:
1) to reduce the number of online ladle turnover, by improving the efficiency of ladle turnover, reduce the heat loss of ladle.
2) casting machine in the package plus insulation cover insulation and the use of long water, immersion nozzle protection measures to reduce the package process temperature drop.
3) ladle baking device regenerative transformation, improve the ladle baking temperature, reduce the ladle heat absorption.
4) converter iron mouth to expand, shorten the steel time, reduce the temperature drop process.
5) ladle outlet to expand, reducing the ladle to the package in the process of temperature drop.
6) converter, continuous casting transformation, shorten the smelting cycle, from 30min shortened to 26min, reduce the process temperature drop.
6, equipment aspects
Continuous casting application Mold liquid level automatic control, automatic water distribution, in the package continuous temperature measurement technology to transform the casting machine, can improve the finished product rate, reduce iron consumption.
If you want to know more about our product, please click:
http://www.yilongrefractory.com/AllProductServlet?id=1&number=20
1.Reduce the proportion of molten iron, scrap, stable converter loading
From the practice, to explore the converter cold material in the best combination of chisel and scrap, adjust the molten iron, scrap material structure and furnace volume, in order to reduce material consumption.
2, high pull carbon blowing blowing operation process
Converter smelting the implementation of high-carbon carbon blowing operation process, blowing the end of the steel according to the specifications of some high-carbon, so that the converter end of carbon to reduce the slag TFe content, thereby improving the quality of molten steel, reducing the consumption of converter steel The
3, slag operation
Slag operation is a great economic benefits of the process, some slag can be recycled, high alkalinity of the slag to participate in smelting, reducing the amount of lime, while the residue in the TFe in the next furnace smelting when the recovery, reducing the steel Material consumption.
4, reduce the splash loss
1) the appropriate increase in furnace capacity, increase the effective volume of the furnace, in order to facilitate the reflection of the spatter.
2) to improve the slag process, in the second batch of slag before adding, through the advance slagging method, the peak of the foam slag forward, so that the peak time with decarburization staggered.
3) Temporarily increase the gun position before the peak of decarburization is reached, and then gently return to normal.
4) blowing the final use of pressure gun bit operation, to strengthen the pool stirring.
5, tapping temperature drop
Steel mills take measures:
1) to reduce the number of online ladle turnover, by improving the efficiency of ladle turnover, reduce the heat loss of ladle.
2) casting machine in the package plus insulation cover insulation and the use of long water, immersion nozzle protection measures to reduce the package process temperature drop.
3) ladle baking device regenerative transformation, improve the ladle baking temperature, reduce the ladle heat absorption.
4) converter iron mouth to expand, shorten the steel time, reduce the temperature drop process.
5) ladle outlet to expand, reducing the ladle to the package in the process of temperature drop.
6) converter, continuous casting transformation, shorten the smelting cycle, from 30min shortened to 26min, reduce the process temperature drop.
6, equipment aspects
Continuous casting application Mold liquid level automatic control, automatic water distribution, in the package continuous temperature measurement technology to transform the casting machine, can improve the finished product rate, reduce iron consumption.
If you want to know more about our product, please click:
http://www.yilongrefractory.com/AllProductServlet?id=1&number=20
2017年4月5日星期三
Research on Burning Process of Refractory Brick
The components of the additive are compatible with the glass components and can react with the Cr2O3 at the same time to refractory brick promote the thermal defects in the interior and the surface of the Cr2O3 crystal and the Schottky thermal deformation in the heated state. , To accelerate the process of mass diffusion and surface diffusion of the material firebrick refractory during firing. Some of the components in the additive react with Cr2O3 to form a solid solution, which is crystallized from the melt and deposited at the grain boundaries of the Cr2O3 grains to form a ring crystal band to control the growth of the Cr2O3 grains and to strengthen the intergranular phase Combined to improve the strength of the product. Based on the above considerations, a number of additives were selected for the experimental study, where two representative additives were screened for comparison, one for additive A and the other for additive B.
Effect of Additives on Product Properties. At lower temperatures can significantly promote the Cr2O3 material sintering, refractory castable access to physical and chemical indicators to achieve or exceed the advanced products of similar products. In order to be able to fully crush Cr2O3 at lower temperatures, two techniques have been taken: (1) to improve Cr2O3 fineness as much as possible without affecting the yield of the product. (2) the introduction Refractory company of the ion radius and Cr3 + radius of the similar additives, so that in the appropriate (2) the introduction of the ion radius and Cr3 + radius of the additive, so that the greater the size of the grain, the greater the degree of distortion and radius of curvature of the grain, the higher the activity of the insulation products material, Oxygen partial pressure range sintering to form continuous solid solution and finite solid solution, destroying the ordered arrangement of Cr atoms, leading to the introduction of atomic potential around the change, resulting in Cr2O3 crystal periodic potential field distortion, accelerate the self-diffusion rate of chromium ions, Promote the sintering of Cr2O3 material.
Effect of Additives on Product Properties. At lower temperatures can significantly promote the Cr2O3 material sintering, refractory castable access to physical and chemical indicators to achieve or exceed the advanced products of similar products. In order to be able to fully crush Cr2O3 at lower temperatures, two techniques have been taken: (1) to improve Cr2O3 fineness as much as possible without affecting the yield of the product. (2) the introduction Refractory company of the ion radius and Cr3 + radius of the similar additives, so that in the appropriate (2) the introduction of the ion radius and Cr3 + radius of the additive, so that the greater the size of the grain, the greater the degree of distortion and radius of curvature of the grain, the higher the activity of the insulation products material, Oxygen partial pressure range sintering to form continuous solid solution and finite solid solution, destroying the ordered arrangement of Cr atoms, leading to the introduction of atomic potential around the change, resulting in Cr2O3 crystal periodic potential field distortion, accelerate the self-diffusion rate of chromium ions, Promote the sintering of Cr2O3 material.
2017年3月20日星期一
Filler for Well Block---Refractory Castable---Changxing Refractory
Filler for Well Block Introduction:
Filler for well block is produced with magnesia based materials and additive, is characterized by corrosion erosion resistance and easy installation etc. It has good filling effect for ladle well block.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=2&id=28
E-mail：sales8@chinaelong.com
Filler for well block is produced with magnesia based materials and additive, is characterized by corrosion erosion resistance and easy installation etc. It has good filling effect for ladle well block.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=2&id=28
E-mail：sales8@chinaelong.com
2017年3月14日星期二
Discussion on Anti - thermal Impact Anti - corrosion Instrument
Magnetic materials on the quality of the refractory material used by the high demand, so a long time, the domestic magnetic materials production plant refractories mainly rely on imports from Japan, Germany, the price is very expensive. In this experiment, high quality raw materials were used as aggregate. Through the test of the formula and the production technology, the heat resisting and anti-erosion performance was excellent, the strength was high, the effect was good and the service life was long.
Selection of raw materials Taking into Refractory company account the use of bearing seat harsh conditions, in addition to the selection of materials with high strength, good thermal shock stability, strong resistance to erosion and other characteristics, but also on the bearing seat deflection core pollution. After repeated comparison, the final choice of mullite) corundum to be developed for the ideal seat material.
Natural mullite is rare and generally synthetic. Because mullite has good high temperature mechanics and high temperature refractory brick for sale thermal performance, the synthesized mullite and its products have high density and purity, low thermal conductivity and thermal expansion coefficient, high temperature structure strength, high temperature creep rate is low, Thermal shock resistance and strong chemical resistance, the advantages of high melting point. Corundum good elasticity, high melting point, at high temperatures with good wear resistance, chemical resistance and volumetric stability, hardness, high refractoriness. In addition, the refractory materials for furnace mullite crystal is generally columnar or prismatic, corundum crystal is generally granular, mullite, corundum according to a certain proportion with the composition of mullite) corundum composite materials, mullite, corundum with the above excellent performance , And the burning of products without pollution, so mullite) corundum bearing seat can meet the requirements of the use of magnetic materials kiln 1.
Tested the development of refractory mullite-based crystal phase, in the design of the formula to make the material to produce more mullite phase, in addition, select a reasonable particle gradation is a very critical step.
The mechanical properties of the refractory lining mullite series have been studied, and the ratio of 75B25 and 25B75 with the best mechanical properties is proposed. It is pointed out that this is due to the fact that the crystal phases are intertwined with each other The Therefore, this test uses the synthesis of mullite and fumed corundum mass ratio of 3B1 as the green aggregate for the test, the use of four-stage pellet gradation, aggregate size and gradation in the first made a lot of experimental research, For comparison, the aggregate was selected as mullite or corundum. The results showed that the thermal shock resistance of the sample was the best when the mass ratio of mullite and corundum was 3B1. After several tests, several sets of more reasonable particle gradation were obtained.
Selection of additives and their additions This test uses A-Al2O3 powder, Suzhou soil, andalusite concentrate powder, zircon powder as an additive. Their role is as follows: Al2O3 micro-powder with the bearing seat in the free SiO2 reaction to form a second mullite, thereby enhancing the product life. This is because the ferrite within the Mn, Zn, Fe and so on will be volatile at high temperatures, easy with the bearing seat in the free SiO2 reaction, resulting in bearing seat corrosion and cracking, which seriously affected the product life, so The design of the formula must be considered to reduce the free SiO2 content to the extent of the reaction with the above substances. In addition, adding A-Al2O3 powder and Suzhou soil can improve the activity of matrix material, improve the forming performance of the green body and improve the sintering reaction ability of the product.
The experimental results show that the retention rate of residual strength increases with the addition of zirconite powder after thermal shock, and decreases more than 5%. The results show that ZrSiO4 has been decomposed and reacted with alumina to form ZrO2 aggregates and mullite, and the ZrO2 aggregates are evenly distributed in the matrix, To the stone network structure. In this way, the dispersion of ZrO2 is formed on the macroscopically, and a strengthened structure of ZrO2 coalescence is formed microscopically to improve the thermal shock resistance of the material.
Selection of raw materials Taking into Refractory company account the use of bearing seat harsh conditions, in addition to the selection of materials with high strength, good thermal shock stability, strong resistance to erosion and other characteristics, but also on the bearing seat deflection core pollution. After repeated comparison, the final choice of mullite) corundum to be developed for the ideal seat material.
Natural mullite is rare and generally synthetic. Because mullite has good high temperature mechanics and high temperature refractory brick for sale thermal performance, the synthesized mullite and its products have high density and purity, low thermal conductivity and thermal expansion coefficient, high temperature structure strength, high temperature creep rate is low, Thermal shock resistance and strong chemical resistance, the advantages of high melting point. Corundum good elasticity, high melting point, at high temperatures with good wear resistance, chemical resistance and volumetric stability, hardness, high refractoriness. In addition, the refractory materials for furnace mullite crystal is generally columnar or prismatic, corundum crystal is generally granular, mullite, corundum according to a certain proportion with the composition of mullite) corundum composite materials, mullite, corundum with the above excellent performance , And the burning of products without pollution, so mullite) corundum bearing seat can meet the requirements of the use of magnetic materials kiln 1.
Tested the development of refractory mullite-based crystal phase, in the design of the formula to make the material to produce more mullite phase, in addition, select a reasonable particle gradation is a very critical step.
The mechanical properties of the refractory lining mullite series have been studied, and the ratio of 75B25 and 25B75 with the best mechanical properties is proposed. It is pointed out that this is due to the fact that the crystal phases are intertwined with each other The Therefore, this test uses the synthesis of mullite and fumed corundum mass ratio of 3B1 as the green aggregate for the test, the use of four-stage pellet gradation, aggregate size and gradation in the first made a lot of experimental research, For comparison, the aggregate was selected as mullite or corundum. The results showed that the thermal shock resistance of the sample was the best when the mass ratio of mullite and corundum was 3B1. After several tests, several sets of more reasonable particle gradation were obtained.
Selection of additives and their additions This test uses A-Al2O3 powder, Suzhou soil, andalusite concentrate powder, zircon powder as an additive. Their role is as follows: Al2O3 micro-powder with the bearing seat in the free SiO2 reaction to form a second mullite, thereby enhancing the product life. This is because the ferrite within the Mn, Zn, Fe and so on will be volatile at high temperatures, easy with the bearing seat in the free SiO2 reaction, resulting in bearing seat corrosion and cracking, which seriously affected the product life, so The design of the formula must be considered to reduce the free SiO2 content to the extent of the reaction with the above substances. In addition, adding A-Al2O3 powder and Suzhou soil can improve the activity of matrix material, improve the forming performance of the green body and improve the sintering reaction ability of the product.
The experimental results show that the retention rate of residual strength increases with the addition of zirconite powder after thermal shock, and decreases more than 5%. The results show that ZrSiO4 has been decomposed and reacted with alumina to form ZrO2 aggregates and mullite, and the ZrO2 aggregates are evenly distributed in the matrix, To the stone network structure. In this way, the dispersion of ZrO2 is formed on the macroscopically, and a strengthened structure of ZrO2 coalescence is formed microscopically to improve the thermal shock resistance of the material.
2017年3月13日星期一
Test Measures for Damage to Refractory Products
Through the coloring, contrast and set the value, can find out a lot of performance, in particular, can easily determine the degree of wear, glass-refractory interface displacement or infiltration boundary position; with a quantitative value of visual inspection. The scanning method is intended to improve the accuracy of the evaluation of corroded specimens, rather than for microstructure studies. In fact, the magnification obtained with a flatbed A4 scanner is limited, which is related to the optical resolution of the device (typically 600 dpi to 120odpi). In accordance with the traditional test method, at the test temperature of the kiln, the finely ground aggressive material acts on the refractory materials for furnace. Use a cement to bond the hollow cylinder to a square bottom parallelepiped. Each of the citrus fills 15 grams of container glass. The less the material. In order to obtain accurate results, the residual glass surface was scanned with the new scanning technique described above without using the old time-consuming planar measurement technique. In addition, surface osmosis was measured.
2) image processing; 3) three-dimensional calibration, the pixel conversion into a dedicated length unit; 4) by contrast and threshold determination and other image processing on the selected area for surface measurement, and then on the Infiltration depth for statistical description. This can be done by making a series of measurements along the impregnation area. Using the standard deviation, the infiltration uniformity can be reliably evaluated, and the average value of the impregnation can be determined.
PRI products in all samples, the remaining glass spray paint surface area. In addition, the infiltration degree is limited to a small part of the wall thickness of citrus. The refractory material in the interface area in contact with the glass is free of erosion, even at the glass level, and the result may be low against the degree of impregnation. The sample was placed in an electric furnace, heated to 1400 ° C in 14 hours, then warmed at 1400 ° C for 24 hours, and then cooled to room temperature in an electric furnace. Choose to simulate the actual operation of the soaking temperature. When measuring, cut the sample in half so that the glass-Refractory company interface is cross-section tested. The cross-sectional area of ??the remaining glass was measured by a reliable quantification of the glass-resistant erosion resistance of the firebrick refractory sale.
The ladle package verifies the technical feasibility of the new alkaline spray filler (NB-GM) for slag line repair, especially the product. Further research is done to find the most suitable product / equipment. The first industrial test is carried out in the laboratory, the spray of MgO-C slag line, the performance is as follows: 110 ℃ after the weight loss B, product 5.5% bulk density porosity at room temperature compressive strength 2.69 / m319% 3lMPa it confirmed This material with ordinary alkaline spray products compared to excellent performance. RH-OB Ventilators Compared to conventional spray products, new materials can reduce the total amount of aluminum (external) and alkaline (internal) materials used for repair. The ongoing tests are mainly focused on the automatic installation of the spray, especially for practical applications. This has the same effect as the conventional material used previously. The first comprehensive test of these first tests was very useful, and they clearly confirmed the improved performance compared to conventional jetting. Two similar studies confirm the future trends of LC-GM (aluminum) and NB-GM (magnesia) materials. The new optimization equipment has the best masonry operation, that is, no dust and rebound, masonry rate of 5 a 6t / h. New products, especially aluminum spinel amorphous material is more suitable for ladle overall masonry.
2) image processing; 3) three-dimensional calibration, the pixel conversion into a dedicated length unit; 4) by contrast and threshold determination and other image processing on the selected area for surface measurement, and then on the Infiltration depth for statistical description. This can be done by making a series of measurements along the impregnation area. Using the standard deviation, the infiltration uniformity can be reliably evaluated, and the average value of the impregnation can be determined.
PRI products in all samples, the remaining glass spray paint surface area. In addition, the infiltration degree is limited to a small part of the wall thickness of citrus. The refractory material in the interface area in contact with the glass is free of erosion, even at the glass level, and the result may be low against the degree of impregnation. The sample was placed in an electric furnace, heated to 1400 ° C in 14 hours, then warmed at 1400 ° C for 24 hours, and then cooled to room temperature in an electric furnace. Choose to simulate the actual operation of the soaking temperature. When measuring, cut the sample in half so that the glass-Refractory company interface is cross-section tested. The cross-sectional area of ??the remaining glass was measured by a reliable quantification of the glass-resistant erosion resistance of the firebrick refractory sale.
The ladle package verifies the technical feasibility of the new alkaline spray filler (NB-GM) for slag line repair, especially the product. Further research is done to find the most suitable product / equipment. The first industrial test is carried out in the laboratory, the spray of MgO-C slag line, the performance is as follows: 110 ℃ after the weight loss B, product 5.5% bulk density porosity at room temperature compressive strength 2.69 / m319% 3lMPa it confirmed This material with ordinary alkaline spray products compared to excellent performance. RH-OB Ventilators Compared to conventional spray products, new materials can reduce the total amount of aluminum (external) and alkaline (internal) materials used for repair. The ongoing tests are mainly focused on the automatic installation of the spray, especially for practical applications. This has the same effect as the conventional material used previously. The first comprehensive test of these first tests was very useful, and they clearly confirmed the improved performance compared to conventional jetting. Two similar studies confirm the future trends of LC-GM (aluminum) and NB-GM (magnesia) materials. The new optimization equipment has the best masonry operation, that is, no dust and rebound, masonry rate of 5 a 6t / h. New products, especially aluminum spinel amorphous material is more suitable for ladle overall masonry.
2017年2月13日星期一
Ladle Castables---Refractory Castable---Refractory Material---Changxing Refractory
Ladle Castables
Introduction:
Based on low-cement castable and superfine powder technologies, our company developed the series of castables for ladles to meet the operation conditions of various ladles. The castables are made by setting up scientific optimization of ingredients and accurate distributing of grain size as well as adding of high-quality binding agents and high-efficiency external reactants.
Advantages:
1. Ladle castables show the features of high strength 2. Excellent thermal shock resistance 3. Corrosion resistance 4. High abrasion resistance and refractoriness 5. Stable volume
Application:
The products can be applied for ordinary ladles, refining ladles and ladles of EAF.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=2&id=24
E-mail：sales8@chinaelong.com
Based on low-cement castable and superfine powder technologies, our company developed the series of castables for ladles to meet the operation conditions of various ladles. The castables are made by setting up scientific optimization of ingredients and accurate distributing of grain size as well as adding of high-quality binding agents and high-efficiency external reactants.
Advantages:
1. Ladle castables show the features of high strength 2. Excellent thermal shock resistance 3. Corrosion resistance 4. High abrasion resistance and refractoriness 5. Stable volume
Application:
The products can be applied for ordinary ladles, refining ladles and ladles of EAF.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=2&id=24
E-mail：sales8@chinaelong.com
2017年2月10日星期五
Coil Grout---Refractory Castable---Refractory Material---Changxing Refractory
Coil Grout
Introduction and Advantages:
This coil grout is a grouting compound to coat coils in induction furnaces. Coil grout is required to be mixed with water and then applied by trowelling. Coil grout will provide a smooth surface to the slip plane medium, in order to allow uninhibited expansion and contraction of the working lining.
Application:
Coil grout is used as a grouting compound to coat coils in induction furnace.
Content source:
http://www.yilongrefractory.com/ProductServletOne?id1=2&id=23
E-mail：sales8@chinaelong.com
Introduction and Advantages:
This coil grout is a grouting compound to coat coils in induction furnaces. Coil grout is required to be mixed with water and then applied by trowelling. Coil grout will provide a smooth surface to the slip plane medium, in order to allow uninhibited expansion and contraction of the working lining.
Application:
Coil grout is used as a grouting compound to coat coils in induction furnace.
Content source:
http://www.yilongrefractory.com/ProductServletOne?id1=2&id=23
E-mail：sales8@chinaelong.com
2017年2月3日星期五
Medium Frequency Induction Furnace Drying Tamp Mass---Refractory Castable---Refractory Material---Changxing Refractory
Medium Frequency Induction Furnace Drying Tamp Mass
Introduction and Application：
Medium Frequency Induction Furnace Drying Tamp Mass is characterized by high corrosion and erosion resistance against molten steel and slag, dense sintered layer, long service life, low consumption of per ton steel, easy construction and repairing, and energy saving.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=2&id=22
E-mail：sales8@chinaelong.com
Introduction and Application：
Medium Frequency Induction Furnace Drying Tamp Mass is characterized by high corrosion and erosion resistance against molten steel and slag, dense sintered layer, long service life, low consumption of per ton steel, easy construction and repairing, and energy saving.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=2&id=22
E-mail：sales8@chinaelong.com
2017年1月23日星期一
Intermediate Frequency Induction Furnace Lining Material---Refractory Castable---Refractory Material---Changxing Refractory
Intermediate Frequency Induction Furnace Lining Material
Introduction:
This refractory product is silica ramming mass which can be also called acid ramming mix, and the furnace lining material is called mixed sand for short. This product is the main refractories of the medium frequency induction furnace used by small steel enterprises. Its effect is in leading position.
Advantages:
1. Changxing Refractory SILICA RAMMING MIX has excellent thermal stability.
2. The SILICA RAMMING MASS has a relative low density which leads to low level of heat losses.
3. The acid ramming mass also has strong resistance to chemical attacks.
Application:
The silica ramming mass is used as refractory lining material for Coreless Induction Furnaces for melting and holding iron or steel.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=2&id=21
E-mail：sales8@chinaelong.com
Introduction:
This refractory product is silica ramming mass which can be also called acid ramming mix, and the furnace lining material is called mixed sand for short. This product is the main refractories of the medium frequency induction furnace used by small steel enterprises. Its effect is in leading position.
Advantages:
1. Changxing Refractory SILICA RAMMING MIX has excellent thermal stability.
2. The SILICA RAMMING MASS has a relative low density which leads to low level of heat losses.
3. The acid ramming mass also has strong resistance to chemical attacks.
Application:
The silica ramming mass is used as refractory lining material for Coreless Induction Furnaces for melting and holding iron or steel.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=2&id=21
E-mail：sales8@chinaelong.com
Intermediate Frequency Induction Furnace Lining Material---Refractory Castable---Refractory Material---Changxing Refractory
Intermediate Frequency Induction Furnace Lining Material
Introduction:
This refractory product is silica ramming mass which can be also called acid ramming mix, and the furnace lining material is called mixed sand for short. This product is the main refractories of the medium frequency induction furnace used by small steel enterprises. Its effect is in leading position.
Advantages:
1. Changxing Refractory SILICA RAMMING MIX has excellent thermal stability.
2. The SILICA RAMMING MASS has a relative low density which leads to low level of heat losses.
3. The acid ramming mass also has strong resistance to chemical attacks.
Application:
The silica ramming mass is used as refractory lining material for Coreless Induction Furnaces for melting and holding iron or steel.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=2&id=21
E-mail：sales8@chinaelong.com
Introduction:
This refractory product is silica ramming mass which can be also called acid ramming mix, and the furnace lining material is called mixed sand for short. This product is the main refractories of the medium frequency induction furnace used by small steel enterprises. Its effect is in leading position.
Advantages:
1. Changxing Refractory SILICA RAMMING MIX has excellent thermal stability.
2. The SILICA RAMMING MASS has a relative low density which leads to low level of heat losses.
3. The acid ramming mass also has strong resistance to chemical attacks.
Application:
The silica ramming mass is used as refractory lining material for Coreless Induction Furnaces for melting and holding iron or steel.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=2&id=21
E-mail：sales8@chinaelong.com
2017年1月22日星期日
Electric Furnace Gunning Mix---Refractory Castable---Refractory Material---Changxing Refractory
Electric Furnace Gunning Mix
Introduction and Application:
Electric furnace gunning mix with magnesia based and magnesia-calcium based material, binder and sintering agent, is characterized by high bonding strength, strong corrosion resistance and non-spalling. When hot repairing temperature is higher than 1000℃, hot repairing effect is good and adhesion rate is higher than 85%.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=2&id=20
E-mail：sales8@chinaelong.com
Introduction and Application:
Electric furnace gunning mix with magnesia based and magnesia-calcium based material, binder and sintering agent, is characterized by high bonding strength, strong corrosion resistance and non-spalling. When hot repairing temperature is higher than 1000℃, hot repairing effect is good and adhesion rate is higher than 85%.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=2&id=20
E-mail：sales8@chinaelong.com
2017年1月19日星期四
Furnace Bottom Tapping Hole Fillers---Refractory Castable---Refractory Material---Changxing Refractory
Furnace Bottom Tapping Hole Fillers
Introduction and Application:
Furnace bottom tapping hole fillers are steel fillers used in steel tapping hole of large eccentric furnace bottom. This product developed by our company is adapted to the need of increasing gradually in large-scale furnace in recent years, an ideal product to replace imported products. The steel outflow from eccentric furnace, put electric fillers in at EBT platform, when the steel stuffing can outflow from steel pore while steel water flow into ladle. Automatic free-opening rate can reach over 90%.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=2&id=19
E-mail：sales8@chinaelong.com
Introduction and Application:
Furnace bottom tapping hole fillers are steel fillers used in steel tapping hole of large eccentric furnace bottom. This product developed by our company is adapted to the need of increasing gradually in large-scale furnace in recent years, an ideal product to replace imported products. The steel outflow from eccentric furnace, put electric fillers in at EBT platform, when the steel stuffing can outflow from steel pore while steel water flow into ladle. Automatic free-opening rate can reach over 90%.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=2&id=19
E-mail：sales8@chinaelong.com
2017年1月17日星期二
Furnace Drying Tamp Mass---Refractory Castable---Refractory Material---Changxing Refractory
Furnace Drying Tamp Mass
Introduction and Application:
Furnace drying tamp mass is prepared through selection of high grade synthetic raw materials, additive and binder. According to particle close packing theory. It is characterized by strong penetration resistance to molten steel, corrosion resistance, easy sintering, high packing density and easy installation. It is an ideal material for electric furnace bottom.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=2&id=18
E-mail：sales8@chinaelong.com
Introduction and Application:
Furnace drying tamp mass is prepared through selection of high grade synthetic raw materials, additive and binder. According to particle close packing theory. It is characterized by strong penetration resistance to molten steel, corrosion resistance, easy sintering, high packing density and easy installation. It is an ideal material for electric furnace bottom.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=2&id=18
E-mail：sales8@chinaelong.com
2017年1月12日星期四
Semi-graphitic Carbon Block---Refractory Brick---Refractory Material---Changxing Refractory
Semi-graphitic Carbon Block
Introduction and Application:
Semi-graphitic Carbon Block is mad of high temperature' electrical calcined anthracite as main a material, medium temperate pitch as binder, through forming, high temperature baking, final precision machining. It features good thermal conductivity and alkaline resistance. It is economic and practical, and mainly applied for blast furnace bottom.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=1&id=17
E-mail：sales8@chinaelong.com
Introduction and Application:
Semi-graphitic Carbon Block is mad of high temperature' electrical calcined anthracite as main a material, medium temperate pitch as binder, through forming, high temperature baking, final precision machining. It features good thermal conductivity and alkaline resistance. It is economic and practical, and mainly applied for blast furnace bottom.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=1&id=17
E-mail：sales8@chinaelong.com
2017年1月11日星期三
High Alumina EPS insulating Firebrick---Refractory Brick---Refractory Material---Changxing Refractory
High Alumina EPS insulating Firebrick
Introduction:
This series of products are sintered mainly with supper-fine bauxite chamotte, and proper additive by a method of EPS ignition loss, Their main advantages include high intensity, low thermal conductivity, excellent thermal stability, very small reheat linear change, outstands erosion and corrosion resistance etc.
Advantages:
1. High strength
2. Optimum performance
3. Dimensional stability
4. Low thermal conductivity
Application:
They are an ideal kind of energy-conserning products which can be widely used as lining or insulating layers of various industrial furnaces and kilns in metallurgical industry, machine building industry, ceramic industry, chemical industry, etc. Recommended service temperature: Less than 1400C.
Clients can avail from us a wide variety of Fire Bricks, which is widely demanded for their high strength. The offered bricks are manufactured using high-grade material and advanced techniques, thus complying with the international industry standards. Our array of bricks is extensively used as lining in fireplaces, fireboxes, furnaces and kilns.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=1&id=16
E-mail：sales8@chinaelong.com
Introduction:
This series of products are sintered mainly with supper-fine bauxite chamotte, and proper additive by a method of EPS ignition loss, Their main advantages include high intensity, low thermal conductivity, excellent thermal stability, very small reheat linear change, outstands erosion and corrosion resistance etc.
Advantages:
1. High strength
2. Optimum performance
3. Dimensional stability
4. Low thermal conductivity
Application:
They are an ideal kind of energy-conserning products which can be widely used as lining or insulating layers of various industrial furnaces and kilns in metallurgical industry, machine building industry, ceramic industry, chemical industry, etc. Recommended service temperature: Less than 1400C.
Clients can avail from us a wide variety of Fire Bricks, which is widely demanded for their high strength. The offered bricks are manufactured using high-grade material and advanced techniques, thus complying with the international industry standards. Our array of bricks is extensively used as lining in fireplaces, fireboxes, furnaces and kilns.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=1&id=16
E-mail：sales8@chinaelong.com
Characteristics of lightweight mullite bricks
Lightweight mullite brick Features:
1. Low thermal conductivity, low heat capacity.
2. High purity, impurity content less.
3. High temperature, direct contact with the flame.
4. High strength, and has excellent thermal shock resistance. Applicable to metallurgy, petrochemical, building materials, ceramics, machinery and other industries of various industrial furnace hot surface lining and backing. Heat treatment furnace, resistance furnace, tunnel kiln, roller kiln, bell kiln, glass tank kiln and so on. The Refractory company products are widely used in many industries, such as: cracking furnace, reformer, heating device, refining device, regenerating device, hot air furnace.
Features:
Higher refractoriness, up to 1790 ℃ or more. The softening start temperature of the load is 1600 to 1700 ° C. Room temperature compressive strength of 70 ~ 260MPa. Thermal shock resistance is good. There are sintered mullite bricks and fused Mullite Insulating Firebrick. Sintered mullite brick to bauxite clinker as the main raw material, adding a small amount of clay or bauxite as binder, by molding, firing and made. Fused mullite refractory brick to high bauxite, industrial alumina and fireclay refractories as raw materials, by adding charcoal or coke fine particles as reducing agent, forming after the use of reduced melting method to manufacture. The fused mullite is more crystalline than the sintered mullite and has a better thermal shock resistance than the sintered product. Their high temperature properties depend mainly on the alumina content and the homogeneity of the mullite phase with the glass distribution.
1. Low thermal conductivity, low heat capacity.
2. High purity, impurity content less.
3. High temperature, direct contact with the flame.
4. High strength, and has excellent thermal shock resistance. Applicable to metallurgy, petrochemical, building materials, ceramics, machinery and other industries of various industrial furnace hot surface lining and backing. Heat treatment furnace, resistance furnace, tunnel kiln, roller kiln, bell kiln, glass tank kiln and so on. The Refractory company products are widely used in many industries, such as: cracking furnace, reformer, heating device, refining device, regenerating device, hot air furnace.
Features:
Higher refractoriness, up to 1790 ℃ or more. The softening start temperature of the load is 1600 to 1700 ° C. Room temperature compressive strength of 70 ~ 260MPa. Thermal shock resistance is good. There are sintered mullite bricks and fused Mullite Insulating Firebrick. Sintered mullite brick to bauxite clinker as the main raw material, adding a small amount of clay or bauxite as binder, by molding, firing and made. Fused mullite refractory brick to high bauxite, industrial alumina and fireclay refractories as raw materials, by adding charcoal or coke fine particles as reducing agent, forming after the use of reduced melting method to manufacture. The fused mullite is more crystalline than the sintered mullite and has a better thermal shock resistance than the sintered product. Their high temperature properties depend mainly on the alumina content and the homogeneity of the mullite phase with the glass distribution.
2017年1月4日星期三
Clay, High Alumina Insulating Bricks---Refractory Brick---Refractory Material---Changxing Refractory
Clay, High Alumina Insulating Bricks
Introduction, Advantages, Application:
Produced with unique advanced technology, the clay and high alumina heat insulating bricks possess the characteristics of high intensity for pressure and good thermal shock stability. The use of the bricks can reduce the heat capacity of kiln walls and promote the heat efficiency of kilns. The product is applicable for constructing industrial kilns and inner lining of kilns.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=1&id=14
E-mail：sales8@chinaelong.com
Introduction, Advantages, Application:
Produced with unique advanced technology, the clay and high alumina heat insulating bricks possess the characteristics of high intensity for pressure and good thermal shock stability. The use of the bricks can reduce the heat capacity of kiln walls and promote the heat efficiency of kilns. The product is applicable for constructing industrial kilns and inner lining of kilns.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=1&id=14
E-mail：sales8@chinaelong.com
2017年1月3日星期二
What is the difference between clay refractory brick and high alumina refractory brick
First, there is a difference in the material, one is clay, one is high aluminum.
Clay tiles, also known as sintered refractory brick, are man-made small blocks for construction. The fireclay refractories are made of clay (including shale, coal gangue and other powder) as the main raw material. They are processed, formed, dried and roasted. Solid and hollow respectively.
alumina brick is a kind of refractory, the main component of this refractory brick is AL2O3.
Alumina content of 48% or more of a neutral Refractory company refractory material. From bauxite or other alumina content of the higher raw materials formed and calcined. High thermal stability, refractoriness above 1770 ℃. Slag resistance is good for masonry electric furnace, glass melting furnace, cement rotary furnace lining.
High load and soft creep high alumina brick [1] is a high grade refractory made of superfine bauxite, fused corundum and fused mullite as the main raw material. The product has high-temperature creep, corrosion resistance, thermal shock stability, etc., suitable for large and medium-sized hot stove.
Clay tiles, also known as sintered refractory brick, are man-made small blocks for construction. The fireclay refractories are made of clay (including shale, coal gangue and other powder) as the main raw material. They are processed, formed, dried and roasted. Solid and hollow respectively.
alumina brick is a kind of refractory, the main component of this refractory brick is AL2O3.
Alumina content of 48% or more of a neutral Refractory company refractory material. From bauxite or other alumina content of the higher raw materials formed and calcined. High thermal stability, refractoriness above 1770 ℃. Slag resistance is good for masonry electric furnace, glass melting furnace, cement rotary furnace lining.
High load and soft creep high alumina brick [1] is a high grade refractory made of superfine bauxite, fused corundum and fused mullite as the main raw material. The product has high-temperature creep, corrosion resistance, thermal shock stability, etc., suitable for large and medium-sized hot stove.
2017年1月2日星期一
Generality High Alumina Brick &Clay Brick---Refractory Brick---Refractory Material---Changxing Refractory
Generality High Alumina Brick &Clay Brick
Changxing Refractory's High Alumina Bricks and Fireclay range is available in different varieties/shapes as per the specifications given by the clients. We provide High Alumina Bricks that are highly resistant and durable without causing any environmental hazards maintaining High standards are made from a variety of raw materials having different properties. Shapes of the High Alumina Bricks are made as per the drawings and measurements provided by the clients and only high grade fireclay and raw materials are used in their manufacturing.
Advantages:
It is used in lining furnace kilns, fireboxes and fireplaces. Its primary purpose is to withstand high temperature and also to retain the heat for greater energy efficiency. We offer wide range of low, medium & high alumina refractory firebricks. High alumina brick have very good ability of anti-acidity, anti-metal fluid corrode and anti-oxidation.
Application:
High alumina brick have very good ability of anti-acidity, anti-metal fluid corrode and anti-oxidation.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=1&id=13
E-mail：sales8@chinaelong.com
Changxing Refractory's High Alumina Bricks and Fireclay range is available in different varieties/shapes as per the specifications given by the clients. We provide High Alumina Bricks that are highly resistant and durable without causing any environmental hazards maintaining High standards are made from a variety of raw materials having different properties. Shapes of the High Alumina Bricks are made as per the drawings and measurements provided by the clients and only high grade fireclay and raw materials are used in their manufacturing.
Advantages:
It is used in lining furnace kilns, fireboxes and fireplaces. Its primary purpose is to withstand high temperature and also to retain the heat for greater energy efficiency. We offer wide range of low, medium & high alumina refractory firebricks. High alumina brick have very good ability of anti-acidity, anti-metal fluid corrode and anti-oxidation.
Application:
High alumina brick have very good ability of anti-acidity, anti-metal fluid corrode and anti-oxidation.
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=1&id=13
E-mail：sales8@chinaelong.com
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