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
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.
2016年12月14日星期三
Refractory brick and clay fire brick distinction
refractory brick and fireclay refractories distinction
Clay refractory bricks are a kind of refractory bricks, the precise definition of refractory products are shaped, from the delivery form of distinction is a series of refractories.
Refractories are divided into ordinary refractories (1580 ~ 1770 ℃), advanced refractories (1770 ~ 2000 ℃) and special refractories (2000 ℃ above); according to the chemical characteristics of acid refractories, Neutral refractories and refractories. In addition, there are special occasions for the refractory material.
Now the definition of refractory, has not only depends on whether the refractoriness of 1580 ℃ or more. refractory brick for sale refers to the current application of metallurgical, petrochemical, cement, ceramics and other production equipment lining the inorganic non-metallic materials.
Acid refractories to silicon oxide (SiO2) as the main component, commonly used silica brick and clay brick. Silica brick is more than 93% SiO2 silica products, the use of raw materials are silica, waste silica brick. Silica brick acid-resistant slag erosion ability, but susceptible to the erosion of slag, and its load softening temperature is high, close to its refractoriness, after repeated calcination volume does not shrink, or even a slight expansion, but the thermal shock resistance is poor. Silica brick is mainly used for coke oven, glass furnace, acid furnace and other thermal equipment, silica brick in accordance with the SiO2 content and physical and chemical indicators can be divided into several levels, mainly divided into glass kiln silica brick and coke oven silicon Brick two categories. Clay brick or refractory clay clinker as the main raw material, containing 30% to 46% of alumina, refractoriness 1580 ~ 1770 ℃, is a weak acid refractory, good thermal shock resistance, acid slag corrosion resistance , Widely used in clay bricks to refractory clay as the main raw material is called ordinary clay bricks to coke gem clinker as the main raw material made of porosity was 17% below the clay brick known as low porosity clay brick. Two kinds of clay brick and according to which the physical and chemical indicators are divided into several grades, ordinary clay brick and low porosity clay brick between the price difference.
Neutral refractories to alumina, chromium oxide, silicon carbide or carbon as the main component. Neutral Refractory company in the main products are: corundum bricks, high alumina bricks, silicon Mo brick, mullite bricks, aluminum chrome bricks, aluminum carbon brick, graphite or carbon brick. High alumina products in the main crystalline phase is mullite and corundum, corundum content increases with increasing alumina content, alumina containing 95% of the corundum products is a wide range of high-quality refractory material containing alumina 95% of the corundum products is a wider use of high-quality refractories. The chrome brick with chromium oxide as the main component has good corrosion resistance to steel slag, but the thermal shock resistance is poor and the softening degree is low. High alumina bricks of the indicators are relatively good, with good cost-effective, so widely used, but because of high alumina brick erosion resistance is poor, it can not be applied to the key conditions of complex conditions, silicon brick is the use of aluminum Bauxite and silicon carbide as the main raw materials, mainly used in the transition zone of cement rotary kiln.
Carbon refractories are carbon brick, graphite products and silicon carbide products. Carbon products is another kind of neutral refractory material, which is divided into three categories: carbon brick, graphite product and silicon carbide based on the composition of carbonaceous material and the mineral composition of products. Carbon brick is a high-grade petroleum coke as raw material, plus tar, asphalt binder, at 1300 ℃ isolated from the firing of air conditions. Graphite products (except natural graphite) with carbonaceous materials in the electric furnace in 2500 ~ 2800 ° C in the graphite system in the system. Silicon carbide products are silicon carbide as raw materials, plus clay, silica and other binder in 1350 ~ 1400 ℃ firing. Silicon carbide plus silicon powder can also be made in the electric furnace nitrogen atmosphere under silicon nitride - silicon carbide products. Carbon products, low thermal expansion coefficient, high thermal conductivity, good thermal shock resistance, high temperature strength. Long-term use at high temperatures do not soften, from any acid erosion, a good salt resistance, not by the metal and slag wetting, light weight, high-quality high-temperature materials. Disadvantage is easily oxidized at high temperatures, should not be used in the oxidizing atmosphere. Carbon products are widely used in high-temperature furnace lining (bottom, hearth, lower furnace, etc.), melting non-ferrous metal furnace lining. Graphite products can do the reaction tank and petrochemical autoclave lining. Silicon carbide and graphite products can also be made of melting copper alloy and light alloy crucible. Carbon brick and graphite products, the main component of carbon (C), the thermal expansion coefficient is very low, high thermal conductivity, good thermal shock resistance, high temperature strength, acid and salt erosion, especially weak acid has good resistance , Free from metal and slag wetting, light, generally used in iron and steel smelting industry, but also for petroleum, chemical industry, autoclave lining. Silicon carbide is an excellent refractory, good corrosion resistance, but at high temperatures (more than 1400 degrees) is easy to oxidize, not suitable for use in the oxidizing atmosphere.
The main refractory products are magnesia and oxygen. The main products include magnesia brick, magnesia-chrome brick, Spinel brick and so on. Magnesia (MgO) more than 80% of the fire brick called magnesium bricks, according to the index can be divided into many grades of grades, magnesium bricks on the slag and iron slag has a good resistance, refractoriness than clay brick and silica brick high. Mainly used for open hearth, oxygen blowing converter, electric furnace, non-ferrous metal smelting equipment and glass industry and some high-temperature equipment. Magnesia-chrome brick on the resistance of the slag stronger, and the thermal shock stability is also much higher than the magnesium brick, so the application of more extensive, magnesia-chrome brick in the iron and steel smelting and non-ferrous metal smelting industry has almost replaced magnesium brick, Because of its chromium oxide (Cr2O3) can continue to spread, the magnesia-chrome brick can be easily linked to the kiln skin, so in the last 30 years, has been the first choice for cement kiln firing refractories, magnesia chrome brick Cr2O3 Will react with water, trivalent chromium can become hexavalent chromium, will cause pollution of water, is facing the trend of gradually withdraw from the cement industry market. Magnesia-alumina brick using magnesia and alumina as raw materials, compared with magnesia brick, its thermal shock stability and high temperature creep performance is better, use the site and almost the same as magnesium bricks. Dolomite brick and magnesium calcium brick performance is almost the same, dolomite brick to dolomite as raw materials, magnesium calcium bricks to synthetic magnesium calcium sand as raw materials, oxygen content is generally 15-30%, the remaining components are mainly magnesium oxide, with The role of purification of molten steel, generally only for the special steel smelting, magnesium calcium brick production process is more complex, easy to hydration and decomposition of water and steam, not easy to transport, the use of the process must be prepared to prevent work. Manganese iron spinel brick is a new product, mainly used for cement rotary kiln firing zone and transition zone, will be the cement industry alternative to magnesia chrome brick main products.
Refractory materials such as carbides, nitrides, borides, silicides and sulphides, such as alumina, lanthanum oxide, beryllium oxide, oxygen, zirconia and the like, are used in special applications. (Silicon carbide, titanium carbide, tantalum carbide, etc.), nitrides (boron nitride, silicon nitride and the like), borides (borides (borides), and the like); refractory materials having a melting point of 2050 to 3050C or higher; Zirconium, titanium boride, hafnium boride, etc.), silicides (such as molybdenum disilicide), and sulfides (thorium sulfide, cerium sulfide, etc.). Their melting point for the 2000 ~ 3887 ℃, of which the most refractory is the carbide. High temperature composites such as metal ceramics, high temperature inorganic coatings and fiber reinforced ceramics.
Special materials are often used AZS brick (ie, zirconia corundum brick), corundum brick, direct combination of magnesia-chrome brick, silicon carbide brick, silicon nitride bonded silicon carbide brick, nitride, silicide, sulfide, boride, carbonation And other non-oxide refractory materials; oxygen, chromium oxide, aluminum oxide, magnesium oxide, beryllium oxide, and other refractories. Commonly used insulation refractory products are diatomite, asbestos products, such as insulation boards. Refractory refractory materials are often used in refractory castables, refractory mud, refractory ramming material, refractory plastic, fill charge, refractory gunning materials, refractory materials, refractory coatings, lightweight refractory castable, gun mud and so on.
Clay refractory bricks are a kind of refractory bricks, the precise definition of refractory products are shaped, from the delivery form of distinction is a series of refractories.
Refractories are divided into ordinary refractories (1580 ~ 1770 ℃), advanced refractories (1770 ~ 2000 ℃) and special refractories (2000 ℃ above); according to the chemical characteristics of acid refractories, Neutral refractories and refractories. In addition, there are special occasions for the refractory material.
Now the definition of refractory, has not only depends on whether the refractoriness of 1580 ℃ or more. refractory brick for sale refers to the current application of metallurgical, petrochemical, cement, ceramics and other production equipment lining the inorganic non-metallic materials.
Acid refractories to silicon oxide (SiO2) as the main component, commonly used silica brick and clay brick. Silica brick is more than 93% SiO2 silica products, the use of raw materials are silica, waste silica brick. Silica brick acid-resistant slag erosion ability, but susceptible to the erosion of slag, and its load softening temperature is high, close to its refractoriness, after repeated calcination volume does not shrink, or even a slight expansion, but the thermal shock resistance is poor. Silica brick is mainly used for coke oven, glass furnace, acid furnace and other thermal equipment, silica brick in accordance with the SiO2 content and physical and chemical indicators can be divided into several levels, mainly divided into glass kiln silica brick and coke oven silicon Brick two categories. Clay brick or refractory clay clinker as the main raw material, containing 30% to 46% of alumina, refractoriness 1580 ~ 1770 ℃, is a weak acid refractory, good thermal shock resistance, acid slag corrosion resistance , Widely used in clay bricks to refractory clay as the main raw material is called ordinary clay bricks to coke gem clinker as the main raw material made of porosity was 17% below the clay brick known as low porosity clay brick. Two kinds of clay brick and according to which the physical and chemical indicators are divided into several grades, ordinary clay brick and low porosity clay brick between the price difference.
Neutral refractories to alumina, chromium oxide, silicon carbide or carbon as the main component. Neutral Refractory company in the main products are: corundum bricks, high alumina bricks, silicon Mo brick, mullite bricks, aluminum chrome bricks, aluminum carbon brick, graphite or carbon brick. High alumina products in the main crystalline phase is mullite and corundum, corundum content increases with increasing alumina content, alumina containing 95% of the corundum products is a wide range of high-quality refractory material containing alumina 95% of the corundum products is a wider use of high-quality refractories. The chrome brick with chromium oxide as the main component has good corrosion resistance to steel slag, but the thermal shock resistance is poor and the softening degree is low. High alumina bricks of the indicators are relatively good, with good cost-effective, so widely used, but because of high alumina brick erosion resistance is poor, it can not be applied to the key conditions of complex conditions, silicon brick is the use of aluminum Bauxite and silicon carbide as the main raw materials, mainly used in the transition zone of cement rotary kiln.
Carbon refractories are carbon brick, graphite products and silicon carbide products. Carbon products is another kind of neutral refractory material, which is divided into three categories: carbon brick, graphite product and silicon carbide based on the composition of carbonaceous material and the mineral composition of products. Carbon brick is a high-grade petroleum coke as raw material, plus tar, asphalt binder, at 1300 ℃ isolated from the firing of air conditions. Graphite products (except natural graphite) with carbonaceous materials in the electric furnace in 2500 ~ 2800 ° C in the graphite system in the system. Silicon carbide products are silicon carbide as raw materials, plus clay, silica and other binder in 1350 ~ 1400 ℃ firing. Silicon carbide plus silicon powder can also be made in the electric furnace nitrogen atmosphere under silicon nitride - silicon carbide products. Carbon products, low thermal expansion coefficient, high thermal conductivity, good thermal shock resistance, high temperature strength. Long-term use at high temperatures do not soften, from any acid erosion, a good salt resistance, not by the metal and slag wetting, light weight, high-quality high-temperature materials. Disadvantage is easily oxidized at high temperatures, should not be used in the oxidizing atmosphere. Carbon products are widely used in high-temperature furnace lining (bottom, hearth, lower furnace, etc.), melting non-ferrous metal furnace lining. Graphite products can do the reaction tank and petrochemical autoclave lining. Silicon carbide and graphite products can also be made of melting copper alloy and light alloy crucible. Carbon brick and graphite products, the main component of carbon (C), the thermal expansion coefficient is very low, high thermal conductivity, good thermal shock resistance, high temperature strength, acid and salt erosion, especially weak acid has good resistance , Free from metal and slag wetting, light, generally used in iron and steel smelting industry, but also for petroleum, chemical industry, autoclave lining. Silicon carbide is an excellent refractory, good corrosion resistance, but at high temperatures (more than 1400 degrees) is easy to oxidize, not suitable for use in the oxidizing atmosphere.
The main refractory products are magnesia and oxygen. The main products include magnesia brick, magnesia-chrome brick, Spinel brick and so on. Magnesia (MgO) more than 80% of the fire brick called magnesium bricks, according to the index can be divided into many grades of grades, magnesium bricks on the slag and iron slag has a good resistance, refractoriness than clay brick and silica brick high. Mainly used for open hearth, oxygen blowing converter, electric furnace, non-ferrous metal smelting equipment and glass industry and some high-temperature equipment. Magnesia-chrome brick on the resistance of the slag stronger, and the thermal shock stability is also much higher than the magnesium brick, so the application of more extensive, magnesia-chrome brick in the iron and steel smelting and non-ferrous metal smelting industry has almost replaced magnesium brick, Because of its chromium oxide (Cr2O3) can continue to spread, the magnesia-chrome brick can be easily linked to the kiln skin, so in the last 30 years, has been the first choice for cement kiln firing refractories, magnesia chrome brick Cr2O3 Will react with water, trivalent chromium can become hexavalent chromium, will cause pollution of water, is facing the trend of gradually withdraw from the cement industry market. Magnesia-alumina brick using magnesia and alumina as raw materials, compared with magnesia brick, its thermal shock stability and high temperature creep performance is better, use the site and almost the same as magnesium bricks. Dolomite brick and magnesium calcium brick performance is almost the same, dolomite brick to dolomite as raw materials, magnesium calcium bricks to synthetic magnesium calcium sand as raw materials, oxygen content is generally 15-30%, the remaining components are mainly magnesium oxide, with The role of purification of molten steel, generally only for the special steel smelting, magnesium calcium brick production process is more complex, easy to hydration and decomposition of water and steam, not easy to transport, the use of the process must be prepared to prevent work. Manganese iron spinel brick is a new product, mainly used for cement rotary kiln firing zone and transition zone, will be the cement industry alternative to magnesia chrome brick main products.
Refractory materials such as carbides, nitrides, borides, silicides and sulphides, such as alumina, lanthanum oxide, beryllium oxide, oxygen, zirconia and the like, are used in special applications. (Silicon carbide, titanium carbide, tantalum carbide, etc.), nitrides (boron nitride, silicon nitride and the like), borides (borides (borides), and the like); refractory materials having a melting point of 2050 to 3050C or higher; Zirconium, titanium boride, hafnium boride, etc.), silicides (such as molybdenum disilicide), and sulfides (thorium sulfide, cerium sulfide, etc.). Their melting point for the 2000 ~ 3887 ℃, of which the most refractory is the carbide. High temperature composites such as metal ceramics, high temperature inorganic coatings and fiber reinforced ceramics.
Special materials are often used AZS brick (ie, zirconia corundum brick), corundum brick, direct combination of magnesia-chrome brick, silicon carbide brick, silicon nitride bonded silicon carbide brick, nitride, silicide, sulfide, boride, carbonation And other non-oxide refractory materials; oxygen, chromium oxide, aluminum oxide, magnesium oxide, beryllium oxide, and other refractories. Commonly used insulation refractory products are diatomite, asbestos products, such as insulation boards. Refractory refractory materials are often used in refractory castables, refractory mud, refractory ramming material, refractory plastic, fill charge, refractory gunning materials, refractory materials, refractory coatings, lightweight refractory castable, gun mud and so on.
2016年12月8日星期四
Ladle Magnesia Carbon Brick---Refractory Brick---Refractory Material---Changxing Refractory
Ladle Magnesia Carbon Brick
Introduction:
Magnesia Alumina Carbon Brick is formulated for ladle linings and is manufactured with very high purity electro fused Magnesia, high purity Graphite, Alumina and Antioxidants
Advantages:
High purity Alumina and Magnesia thermal shock properties. It has the performance between magnesia carbon brick and alumina magnesia carbon brick
Application:
They are used in Ladle linings, ladle upper and lower slag line, ladle wall and ladle bottom
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=1&id=3
E-mail：sales8@chinaelong.com
Introduction:
Magnesia Alumina Carbon Brick is formulated for ladle linings and is manufactured with very high purity electro fused Magnesia, high purity Graphite, Alumina and Antioxidants
Advantages:
High purity Alumina and Magnesia thermal shock properties. It has the performance between magnesia carbon brick and alumina magnesia carbon brick
Application:
They are used in Ladle linings, ladle upper and lower slag line, ladle wall and ladle bottom
Content source:
http://www.yilongrefractory.com/AllProductOneServlet?id1=1&id=3
E-mail：sales8@chinaelong.com
2016年11月21日星期一
Characteristics and Application of Refractory Castables with High Aluminum and Low Cement Content
refractories castable is made of refractory aggregate and high alumina cement. During the preparation process, the particle gradation of the fine aggregate fraction was not well designed. Cement particles are also coarse (specific surface area is generally 3000cm2 / g or so), the amount of cement is generally 15 to 25 percent, and the construction water consumption is 10 to 15 percent. Coupled with the amount of cement and more coarse particles, so that the cement can not be fully hydrated, resulting in poor performance of castables.
Low cement castable refractory castable is to overcome the shortcomings of the traditional refractory castable, the use of lower cement content, ultrafine powder technology, the correct design of aggregates push collection, and the use of highly efficient surface-active additives and other comprehensive technical measures prepared from, With the traditional refractory material pouring
High solidification rate, good volume stability, after drying and calcination, the volume shrinkage is small "and so on. It has the characteristics of low cement content, high compactness and low porosity, high normal temperature curing strength, good volume stability.
"GJ-180 high-strength refractory company castable" is based on fused white fused alumina as aggregate with pure calcium aluminate cement as the binder made of. The highest temperature of use of this casting material to 1800 ℃, 1400 ℃ under the hot state of the flexural strength of 7.4MPa, at high temperatures also has a good Wear resistance. It is suitable for the new kiln dry kiln cement kiln, three-channel coal nozzle and other parts used.
"GJ-18S castable" is fused white corundum as aggregate, it is a low cement content of refractory castable, the castable has a high mechanical strength and erosion resistance, erosion resistance, the maximum temperature of 1600 ℃ , Depending on its performance, this castable is suitable 1000 ~ 1400 ℃, the impact of serious wear and tear of large cement kiln mouth, multi-cylinder cooler elbow and other parts used.
"LC-160 castable" is a low-cement refractory castable, is based on high alumina bauxite clinker aggregate, pure calcium aluminate cement as a binder prepared, suitable for small and medium-sized dry kiln cement kiln mouth, Cooler elbow parts apply.
"GJ-15B (or GJ-15A) castable" commonly known as alkali-resistant high-alumina low-cement refractory castable, refractory brick for sale, it is through the matrix composition of the adjustment and control of preparation, with high mechanical strength, alkali corrosion, Temperature of 1500 ° C, suitable for cement production
The original, the fuel contains alkali, sulfur, chlorine high number of large dry kiln.
Low cement castable refractory castable is to overcome the shortcomings of the traditional refractory castable, the use of lower cement content, ultrafine powder technology, the correct design of aggregates push collection, and the use of highly efficient surface-active additives and other comprehensive technical measures prepared from, With the traditional refractory material pouring
High solidification rate, good volume stability, after drying and calcination, the volume shrinkage is small "and so on. It has the characteristics of low cement content, high compactness and low porosity, high normal temperature curing strength, good volume stability.
"GJ-180 high-strength refractory company castable" is based on fused white fused alumina as aggregate with pure calcium aluminate cement as the binder made of. The highest temperature of use of this casting material to 1800 ℃, 1400 ℃ under the hot state of the flexural strength of 7.4MPa, at high temperatures also has a good Wear resistance. It is suitable for the new kiln dry kiln cement kiln, three-channel coal nozzle and other parts used.
"GJ-18S castable" is fused white corundum as aggregate, it is a low cement content of refractory castable, the castable has a high mechanical strength and erosion resistance, erosion resistance, the maximum temperature of 1600 ℃ , Depending on its performance, this castable is suitable 1000 ~ 1400 ℃, the impact of serious wear and tear of large cement kiln mouth, multi-cylinder cooler elbow and other parts used.
"LC-160 castable" is a low-cement refractory castable, is based on high alumina bauxite clinker aggregate, pure calcium aluminate cement as a binder prepared, suitable for small and medium-sized dry kiln cement kiln mouth, Cooler elbow parts apply.
"GJ-15B (or GJ-15A) castable" commonly known as alkali-resistant high-alumina low-cement refractory castable, refractory brick for sale, it is through the matrix composition of the adjustment and control of preparation, with high mechanical strength, alkali corrosion, Temperature of 1500 ° C, suitable for cement production
The original, the fuel contains alkali, sulfur, chlorine high number of large dry kiln.
Refractory Balls---Used for HBS Regenerator---Changxing Refractory material
 | |
| Refractory Balls---Used for HBS Regenerator---Changxing Refractory material |
Application:
Application of regenerator in gas burning industrial furnace combustion system
Introduction and Advantages:
According to the structure of regenerator different, many kinds of products, good thermal shock resistance, large heat storage capacity, high strength, easy to clean, can be repeated use.
Content source:
http://www.yilongrefractory.com/ProductServletOne?id1=4&id=82
E-mail：sales8@chinaelong.com
2016年11月16日星期三
Steel fiber reinforced low cement refractory castable
A heat-resistant steel fiber of a certain size is added to a castable refractories in a mixture consisting of a refractory material aggregate, a binder and an admixture to become
a steel fiber reinforced refractory castable. Compared with castables without heat-resistant steel fireclay refractories, the castable has the following characteristics:
1, can inhibit castable in the curing, baking and high temperature use in the contraction;
2, to improve the toughness of castable, anti-mechanical impact and mechanical strength;
3, to improve the thermal shock resistance of castable;
4, to prevent the cast material generated within the micro-cracks in the thermal stress and mechanical stress under the expansion or extension caused by the occurrence of fracture or peeling.
a steel fiber reinforced refractory castable. Compared with castables without heat-resistant steel fireclay refractories, the castable has the following characteristics:
1, can inhibit castable in the curing, baking and high temperature use in the contraction;
2, to improve the toughness of castable, anti-mechanical impact and mechanical strength;
3, to improve the thermal shock resistance of castable;
4, to prevent the cast material generated within the micro-cracks in the thermal stress and mechanical stress under the expansion or extension caused by the occurrence of fracture or peeling.
2016年11月14日星期一
Tundish Impact Plate----Changxing Refractory Material---used for steel plant
Tundish Impact Plate
Introduction:
An impact plate formed from a refractory material for reducing the turbulence of a molten metal poured therein. The impact pad has a plurality of sidewalls, each sidewall having a plurality of spherically shaped portions. The spherically shaped portions disperse the molten metal in a variety of directions.
Advantages:
They are characterized by good slag resistance, high hot strength and long service life. Such products can be rationally matched according to requirements by processing, service time and cleaness of molten steel.
Application:
good thermal shock resistance, high temperature resistance, good erosion resistance and long service time.
Contect source:
http://www.yilongrefractory.com/ProductServletOne?id1=4&id=56
E-mail：sales8@chinaelong.com
 |
| Tundish Impact Plate----Changxing Refractory Material---used for steel plant |
An impact plate formed from a refractory material for reducing the turbulence of a molten metal poured therein. The impact pad has a plurality of sidewalls, each sidewall having a plurality of spherically shaped portions. The spherically shaped portions disperse the molten metal in a variety of directions.
Advantages:
They are characterized by good slag resistance, high hot strength and long service life. Such products can be rationally matched according to requirements by processing, service time and cleaness of molten steel.
Application:
good thermal shock resistance, high temperature resistance, good erosion resistance and long service time.
Contect source:
http://www.yilongrefractory.com/ProductServletOne?id1=4&id=56
E-mail：sales8@chinaelong.com
2016年11月6日星期日
Refractory brick - --clay brick---Basic information
Properties of clay brick:
Clay brick is a weak acid refractory products, resistant to acidic slag and acid gas erosion, resistance to alkaline substances somewhat less. Clay refractory brick thermal performance is good, resistant to hot and cold.
The use of clay brick:
Clay, High Alumina Insulating Bricks is mainly used for clay brick building, blast furnace, hot stove, iron furnace, open hearth furnace and electric furnace and other low temperature part of the use of fireclay refractories. Bricks, bricks for casting systems, heating furnaces, heat treatment furnaces, combustion chambers, flues and chimneys. Clay bricks are especially suitable for large temperature changes.
http://www.yilongrefractory.com/ProductServletOne?id1=1&id=14
2016年11月3日星期四
Refractory ceramic fiber blanket professional thermal insulation material basic information
Refractory ceramic fiber blanket
Applications: Various industrial furnaces furnace furnace box-type furnace resistance furnace heat treatment furnace quenching furnace annealing furnace back to the furnace vacuum furnace firebrick refractory sintering furnace incinerator carburizing furnace special fire-resistant blanket ceramic fiber blanket, modular products; large-scale furnace equipment dedicated fire Good thermal stability; excellent tensile strength; low thermal conductivity; low heat capacity; excellent sound-absorbing basic refractories noise reduction performance. Features: excellent chemical stability; excellent thermal stability; High-temperature gasket; inorganic fire shutter doors fire-resistant layer; modules, folding block of raw materials. Insulation of high-temperature pipe insulation; electrical components fire insulation; Aerospace special fire - resistant blanket ceramic fiber blanket, module products.
The benefits of ceramic fiber blanket:
◎ In the module on the back of the various forms of the anchor makes the installation of the module can be used side by side arrangement can also be arranged parquet floor arrangement
◎ folding blanket in the lifting of the banding will be squeezed in different directions on each other, do not produce cracks
◎ elastic fiber blanket can resist mechanical external force
◎ ceramic fiber blanket elasticity can compensate for the deformation of the shell, making the gap between the components will not produce
◎ light weight, low heat absorption.
◎ low thermal conductivity can bring high energy efficiency
◎ has the ability to resist any thermal shock
◎ lining without drying and maintenance, so after installation can be put into use immediately
The anchoring system is located away from the hot surface of the assembly, making the metal anchor at a relatively low temperature, improving the safety of the anchorage
refractory company Henan Xinmi Changxing Refractory Material Co., Ltd. Located in Henan Province,China.ChangXing's product portfolio covers shaped products such as refractory materials,refractory brick, refractory castable,refractory nozzle, ceramic fiber, slide gate, etc; unshaped products including repair, construction and casting mixes and mortars.exported to more than 20 countries, such as Thailand, Indonesia, Pakistan, Saudi Arabia, South Africa, Turkey, Iran, Iraq and so on.
Applications: Various industrial furnaces furnace furnace box-type furnace resistance furnace heat treatment furnace quenching furnace annealing furnace back to the furnace vacuum furnace firebrick refractory sintering furnace incinerator carburizing furnace special fire-resistant blanket ceramic fiber blanket, modular products; large-scale furnace equipment dedicated fire Good thermal stability; excellent tensile strength; low thermal conductivity; low heat capacity; excellent sound-absorbing basic refractories noise reduction performance. Features: excellent chemical stability; excellent thermal stability; High-temperature gasket; inorganic fire shutter doors fire-resistant layer; modules, folding block of raw materials. Insulation of high-temperature pipe insulation; electrical components fire insulation; Aerospace special fire - resistant blanket ceramic fiber blanket, module products.
The benefits of ceramic fiber blanket:
◎ In the module on the back of the various forms of the anchor makes the installation of the module can be used side by side arrangement can also be arranged parquet floor arrangement
◎ folding blanket in the lifting of the banding will be squeezed in different directions on each other, do not produce cracks
◎ elastic fiber blanket can resist mechanical external force
◎ ceramic fiber blanket elasticity can compensate for the deformation of the shell, making the gap between the components will not produce
◎ light weight, low heat absorption.
◎ low thermal conductivity can bring high energy efficiency
◎ has the ability to resist any thermal shock
◎ lining without drying and maintenance, so after installation can be put into use immediately
The anchoring system is located away from the hot surface of the assembly, making the metal anchor at a relatively low temperature, improving the safety of the anchorage
refractory company Henan Xinmi Changxing Refractory Material Co., Ltd. Located in Henan Province,China.ChangXing's product portfolio covers shaped products such as refractory materials,refractory brick, refractory castable,refractory nozzle, ceramic fiber, slide gate, etc; unshaped products including repair, construction and casting mixes and mortars.exported to more than 20 countries, such as Thailand, Indonesia, Pakistan, Saudi Arabia, South Africa, Turkey, Iran, Iraq and so on.
2016年11月2日星期三
Refractory concrete of bauxite cement - Basic information
Refractory alumina bauxite concrete is the use of cement, refractory aggregate, admixture and water by a certain percentage of mixed molding, curing and hardening. Bauxite refractory concrete refractory brick with the same high temperature performance of the highest refractory temperature of 1650 degrees, when there are unparalleled advantages of refractory bricks. The refractory bricks in practical application of the formation of arbitrarily poor, and alumina refractory castable can be based on actual needs, according to design requirements, so that the internal structure of the drying furnace to form the ideal surface structure to form the ideal hot air. Thereby increasing the heat utilization rate. Shaped part of the refractory alumina brick masonry in the high temperature state of the overall strength is poor, resulting in residual shrinkage under high temperature, the roof is easy to collapse. The alumina refractory concrete structure is to make up for this shortcoming, it makes the furnace top as a whole structure, strength is very big, will not appear collapse phenomenon. Thereby prolonging the service life of the drying furnace.
The use of alumina castable materials concrete structure, greatly reducing the manufacturing cost. The use of alumina refractory concrete structure manufacturing and repair work is simple, convenient, easy to operate, repair time is short. In short, bauxite refractory concrete and refractory bricks compared to simplify the production process, reducing production costs and improve the quality of the drying furnace, is a better economic refractories.
The use of alumina castable materials concrete structure, greatly reducing the manufacturing cost. The use of alumina refractory concrete structure manufacturing and repair work is simple, convenient, easy to operate, repair time is short. In short, bauxite refractory concrete and refractory bricks compared to simplify the production process, reducing production costs and improve the quality of the drying furnace, is a better economic refractories.
2016年10月18日星期二
Selection and Evaluation of Refractory
Selection and Evaluation of Refractory
Before the rotary kiln operating cycle is mainly refractory material operating cycle impact is relatively large, but many companies blind pursuit of high-grade refractories, resulting in tons of clinker refractory consumption is not high, but the expense of high.
Simple analysis, the kiln refractory Ladle Permeable Brick should pay attention to refractory bricks and kiln castable selection. In fact, after 14 years of production experience found that kiln castables as long as the two key indicators can be more than 1,600 degree refractoriness can be another indicator is the requirements of wear-resistant kiln refractory brick for sale more simple, The use of magnesia-chrome brick can be, behind the bold use of silicon Mo brick
Preheater castable and alkali-resistant bricks must be careful not to over-high-grade can be grate cooler high-temperature zone and low wall wear-resistant castable with high temperature can be.
Refractory company Henan Xinmi Changxing Refractory Material Co., Ltd. Located in Henan Province,China.ChangXing's product portfolio covers shaped products such as refractory materials,refractory brick, refractory castable,refractory nozzle, ceramic fiber, slide gate, etc; unshaped products including repair, construction and casting mixes and mortars.exported to more than 20 countries, such as Thailand, Indonesia, Pakistan, Saudi Arabia, South Africa, Turkey, Iran, Iraq and so on.
Before the rotary kiln operating cycle is mainly refractory material operating cycle impact is relatively large, but many companies blind pursuit of high-grade refractories, resulting in tons of clinker refractory consumption is not high, but the expense of high.
Simple analysis, the kiln refractory Ladle Permeable Brick should pay attention to refractory bricks and kiln castable selection. In fact, after 14 years of production experience found that kiln castables as long as the two key indicators can be more than 1,600 degree refractoriness can be another indicator is the requirements of wear-resistant kiln refractory brick for sale more simple, The use of magnesia-chrome brick can be, behind the bold use of silicon Mo brick
Preheater castable and alkali-resistant bricks must be careful not to over-high-grade can be grate cooler high-temperature zone and low wall wear-resistant castable with high temperature can be.
Refractory company Henan Xinmi Changxing Refractory Material Co., Ltd. Located in Henan Province,China.ChangXing's product portfolio covers shaped products such as refractory materials,refractory brick, refractory castable,refractory nozzle, ceramic fiber, slide gate, etc; unshaped products including repair, construction and casting mixes and mortars.exported to more than 20 countries, such as Thailand, Indonesia, Pakistan, Saudi Arabia, South Africa, Turkey, Iran, Iraq and so on.
High temperature refractory ceramic fiber paper for kiln
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Ceramic Fiber Paper |
Application: Industrial kiln wall refractory well block lining, masonry insulation layer High temperature ceramic kiln kiln lining, kiln car, door baffle, kiln furnace temperature partition board high temperature and high temperature heat insulation equipment aerospace, shipbuilding industry insulation, fire protection, clay insulating bricks - Technical features: Low thermal conductivity Low thermal capacity Excellent thermal stability and thermal shock resistance High compressive strength, and has good toughness!
Refractory company Henan Xinmi Changxing Refractory Material Co., Ltd. Located in Henan Province,China.ChangXing's product portfolio covers shaped products such as refractory materials,refractory brick, refractory castable,refractory nozzle, ceramic fiber, slide gate, etc; unshaped products including repair, construction and casting mixes and mortars.exported to more than 20 countries, such as Thailand, Indonesia, Pakistan, Saudi Arabia, South Africa, Turkey, Iran, Iraq and so on.
2016年10月11日星期二
Influence of continuous casting refractories on pure steel and its development
In recent years, the performance requirements of steel is getting higher and higher. The higher the cleanliness of steel, alumina brick the better the performance. Steel impurity content reaches a certain level, the performance of steel will be a qualitative change. Steel oxygen, sulfur, phosphorus, hydrogen, nitrogen content of the five elements should be as low as possible. At present, the sum of the harmful elements coil grout [C, S, P, N, H, TO] in clean steel (IF steel and pipeline steel, etc.) produced at home and abroad advanced process can be controlled below 100 × 10-6, Some scholars have proposed the concept of ultra-clean steel, and defined as inclusions [C, S, P, N, H, TO] and the sum of 40 × 10-6 the following. Clean steel production is inseparable from the hot metal pretreatment, converter decarburization, refining and other secondary refining process optimization and control, and is also closely related to the use of refractory material, refined molten steel is likely to be continuous casting refractory pollution, Oxygen, nitrogen, hydrogen and other elements, so in the production of clean steel, refractory used in the study and reasonable choice is very important.
Continuous casting refractories Ladle Permeable Brick in clean steel production of molten steel in the carbon, nitrogen has a significant impact, the correct selection can be adsorbed molten steel sulfur, phosphorus inclusions, the purification of molten steel. In the production of clean steel should be selected alkaline, especially calcium refractories ladle slide gate, should adopt carbon-free, silicon-free or low-carbon low-silicon material. Metallurgical workers and the future direction of research refractories, refractories are continuous casting with functional, longevity and environmental protection.
Continuous casting refractories Ladle Permeable Brick in clean steel production of molten steel in the carbon, nitrogen has a significant impact, the correct selection can be adsorbed molten steel sulfur, phosphorus inclusions, the purification of molten steel. In the production of clean steel should be selected alkaline, especially calcium refractories ladle slide gate, should adopt carbon-free, silicon-free or low-carbon low-silicon material. Metallurgical workers and the future direction of research refractories, refractories are continuous casting with functional, longevity and environmental protection.
2016年10月10日星期一
Refractories How to better serve the aluminum smelting industry
refractory material from the combination of high-alumina phosphate refractory brick to the direction of development of low-cement castable. This new material gradually replaced the traditional phosphate-bonded brick and low cement castable.
In order to prevent the infiltration of liquid aluminum into the refractory, often use anti-wetting agent to increase the liquid aluminum and refractory material between the wetting angle, while extending the refractories life at high temperatures. For aluminum and aluminum alloy melting furnace and holding furnace refractory heating surface, the low-cement castable has replaced the phosphate-bonded high alumina brick. The reasons are as follows: in the low cement castable structure, there is a smaller pore size, liquid aluminum and aluminum alloy is more difficult to penetrate into the refractory, refractory oxide can be avoided by Ladle Permeable Brick aluminum reduction, while low cement castable Has excellent wear resistance. In recent years, low cement castable due to the use of liquid aluminum as an additive to increase the wetting angle, so its performance has improved.
In order to prevent the infiltration of liquid aluminum into the refractory, often use anti-wetting agent to increase the liquid aluminum and refractory material between the wetting angle, while extending the refractories life at high temperatures. For aluminum and aluminum alloy melting furnace and holding furnace refractory heating surface, the low-cement castable has replaced the phosphate-bonded high alumina brick. The reasons are as follows: in the low cement castable structure, there is a smaller pore size, liquid aluminum and aluminum alloy is more difficult to penetrate into the refractory, refractory oxide can be avoided by Ladle Permeable Brick aluminum reduction, while low cement castable Has excellent wear resistance. In recent years, low cement castable due to the use of liquid aluminum as an additive to increase the wetting angle, so its performance has improved.
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