High-strength refractory castable high strength wear-resistant castable by the high-strength aggregate, powder mineral additive composition, the optimal formulation design, with the smallest wear resistance, high strength, shape can be arbitrarily controlled, the overall strong, simple construction, Due to the addition of polymer, the base layer of concrete bonding firm. High-strength wear-resistant castable cheap, for the requirements of the construction site is the first choice of wear-resistant materials.
High-strength wear-resistant insulating castable refractory is a cement-based composite single-component dry mortar, from the high-strength cement, mineral admixture, high-strength aggregate and anti-cracking agent, the industrial production from the preparation. High-strength wearable castable can be used at the site of mixing with water, good construction workability, by artificial plaster in the silo or high insulating brick mine surface to form a certain thickness of the anti-wear layer, after the normal conservation to achieve technical requirements, with wear resistance High, and the basic concrete (steel silo) bonding strength, impact resistance, high compressive strength, durability, long life and so on. High-strength wear-resistant refractory material castable dedicated to metallurgy, coal, thermal power, chemical, cement and other industries Chong slag ditch, mine trough, unloading trough, the hopper, silo lining material anti-wear layer and water conservancy and hydropower, port and other projects Of the discharge gate, discharge hopper anti-wear layer, play a protective foundation of concrete (or steel silo) role. basic refractories Boiler kiln lining easy to wear parts with high-strength wear-resistant castable HF series castable is widely used throughout the country to build furnace kiln boiler construction and repair works.
2016年11月2日星期三
Slide Gate Mechanism---Changxing Refractory material
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| Slide Gate Mechanism---Changxing Refractory material |
Introduction:
Ladle slide gate mechanism, also called ladle slide gate system, slide gate assembly, sliding gate machenism. Ladle slide gate mechanism uses nodular cast iron as raw material. The sealing height is only 110mm. The fan-shaped slide gate plate is equipped with two slide plate blocks. The moving fan-shaped case handle can make one of the slide plate cast hole in working, and make another one moving to the other space of the equipment. At the same time, the moving out slide block can be changed.
Advantages:
1. Slip sheet is force uniform have good stability.
2. Sliding gate lateral clearance self-regulating sensitivity is high.
3. Increase the slip sheet's freedom, bottom slide can vertical-tuning.
4. Have double-sided tight pin; the gab of hinge lateral can be adjusted.
Application:
The slide blocks thicknesses are heightened by this equipment which can be used as rapid nozzle-change mechanism. While add immerse nozzle at the bottom of slide block, the ladle stopper can be replaced and protect the casting.
Content source:
http://www.yilongrefractory.com/ProductServletOne?id1=4&id=54
E-mail：sales8@chinaelong.com
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.
2016年7月31日星期日
How To Improve The Glass Phase Of Fused Cast AZS Block
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| Changxing Refractory Material |
Iron, titanium, calcium, magnesium and other impurities should be avoided. The impurities can increase the glass phase but reduce the the viscosity of glass phase and pollute the glass melt.
SiO2 and Na2O are the main components tundish well block of the glass phase of fused cast AZS blocks. The content of SiO2 and Na2O is related to the amount of glass phase. Controlling the content of SiO2 and Na2O strictly is the key to ensure the performance of glass phase.
The main composition of Clay, High Alumina insulating bricks fused cast AZS block includes baddeleyite, corundum, a small amount of mullite, glass phase and pores. In order to reduce and eliminate the residual thermal stress, the glass phase is essential for fused cast AZS to act as a buffer for the thermal stress.
However, too much glass phase zirconium sizing nozzle will weaken the corrosion resistance. In the process of corrosion, the glass phase exudes first and be replaced with the high temperature glass melt, which will accelerate the corrosion. Accompanying the exudation of glass phase, bubbles give off, which will contaminate the glass melt.
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.
4 Ways for Fused Cast AZS Casting
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| Changxing Refractory Material |
PT-Normal casting
It adopts general casting coil grout risers and the riser will be removed in the hot state. The shrinkage cavity in refractories brick is located under the casting scar, due to volume shrinkage from liquid-solid transform and rapid solidification of a casting. The feasible limits of cavity can be evaluated and indicated by the volume-weight testing of blocks in-situ according to the technical specifications.
PT fused cast AZS block nozzle refractory is always cheap and used in the areas with no serious corrosion such as top crown, superstructure and feeder channel. The surface with scars should not be used as the working surface.
QX-Tilt casting
In this method, the mold is inclined at an angle. The shrinkage cavity in brick disperses at one end of the brick and a completely dense zone forms at another end. The feasible limits of cavity can be evaluated and indicated by the volume-weight testing of blocks in-situ according to the technical specifications. Meanwhile, blocks which height less than 900mm are not suitable to be manufactured by this process.
QX fused cast AZS block dry vibration mix is generally used in the sidewall of glass furnaces.
ZWS-Reinforced casting
Similar to WS, merely a few shrinkage voids remain in upper part of the body. A little part of the cavity will be remained at the end of the block after the header cutting. Block evaluation in-situ begins from the determination for the feasible size and deepness of cavity remainder at first and then to the volume-weight testing of blocks according to the technical specifications.
ZWS fused cast AZS block is always used in the sidewall of glass furnaces.
WS-Void-free casting
Additional liquid from the header fills sufficiently into a casting and the header is then cut off, so no shrinkage cavity exists in brick body. Block evaluation in-situ includes the refractory fiber felt acceptance or rejection for somewhat trace of cavity remainder which perhaps appeared and the volume-weight testing of blocks according to technical specifications.
WS fused cast AZS block has a wide application in the glass furnaces such as sidewall, tank bottom, feeder channel, doghouse, throat, dam wall, electrode wall and corner wall.
Casting is a manufacturing process by which the melt is poured into a mold to be solidified. Although the process is short, it is a complex process and every step is related to the quality of the final products.
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7月20日星期三
The Development of Fused Cast refractories
In 1927, Corhart was founded. It is a refractory company producing fused cast refractories. Raw materials are melted in an electric arc furnace and then casted in a mold, just like metal casting. The lining of the electric arc furnace is made of the same materials. The temperature is up to the requirements of refractory products, generally 1800-2500℃.
The first fused cast refractory is fused cast mullite refractory. It has been widely used in the sidewall of glass furnaces. Later zircon is added to the raw materials. The melting temperature is reduced and the slag resistance of the products is improved.
In 1952, fused cast magnesia carbon bricks manufacturers, a new fused cast product, was developed by Corhart. It is mainly used in the steel industry.
When producing fused cast refractories, the melt is casted into a mold with a large cap. The wall of the mold is made of refractory materials. When casting is finished, the mold wall is removed. Then the mold is put into insulation materials to reduce thermal shock to obtain crystals with uniform sizes and minimum gaps.
Fused cast refractory is larger than the standard bricks, so it is difficult to cast. Currently, fused cast products for sale are always cut from big blocks.
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,high insulating 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.
Our product list:
http://www.yilongrefractory.com/AllProductServlet?id=4&number=20
The first fused cast refractory is fused cast mullite refractory. It has been widely used in the sidewall of glass furnaces. Later zircon is added to the raw materials. The melting temperature is reduced and the slag resistance of the products is improved.
In 1952, fused cast magnesia carbon bricks manufacturers, a new fused cast product, was developed by Corhart. It is mainly used in the steel industry.
When producing fused cast refractories, the melt is casted into a mold with a large cap. The wall of the mold is made of refractory materials. When casting is finished, the mold wall is removed. Then the mold is put into insulation materials to reduce thermal shock to obtain crystals with uniform sizes and minimum gaps.
Fused cast refractory is larger than the standard bricks, so it is difficult to cast. Currently, fused cast products for sale are always cut from big blocks.
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,high insulating 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.
Our product list:
http://www.yilongrefractory.com/AllProductServlet?id=4&number=20
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