ROTARY KILN BAUXITE WITH AL2O3 76 MIN IN GRAIN SIZE

Wholesale Price Of Silicon Carbide/Black Silicon Carbide

$Refractory Materials/ Zircon Sands and Zircon Flour/ Powder$

Refractory Materials/ Zircon Sands and Zircon Flour/ Powder

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Plastic Grade Mica Refractory Powder Product

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Refractory Castable ASC-6 Used For Iron Runner Of Casthouse

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96 Silicon Carbide/SiC Composition in Minerals & Metallurgy

ROTARY KILN BAUXITE 85

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Q & A

Explain the use of calcium aluminate aggregates in refractory castables.

Calcium aluminate aggregates are used in refractory castables because of their high temperature resistance and excellent thermal shock resistance. These aggregates are made from a combination of calcium oxide (CaO) and aluminum oxide (Al2O3), which form a strong and stable bond at high temperatures. The use of calcium aluminate aggregates helps to enhance the overall performance of refractory castables. They provide excellent strength, abrasion resistance, and resistance to chemical attack. Additionally, these aggregates have a low thermal conductivity, which helps to reduce heat loss and improve energy efficiency in high-temperature applications. Furthermore, calcium aluminate aggregates have a high melting point, allowing them to withstand extreme temperatures without significant deformation or degradation. This makes them ideal for use in furnaces, kilns, and other industrial processes where high temperatures are encountered. In summary, the use of calcium aluminate aggregates in refractory castables helps to improve the overall performance and durability of these materials in high-temperature applications by providing high temperature resistance, thermal shock resistance, strength, and resistance to chemical attack.

How is silicon carbide obtained and processed for refractory production?

Silicon carbide is obtained through a complex process involving the reaction between silica (SiO2) and carbon (C) at high temperatures. The process begins with the heating of a mixture of silica and carbon in an electric resistance furnace. The extreme heat causes a chemical reaction, resulting in the formation of silicon carbide. Once obtained, silicon carbide undergoes further processing to enhance its properties for refractory production. It is typically crushed into smaller particles and then milled to achieve the desired particle size distribution. The milled silicon carbide is then mixed with various binders and additives to form a slurry or paste. The slurry or paste is then shaped into the desired refractory product through methods like pressing, extrusion, or casting. After shaping, the product is usually dried and then fired at high temperatures in a kiln to improve its mechanical strength and thermal stability. Overall, the production of silicon carbide refractories involves obtaining silicon carbide by reacting silica and carbon, followed by processing and shaping the material to create the final refractory product with enhanced properties.

What are the refractory raw materials used in lining gasifiers?

The refractory raw materials commonly used in lining gasifiers include high-alumina bricks, silica bricks, magnesia bricks, and carbon-based materials such as graphite or carbon bricks. These materials are selected for their high heat resistance, chemical stability, and ability to withstand the harsh conditions inside a gasifier, such as high temperatures, corrosive gases, and thermal cycling.

What are the main sources of boron in refractory raw materials?

The main sources of boron in refractory raw materials are borax, colemanite, ulexite, and boron carbide.

Wholesale Raw Materials For Refractory from supplier in Rwanda

Whether you are in need of raw materials for refractory for your construction or industrial projects in Rwanda, we are here to serve you. As a branch of CNBM, a Fortune Global 500 company, we have access to a wide range of high-quality products and services.

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