Silicon Carbide Bricks are highly resistant refractory materials designed to withstand high-temperature environments, making them an excellent choice for furnaces and kilns in various industries. Their special properties make them the go-to solution when looking for durable refractory materials withstanding extreme conditions.
Clay-bonded silicon carbide bricks are manufactured using coarse, medium, and fine silicon carbide powder mixed with clay binder as a binding agent and then compressed and formed using a brick press. They boast high strength as well as being highly oxidation resistant and thermal shock-resistant.
High Thermal Conductivity
Refractory materials play an essential role in protecting processes from high temperatures and harsh chemicals in industrial settings, balancing out their destructive impacts. Fireclay bricks and alumina have long been utilized for such tasks; more recently however, silicon carbide (SiC) ceramics have proven one of the more flexible options.
This remarkable material can withstand temperatures far beyond those that traditional refractory materials can withstand, in addition to boasting incredible properties like chemical resistance, low thermal expansion rates, and excellent abrasion resistance.
In the metallurgical industry, silicon carbide bricks are widely utilized to line blast furnaces used for aluminum smelting; while glass industries use it for firing ceramics and glass products. Power plants frequently install them as secondary tuyere bricks in gas turbine combustion chambers due to its excellent wear resistance and resistance to chemical corrosion properties that extend its lifespan significantly; helping minimize costs associated with repairs or replacements due to damage components.
High Strength
Silicon carbide bricks feature high mechanical strength, making them suitable for applications that demand significant loads and pressure on them. Furthermore, their low thermal expansion rate enables rapid temperature changes without cracking or breakage risks.
Mullite bonded silicon carbide bricks are composed of high purity Al2O3 and SiO2 micro powder or fine powder as a binder, with additional powder such as sillimanite, andalusite and kyanite available for adding as an oxidation resistance boost. These bricks are versatile products designed for industrial ceramics applications, nonferrous metal metallurgy and machinery industries. Common applications of these bricks are blast furnace shaft lower parts and tuyere suits; aluminum cell inner lining; and kiln furniture. Ceramic bricks are also resistant to chemicals like acids, alkalis, and molten metals. Unfortunately, they should not be exposed to environments with extremely high oxygen concentration at temperatures over 1000degC; in these conditions they may oxidize, leading to fry marks or small cracks on their surfaces.
Corrosion Resistance
Silicon carbide brick is highly resistant to acids, alkalis, and other chemicals; it also can withstand sudden temperature shifts without experiencing sudden cracking and stress-related damage to equipment linings. Furthermore, its low thermal expansion coefficient helps minimize cracking risk for added protection in environments with abrasive materials or processes.
Fire bricks are commonly utilized in metallurgy as the linings for furnaces and kilns used in copper and zinc smelting, secondary tuyeres of blast furnaces, electrolytic tank reduction tank linings, as well as wear-resistant applications like pipes, impellers, pump chambers, cyclones etc.
AGRM offers high-grade Silicon Carbide bricks tailored specifically to meet the requirements of your application. Our team of experts work closely with you to deliver results you require – contact us now to discover more about how they can improve your operations!
Durability
Silicon carbide bricks are exceptionally long-wearing refractory materials, making them perfect for high heat applications. Their thermal stability exceeds that of most refractory materials while still maintaining strength, chemical resistance and thermal stability – three essential characteristics in any high heat application.
They boast a low coefficient of thermal expansion, meaning they won’t expand or contract significantly with temperature changes, helping prevent cracking and deformation that would reduce lifespan considerably.
Manufacturers create silicon carbide bricks using a multi-step process to ensure their durability. Beginning by selecting high-grade raw materials, green bricks then undergo drying procedures designed to remove excess moisture and increase strength before being pre-fired before being subjected to high-temperature firing in special kilns or furnaces before quality control inspections to make sure that they meet necessary standards before they’re shipped off to customers.
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