Silica Refractory Soil (Silica Ramming Mass) is one of the most widely used materials for lining induction furnaces, renowned for its high purity of 99% SiO2 and exceptional thermal and chemical properties. Produced from crystalline white quartz through calcination, crushing, and precise grading, this product is ideal for melting carbon steels with over 0.1% carbon and various alloys.
The performance of induction furnaces heavily depends on the quality of their linings. Silica Refractory Soil forms a dense, sintered layer in the furnace lining, providing excellent resistance to thermal shocks and erosion. With low thermal conductivity, it minimizes energy loss, and its dry preparation reduces heating and sintering time. Additionally, its low cost compared to other refractories makes it an economical choice for small to medium-scale steel producers.
Featuring standard grain sizes (0–5 mm) and enhanced with boric acid as a binder to improve sintering and strength, Silica Refractory Soil extends the lifespan of furnace linings. It is particularly suited for acidic slags and, with precise ramming techniques, ensures optimal and stable performance at operating temperatures up to 1600°C.
For European and American traders, our Silica Refractory Soil offers export-grade quality, standardized packaging, and the ability to supply in large volumes. By sourcing directly from Iranian manufacturers, you benefit from competitive pricing and guaranteed quality, making it a trusted choice for steelmaking and foundry industries.
Frequently Asked Questions
What types of furnaces is Silica Refractory Soil suitable for?
Silica Refractory Soil is ideal for induction furnaces used in melting carbon steels (with carbon content above 0.1%), mild steel, and various alloys. It is especially recommended for acidic slags.
Why is Silica Refractory Soil cost-effective?
This product is made from calcined quartz, a relatively inexpensive raw material, which reduces the overall cost of furnace lining. Its dry preparation also shortens processing time, further lowering operational expenses.
What is the role of boric acid in Silica Refractory Soil?
Boric acid acts as a binder, reacting with silica particles to form a low-melting-point glassy phase that fills voids between quartz grains, enhancing the lining’s strength and durability.
Can this product be customized for specific furnace requirements?
Yes, we offer customizable grain sizes and binder ratios based on furnace capacity, operating temperature, and slag composition to ensure optimal performance.
How does Silica Refractory Soil compare to other refractory materials?
Compared to aluminous or magnesia-based refractories, Silica Refractory Soil offers superior thermal shock resistance and lower costs, though it is less resistant to basic slags, where alumina-spinel linings may be preferred.
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