博文

目前显示的是 四月, 2026的博文

Characteristics and Optimization Points of Silicon Carbide Wear-Resistant Refractory Castables

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Silicon carbide wear-resistant castables possess the dual advantages of wear resistance and corrosion resistance. The most prominent property of silicon carbide castables is wear resistance, followed by corrosion resistance. The manufacturing process still uses traditional refractory castables as the framework, introducing a certain proportion of silicon carbide particles to form a composite structure of "refractory aggregate + silicon carbide". Rongsheng Silicon Carbide Wear-Resistant Castables Silicon carbide itself has high hardness and high grain boundary strength, allowing it to preferentially bear stress under erosion and friction conditions, thus slowing down matrix wear. Therefore, the overall wear resistance coefficient decreases, and the service life can typically be extended by one to two times. At the same time, silicon carbide has a large wetting angle with molten metal and slag, making it difficult to be wetted. Acidic and alkaline media also have difficulty co...

Refractory Materials for Molten Reduction Furnace

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Refractory materials for smelting reduction furnaces. Smelting reduction ironmaking is a novel process that uses little or no coke, reducing iron oxides in a high-temperature molten state and separating slag from iron to obtain carbon-containing molten iron similar to that produced in a blast furnace. It features a short metallurgical process, smaller scale, and less environmental pollution. However, due to its extensive and complex development process, huge investment, and the fact that many engineering problems could only be correctly resolved through industrial production practice, it was once stagnant. With a deeper understanding of its theoretical technology and pressure from ecological environment and natural resources, the development of smelting reduction and direct ironmaking technologies has accelerated. After decades of research and development, more than 30 smelting reduction ironmaking processes have emerged, but the COREX smelting reduction ironmaking process is currently...