Industry Knowledge of Corundum Wear-resistant Refractory Castables

Corundum wear-resistant refractory castables are widely used in high-temperature industries such as steel, cement, and glass, due to their excellent wear resistance and thermal stability. These castables consist of high-purity corundum aggregates, binders, and additives.

One of the important factors that determine the quality of corundum wear-resistant refractory castables is their classification. There are typically three grades of these castables: low cement castables, ultra-low cement castables, and no cement castables. Each grade has different amounts of cement, which affects the strength, density, and permeability of the castable.

In terms of technical parameters, corundum wear-resistant refractory castables have high density, low porosity, and high strength. They also have good resistance to thermal shock and spalling. These castables have a maximum operating temperature of around 1800°C, making them suitable for use in high-temperature furnaces and kilns. The thermal conductivity of these castables is relatively low, which helps to reduce energy consumption.

The production process of corundum wear-resistant refractory castables involves several steps. First, the raw materials are selected and tested for purity and quality. Then, the raw materials are mixed in a precise ratio and shaped into the desired form. The castables are then cured and dried to remove any remaining moisture. Finally, the castables are fired at high temperatures to give them their final properties.

Corundum wear-resistant refractory castables are a crucial component in many high-temperature industrial processes. Their classification, technical parameters, and production process all contribute to their high performance and durability. As industries continue to demand high-quality, reliable materials, the demand for corundum wear-resistant refractory castables is likely to continue to grow.