High Strength Wear Resistant Castable

Wear-resistant castable refractory is a type of unshaped refractory material made from granular and powdered refractory materials, combined with a certain amount of binder and water. It possesses high fluidity and is suitable for casting methods.

Physical And Chemical Indicators of wear resistant castable

High-strength wear-resistant castables are made with aggregates such as corundum or high-quality high-alumina bauxite clinker and silicon carbide, and formulated with various micro-powders, ultra-fine powders, corundum powder, and additives. They are used in complex structures of circulating fluidized bed boilers, such as air distribution plates, slag discharge pipes, dense phase zones of the furnace, furnace outlets, cyclone separators and inlet/outlet flues, return feeders, and slag coolers, where vertical molding and minimal vibration are possible.

Important indicators of the macroscopic structure of high-strength wear-resistant castables include porosity, water absorption, permeability, pore size distribution, bulk density, and true density. These are important indicators for evaluating the quality of refractory materials. Besides directly representing their own meanings, these indicators are also closely related to other properties of high-strength wear-resistant castables, such as thermal shock resistance, slag resistance, mechanical properties, and thermal conductivity.

The formation of the macroscopic structure of high-strength wear-resistant castables is closely related to the raw materials and manufacturing process, including the type, proportion, particle size, mixing, molding, drying, and firing conditions of the raw materials. Since the macroscopic structure reflects both the manufacturing process of high-strength wear-resistant castables and affects many of its important properties, studying the macroscopic structure of high-strength wear-resistant castables has important guiding significance for improving the process and enhancing performance.

High-strength wear-resistant refractory castables, depending on the grade, use corundum or high-quality high-alumina bauxite clinker, silicon carbide, and other aggregates, and are formulated with various micro-powders, ultra-fine powders, corundum powder, and additives.

High-strength high-alumina wear-resistant castables are widely used in different parts of furnace linings in power plants, boilers, melting furnaces, heating furnaces, soaking furnaces, heat treatment furnaces, and induction furnaces.