The main components of grate crucible are natural flake grate and binder, which have good thermal conductivity and high temperature resistance. Â During high temperature use, its thermal expansion coefficient is small, and it has certain strain resistance to rapid heating and rapid cooling. Â It has the advantages of strong acid and alkation corrosion resistance, good chemical stability, and no reaction with melt, and is a non-ferrous metal melting and casting device. Â Due to its exnt performance, grate crucibles are widely used in the smelting of alloy steel, non-ferrous metals and their alloys in metallurgy, casting, machinery, chemical industry and other industries. Â Good technical and economic effects have been achieved.