As an important raw material for lost foam casting coatings, bauxite significantly improves the efficiency of the casting process and the quality of castings with its excellent fire resistance and chemical stability. Its fine and uniform particle size distribution helps to form a protective film, reduce the penetration of metal liquid, and ensure the dimensional accuracy and surface finish of castings. With the development of casting technology, the advantages of bauxite have become more and more obvious, becoming an indispensable material in the foundry industry.