High-purity casting powder has the characteristics of high bulk density, low porosity, good volume stability and thermal shock resistance. It can replace zircon sand and powder, which is suitable for investment casting shell materials, and has excellent shell thermal stability and high temperature chemical stability. It is used for mold, core surface sand and coating of large steel castings, especially alloy castings. At the same time, it can also be used as semi-fine grinding and fine grinding abrasives for hardened steel and alloy steel.
