GB/T 12215-1990
AbolishedBauxite sand and flour for investment casting
熔模铸造用铝矾土砂、粉
Application Summary AI generated
This standard specifies the technical requirements, test methods, and acceptance rules for bauxite sand and flour used as refractory materials in investment casting (lost-wax casting). It is applied in the foundry industry for producing ceramic shells and cores, particularly for precision casting of steel and high-temperature alloys. The standard ensures consistent particle size distribution, chemical composition, and thermal stability of the bauxite materials.
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