GB/T 12214-1990
AbolishedSilica sand and flour for investment casting
熔模铸造用硅砂、粉
Application Summary AI generated
GB/T 12214-1990 specifies the technical requirements, test methods, and quality grading for silica sand and silica flour used as refractory materials in investment casting (lost-wax process). It is applied in foundries and precision casting industries to ensure the proper particle size distribution, chemical composition, and thermal stability of silica-based shell materials. The standard governs raw material selection for producing ceramic molds in aerospace, automotive, and art casting applications.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.