Salt core and preparation method thereof and salt core material

The invention belongs to the material field, and particularly relates to a salt core and a preparation method thereof and a salt core material. The salt core is prepared from mixed salt powder, and the mixed salt powder is prepared from 0.1wt%-2wt% of sodium metasilicate, 0.1wt%-3wt% of talcum powde...

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Bibliographic Details
Main Authors ZHU MAOCHUN, ZHU YIPENG, YI LYULIN, LIU LIGUO, HUANG DEWEI
Format Patent
LanguageChinese
English
Published 21.12.2018
Subjects
CASTING
FOUNDRY MOULDING
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
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Summary:The invention belongs to the material field, and particularly relates to a salt core and a preparation method thereof and a salt core material. The salt core is prepared from mixed salt powder, and the mixed salt powder is prepared from 0.1wt%-2wt% of sodium metasilicate, 0.1wt%-3wt% of talcum powder, 0.05wt%-1wt% of strontium sulfate, 0.05wt%-1.5wt% of a reinforcing agent and 92.5wt%-99.7wt% of sodium chloride. According to the salt core, by means of optimizing selection on the formula of the salt core, sodium metasilicate, talcum powder, strontium sulfate and the specific reinforcing agent are added in the salt powder, not only is the adhesion among the salt powder enhanced, but also the fluidity and the lubricity of the salt powder are improved, therefore, the strength and the strengthconsistency of the salt core are improved, the surface finish of the salt core is improved, surface microcracks of the salt core are reduced, and the dependency of the salt core strength on the salt powder granularity is redu
Bibliography:Application Number: CN201811030601