Sand mixing process for replacing pure chromium ore

The invention provides a sand mixing process for replacing pure chromium ore. According to the sand mixing process for replacing the pure chromium ore, in casting production, according to different castings, chromium ore and silica sand are mixed in proportion, a mixed sand binder is added during mi...

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Bibliographic Details
Main Authors XU HUIJIE, MA ZHIQUAN, LIU PEIFANG, LIU HANGANG, ZHAO HELONG, MENG ERMING
Format Patent
LanguageChinese
English
Published 11.05.2021
Subjects
CASTING
FOUNDRY MOULDING
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
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Summary:The invention provides a sand mixing process for replacing pure chromium ore. According to the sand mixing process for replacing the pure chromium ore, in casting production, according to different castings, chromium ore and silica sand are mixed in proportion, a mixed sand binder is added during mixing, and the mixture is applied to a heat-concentrated part or area of a mold; and the particle size of the chromium ore is 40-70 meshes, the particle size of the silica sand is 40-70 meshes, the mixed binder is water glass, and the weight percentage of the added mixed binder is 2.8%-3.8%. The sand mixing process for replacing the pure chromium ore has the beneficial effects that the use amount of the chromium ore is flexibly controlled according to different requirements of different structures and parts of castings on the refractoriness and appearance quality of sand molds, the chromium ore and silica sand can be flexibly adjusted and used in the ranges of 2 to 1, 1 to 1, 1 to 2 and the like according to the act
Bibliography:Application Number: CN202011508189