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Molding material for sand molds and sand mold molding methods using them
Molding material for sand molds and sand mold molding methods using them
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机译:砂模的成型材料及使用它们的砂模成型方法
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摘要
A sand mold shaping material contains an aggregate comprising inorganic particles, and microcapsules enclosing a binder which causes the aggregate to bind. The binder is a liquid binder that is in a liquid phase at room temperature, and is enclosed in an outer shell comprising a resin that forms the microcapsule. The sand mold shaping material is in a dry state when used to fill a molding die for shaping.
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