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precision casting [2012-08-13]


Precision casting is the modelling method with precision casting the floorboard of the gain accurate process

Among the more commonly used is the investment casting, also called the lost wax casting: choose appropriate revestment material system (such as paraffin) made revestment; In revestment repeat with refractory coating and and refractory sand process, sclerosis type shells, and dry; Then the internal introduced.technology off melting, get cavity; Roasting type to get enough strength shell, and burned the residual revestment materials,; Pouring need metal materials; Solidification cooling, QingSha after shelling, so as to achieve high accuracy of finished products. According to the products need or heat treatment and manufacture and surface treatment.

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