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How to make precision zinc die casting
Copy from:    Author:kenostian    Time:2015-11-30 14:46:26    Popularity:523

    Precision casting is a kind of special casting. The parts obtained by this method generally do not need to be machined. Such as investment casting, pressure casting, etc..
   
Precision zinc die casting is a casting method relative to the traditional casting technology. It can obtain relatively accurate shape and higher casting accuracy. The more common practice is: first, design and production of mold according to the requirements of the product (allowance very small margin or not allowance), then the cast wax into the mold to obtain the original wax model; repeated coating and sanding process in wax models, hardening shell and drying; then the internal wax melt, called dewaxing, get type cavity; roasting shell to obtain sufficient strength; pouring the metal materials you need; clear sand after the unshell, so as to achieve high precision of finished products of zinc die casting. According to the need to heat treatment and cold processing.


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