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锌基合金用于拉延——成形模具已有四十几年历史了,其中包括拉延、弯曲、成形等工序。今天在新产品试制中,少批量生产复杂形状的拉延成形件时,人们考虑到这类模具制模工艺的特点,进行比较,选择采用。这类拉延——成形模具属于中熔点铸造模具,它的制模工艺相对于钢模具是比较简单,容易掌握,同时可以节省大量机械加工工时,合金又可以反复重熔使用,尤其是合
Zinc-based alloys have been used in drawing-forming dies for more than four decades, including drawing, bending, forming and other processes. Today in the trial of new products, less mass production of complex shapes drawing parts, people take into account the characteristics of such mold making process, compared to choose to use. This type of drawing-forming mold belongs to the melting point casting mold. Its molding process is relatively simple and easy to grasp relative to the steel mold, meanwhile it can save a lot of machining working hours, and the alloy can be remelted repeatedly, especially