由含锌93％、铝4％、铜3％和镁0.03～0.06％所组成的铸模用锌合金,用于制作落料凹模、凸模固定板等已较普遍,制模工艺也较成熟。但用它制造拉延成形模尚存在一些问题,主要是该种材料的收缩率达1％左右,在铸模中受零件几何形状、铸造工艺等诸因素的影响,极易产生不规则的收缩变形,难以获得 The zinc alloy for die casting composed of 93% zinc, 4% aluminum, 3% copper and 0.03% -0.06% magnesium has been used for making blanking dies, punch fixing plates and the like, and the molding process is relatively mature . However, there are still some problems with the manufacture of drawing dies, mainly due to shrinkage of the material up to about 1%, in the mold by the part geometry, casting process and other factors, can easily produce irregular shrinkage , Hard to get