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挤压铸造可细化Ｚｎ－Ａｌ４３型合金的铸态组织、减轻枝晶偏析、大幅度提高其力学性能，抗拉强度提高４０～８０％（１００～１５０ＭＰａ），延伸率提高至１０％以上，合金的耐磨性亦进一步提高．挤压铸造对合金组织的影响与凝固冷却速度的加快以及合金的平衡凝固温度升高有关，合金塑性、韧性显著改善的首要原因是枝晶间显微缩孔的消除，而合金强度的提高则主要是过饱和固溶体中的脱溶过程导致沉淀硬化与分散硬化的结果．
Squeeze casting can refine the as-cast microstructure of Zn-Al43 alloy and reduce the segregation of dendrites, greatly improving the mechanical properties. The tensile strength is increased by 40-80% (100-150MPa) and the elongation is increased to over 10% The wear resistance of the alloy is also further improved. The effect of squeeze casting on the microstructure of the alloy is related to the rapid cooling and solidification cooling and the increase of equilibrium solidification temperature. The primary reason for the significant improvement of plasticity and toughness of the alloy is the elimination of microscopic shrinkage between the dendrites, while the increase of the alloy strength is mainly It is the result of precipitation hardening and dispersion hardening caused by desolvation in supersaturated solid solution.