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锌合金压铸由于溶化温度低,易于形成几何形状较为复杂的各种零件。其精度和机械性能较高、抗压和耐磨性较好、价格也较便宜。近年来,这种技术在国外发展很快,国内用它来取代金属制品亦逐渐增多。例如红旗轿车上的车门把手、烟灰盒盖、喇叭按钮、钟表框等。锌合金的主要成分是锌,约占95%。由于锌是两性金属,化学性质活泼,因此易发生腐蚀。为了增加锌合金压铸件的耐腐蚀性能,并使其表面具有装饰性,人们往往用装饰性电镀
Zinc alloy die-casting due to low melting temperature, easy to form a more complex geometric shapes of various parts. Its high precision and mechanical properties, compression and wear resistance is better, the price is cheaper. In recent years, this technology has developed rapidly in foreign countries, and the domestic use of it to replace metal products has also gradually increased. For example, the door handle on the red flag sedan, ashtray cover, horn buttons, clocks and watches and so on. Zinc alloy is the main component of zinc, accounting for about 95%. Because zinc is an amphoteric metal, it is chemically active and therefore prone to corrosion. In order to increase the corrosion resistance of zinc alloy die-casting parts, and make it decorative surface, people often use decorative plating