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一、概论压铸模的工作寿命受多种因素的影响,如设计、材料、加工工艺、使用、压铸机性能、压铸件本身的设计等。由于压铸件的精度、表面质量要求不同,其他有关工艺条件不同,即使外形相似、重量相近,其模具寿命也很难互作比较。一般而言,模具的工作寿命并非一个固定值,而是一个范围。1979年国内铝合金压铸模平均工作寿命约3～5万次,1981、1983年,铝合金压铸模寿命水平已提高到5～7万次。通常,把实际寿命低于平均工作寿命下限50％的模具称为早期失效,高于平均工作寿命上限30％的模具称为长效。
First, an overview Die casting mold life by a variety of factors, such as design, materials, processing technology, use, die-casting machine performance, die-casting itself design. Due to the accuracy of die casting, surface quality requirements are different, the other relevant process conditions are different, even if the shape is similar to the weight of similar mold life is difficult to interact with each other. In general, the working life of the mold is not a fixed value, but a range. In 1979, the average working life of domestic aluminum alloy die-casting molds was about 3 to 50,000 times. In 1981 and 1983, the life-span of aluminum alloy die-casting molds had been raised to 50,000-70,000. Normally, a mold with an actual life of less than 50% of the average working life is called early failure, and a mold with a working life of 30% above the average is called a long-term.