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概况建国以来,在模具生产方面,取得了不少成就,然而问题亦不少。主要是模具寿命低,消耗大。要降低模具消耗,首先要弄清消耗大的原因,从而可对症下药。近二年中,我们收集了上海地区27个工厂早期失效的模具共90副,研究其失效原因。本文仅举出部分实例加以说明,以供参考。这90副早期失效模具分属17种牌号的材料,其中钢模占14种,除T10外都是合金钢,另外有色金属1种,粉末合金2种。表1是90副模具失效原因的统计,表2是失效模具按材料种类的统计。
Overview Since the founding of the People’s Republic of China, a great deal of achievements have been made in the production of molds. However, there are many problems. Mainly mold life is low, expensive. To reduce mold consumption, we must first understand the reasons for consumption, which can be the right medicine. In the past two years, we collected 90 molds that failed early in 27 factories in Shanghai and studied the causes of failure. This article only gives some examples to illustrate, for reference. The 90 pairs of early failure die belonged to 17 kinds of grades of materials, of which 14 kinds of steel mold, except T10 are all alloy steel, another non-ferrous metals 1, 2 kinds of alloy powder. Table 1 is 90 pairs of mold failure statistics, Table 2 is the failure of the mold according to the type of material statistics.