成型模 forming die
- 引起脆性断裂的原因是成型模产生了回火脆性。
The fracture is brittle fracture, and the reason is that material of forming dies takes place the temper brittleness. - 结果表明,成型模裂纹断口形态呈沿晶特征,沿晶面上有细小析出物,为脆性断裂。
The results show that the fracture surface is characterized by a combination of most intergranular brittle regions and a few cleavage regions, and there are finer precipitations on grainboundaries. - 摘要采用化学成分分析、金相检验和断口分析等方法,对开裂的成型模进行了分析。
The fracture reasons of forming dies, which cracked during forming process of cranks, were analyzed by means of chemical composition analysis, metallographic examination and fracture analysis in this paper.
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