【摘要】 介绍了5CrMnMo钢的化学成分、热处理工艺、锻模的工作条件及其失效形式(型腔棱边磨损、型腔塌陷及冷热疲劳裂纹),并介绍了模具失效原因及及一些防止措施。通过改进热处理工艺,提高了模具使用寿命。更多还原

【Abstract】 The 5CrMnMo steel,including the chemical composition,the heat treatment technology,the forging die working condition,and the invalidation form(such as the cavity arris wear,the cavity subsidence,the cold and the heat fatigue crack) was introduced. The some cause and precautions were introduced too. By improving the heat treatment technology,the mould life increases.更多还原