一、前言热处理是一种热加工工艺方法,它能改变工件内部的组织和性能,所以它对产品的质量有很大影响。随着我国工业的迅速发展,热处理的作用愈来愈受到重视。现在可以说,大多数从事设计工艺工作的工人同志和技术人员,都在不同程度上认识到正确选择材料与热处理的重要性。但是,还不是每个人都能做到这一点。根据对机械损坏实例的分析, First, the preface Heat treatment is a thermal processing technology, it can change the internal organization and performance of the workpiece, so it has a great impact on the quality of the product. With the rapid development of China’s industry, the role of heat treatment more and more attention. Now it can be said that most of the working comrades and technicians engaged in the design work are to varying degrees, aware of the importance of the correct choice of materials and heat treatment. However, not everyone can do this. According to the analysis of mechanical damage examples,