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在开发新技术新工艺的同时,对一些常用传统工艺重新进行审查,拟订能提高质量和经济效益的新工艺,是发展热处理工艺的一个重要方面。现行的热处理工艺,从材料选择到拟订具体工艺和流程,都不同程度地存在问题。因此,针对具体零件的实际服役条件,应该修改或重新拟订某些行使多年的老工艺,使之更为合理。为了取得强度和韧性的良好配合,钢件淬火后都要回火。然而,零件应有的性能指标取决于服役条件,有些
While developing new technology and new technology, it is an important aspect to develop the heat treatment technology to reexamine some commonly used traditional technologies and develop new technologies that can improve the quality and economic benefits. The current heat treatment process, from the choice of materials to the preparation of specific processes and processes, to varying degrees, there are problems. Therefore, some specific old-age craft should be modified or redrafted to make it more reasonable for actual service conditions of specific parts. In order to achieve good strength and toughness, steel must be tempered after quenching. However, the proper performance specifications of the parts depend on service conditions, and some