钢件加热到临界点Ac3或Acm以上的温度，保温一定的时间（见奥氏体化），然后在空气中冷却的金属热处理工艺。其工艺简单，操作方便，生产周期短，成本低，是一种经济的金属热处理工艺。它可作为预备热处理，亦可作为最终热处理而广泛应用于工业生产。
Q 460e钢正火可以达到某些中碳调质钢的力学性能要求。
Mechanical properties of normalized Q460E could reach the requirement of some medium carbon quenched and tempered steel.
叙述了正火工艺对中碳非调质钢组织和力学性能的影响。
In this paper, the effect of normalization process on microstructure and mechanical properties of medium carbon non-quenched and tempered steels is introduced.
对含有内部裂纹的45钢试样采取了不同温度一次加热正火处理和二次加热正火处理，研究了其内部裂纹愈合的可能性。
The possibility of inner microcrack healing was studied by normalizing the 45 steel samples containing inner crack for one time and two times respectively.
应用推荐