热处理工艺: 正火处理
Heat Treatments: Normalizing

特性:
提高材料硬度，有助于切削加工等。
细化晶粒，消除材料中的网状碳化物，并做为后续淬火工序做组织准备。
用于淬火返修件，消除淬火应力，细化组织，防止工件重新淬火时产生变形与开裂。

Properties:
Improve the material hardness, facilitate the cutting and machining operations.
Refine the grains and eliminate the carbide network in the material for the preparations of the subsequent quenching process.
For the reworked parts, it can relieve the quenching stresses, refine the structures, prevent the deformations and cracking caused by re-quenching.