Generally used in quenched and tempered state, can also carry on the carbonitriding and high-frequencysurfacehardening.
一般在调质状态下使用，还可以进行碳氮共渗和高频表面淬火处理。
2
Grinding hardening, the technology of hardening steel piece surface with grinding heat instead of high or medium frequency induction hardening heat, can integrate grinding surface hardening.
The backwashof low frequency, high compressive strength, no powder, no hardening, high activity and large specific surface area, good regeneration effect.