局部回火 meaning in English
selective tempering
Examples
- As shown in the figure left , the inner ring of the self - contained bearing is hardened in the race - way and surroundings part where hardening is necessary , the area of set screw hole of the inner ring has been templed by high temperature after hardened , it has higher toughness and impact clasticity
如左图所示，内圈沟道及其周围需要淬硬的部分已经过正常淬火，装配紧定镙钉的内圈伸长端则经过高温局部回火而保持韧性及抗冲击性。