减少齿条淬火产生的弯曲变形,是热处理中的一个技术难题。我厂有一个零件,该零件材料为45钢,要求齿表面淬硬为HRC50～60,淬层深1～2毫米。淬火后直线度为0.07毫米。我们用GP100C2型高频炉进行表面淬火,结果最大弯曲达2毫米。后来我们采取了下列措施,弯曲量大大减小。 1.选用合适的淬火感应圈,尽量减少齿区以外感应受热面。 Reduce the bending deformation of the rack quenching, heat treatment is a technical problem. I have a factory part, the parts of the material is 45 steel, requiring tooth surface hardened HRC50 ~ 60, deep quenching 1 to 2 mm. Straightness after quenching 0.07 mm. Surface hardening with a GP100C2 HF furnace resulted in a maximum bend of 2 mm. Later, we took the following measures, greatly reducing the amount of bending. 1. Select the appropriate quenching induction ring, minimizing the induction area outside the tooth surface heating.