摘要
针对凹槽类零件感应淬火梯度硬度不合理、精度保持性差的问题,对GCr15钢滚珠丝杠滚道凹槽产生的漏磁、磁力线散逸现象进行了理论计算分析,阐述了漏磁对滚道凹槽淬硬层深的影响,提出了在丝杠凹槽处涂覆铁氧体,减少漏磁与散磁的感应淬火方法,并进行了对比淬火试验。结果表明:采用漏磁控制淬火方法,丝杠滚道硬度到达900~1000 HV0.1,等硬层深度达到3~5 mm,提高了丝杠使用寿命和精度保持性。
For the problem which induction hardening gradient hardness was not reasonable and the accuracy was poor, the leakage of magnetic flux and magnetic lines caused by grooves on GCrl5 steel ball screw raceway were analyzed by theoretical calculation, and a new induction quenching method using ferrite coating over the groove to reduce the magnetic flux leakage of magnetic lines in ball track was proposed and comparatively verified. The results show that by using such quenching treatment, the hardness of the lead screw raceway reaches 900-1000 HV0. 1, the depth of hardened layer reaches 3-5 mm, and the service life and accuracy retention of the lead screw are improved.
出处
《金属热处理》
CAS
CSCD
北大核心
2017年第9期61-65,共5页
Heat Treatment of Metals
基金
青岛经济技术开发区科技项目(2013-1-68)
工信部科技重大专项(2011ZX04014-031)
关键词
滚珠丝杠
感应淬火
漏磁控制
ball screw
induction quenching
magnetic flux leakage controlling
作者简介
高翔（1991一），男，硕士研究生，主要从事表面强化与热处理研究工作，E—mail：gxypp219@163．com。
通讯作者：孙金全，副教授，博士，联系电话：0532~6057929，E-mail：nanomaterial@163．com
