金属热处理 ›› 2021, Vol. 46 ›› Issue (6): 21-23.DOI: 10.13251/j.issn.0254-6051.2021.06.004

• 轴承 • 上一篇    下一篇

淬火后清洗和冷处理工艺对9Cr18钢轴承套圈残留奥氏体含量的影响

安敏, 付中元, 袁超, 夏云志   

  1. 中国航发哈尔滨轴承有限公司, 黑龙江 哈尔滨 150025
  • 收稿日期:2020-12-28 出版日期:2021-06-25 发布日期:2021-07-21
  • 作者简介:安 敏(1982—),女,工程师,主要研究方向为轴承热处理工艺,E-mail:snow_candy1982@163.com。

Effects of post-quenching cleaning and cold treatment process on retained austenite content of 9Cr18 steel bearing ring

An Min, Fu Zhongyuan, Yuan Chao, Xia Yunzhi   

  1. AECC Harbin Bearing Co., Ltd., Harbin Heilongjiang 150025, China
  • Received:2020-12-28 Online:2021-06-25 Published:2021-07-21

摘要: 分析了9Cr18钢轴承套圈在相同淬、回火工艺条件下,油淬后清洗工艺、冷处理工艺以及清洗-冷处理间隔时间对产品最终残留奥氏体含量的影响。结果表明,油淬后清洗温度越高,清洗-冷处理间隔时间越长,则残留奥氏体含量越高。过低的冷处理温度对残留奥氏体的降低起相反作用,推荐冷处理温度-70~-80 ℃。

关键词: 高碳铬不锈钢9Cr18, 轴承套圈, 残留奥氏体, 清洗方式, 冷处理

Abstract: Effects of cleaning process after oil quenching, subzero treatment process and interval between cleaning and subzero treatment on the final retained austenite content of 9Cr18 steel bearing ring were analyzed in view of the same quenching and tempering conditions. The results show that the higher the cleaning temperature after oil quenching, and the longer the interval between cleaning and subzero treatment, the higher the retained austenite content. However, the content of retained austenite increases when the temperature of subzero treatment is much too low, so the recommended subzero treatment temperature should be between -70 ℃ and -80 ℃.

Key words: high carbon chromium stainless bearing steel 9Cr18, bearing ring, retained austenite, cleaning method, subzero treatment

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