金属热处理 ›› 2021, Vol. 46 ›› Issue (3): 113-115.DOI: 10.13251/j.issn.0254-6051.2021.03.023

• 工艺研究 • 上一篇    下一篇

热处理对铬钼钢刀具畸变的影响

郑业方1, 姜影1, 谢小军2, 夏玉亮1, 李泉1, 游菲1   

  1. 1.株洲中车天力锻业有限公司, 湖南 株洲 412001;
    2.湖南鑫聚利有限公司, 湖南 湘潭 411228
  • 收稿日期:2020-09-13 出版日期:2021-03-25 发布日期:2021-05-08
  • 作者简介:郑业方(1977—),男,高级工程师,硕士,主要研究方向为热处理及表面处理,E-mail:zhyf0518@hotmail.com

Effect of heat treatment on distortion of Cr-Mo steel tool

Zheng Yefang1, Jiang Ying1, Xie Xiaojun2, Xia Yuliang1, Li Quan1, You Fei1   

  1. 1. Zhuzhou CRRC Timly Forgen Co., Ltd., Zhuzhou Hunan 412001, China;
    2. Hunan Xinjuli Machinery Co., Ltd., Xiangtan Hunan 411228, China
  • Received:2020-09-13 Online:2021-03-25 Published:2021-05-08

摘要: 对25CrMo、30CrMo和42CrMo钢刀具进行了860 ℃淬火工艺试验,且对42CrMo钢刀具进行860、850、830 ℃淬火及预热+830 ℃淬火试验,对比了刀槽的畸变量。结果表明:随着碳含量增加,低中碳铬钼钢刀槽860 ℃淬火时刀槽畸变量呈上升趋势,最大畸变量在-0.15~+0.15 mm波动。随着淬火温度的降低,42CrMo钢刀槽畸变量下降到-0.10~+0.09 mm,增加预处理对刀槽畸变量无显著影响。

关键词: 铬钼钢, 畸变, 热处理, 碳含量

Abstract: For 25CrMo, 30CrMo and 42CrMo steel tools, quenching process at 860 ℃ was carried out, and the 42CrMo steel tool was tested for 860, 850, 830 ℃ quenching and preheating+ 830 ℃ quenching, for comparing the distortion data of the tool groove. The results show that with carbon content increasing, the distortion of low- and medium-carbon chromium-chromium steel tool groove quenched at 860 ℃ increases, and the max distortion is fluctuated between -0.15 and +0.15 mm. With quenching temperature decreasing, the distortion of 42CrMo steel tool groove is drops to -0.10-+0.09 mm.

Key words: Cr-Mo steel, distortion, heat treatment, carbon content

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