金属热处理 ›› 2021, Vol. 46 ›› Issue (6): 250-252.DOI: 10.13251/j.issn.0254-6051.2021.06.049

• 失效分析 • 上一篇    下一篇

矿用齿轨感应淬火裂纹产生原因及改进方法

米佩1, 孙永鹏2, 张勇2   

  1. 1.宁夏天地奔牛实业集团有限公司, 宁夏 银川 753000;
    2.宁夏天地重型装备科技有限公司, 宁夏 石嘴山 753001
  • 收稿日期:2021-02-25 出版日期:2021-06-25 发布日期:2021-07-21
  • 作者简介:米 佩(1983—),女,高级工程师,硕士,主要研究方向为热处理工艺技术开发和新材料应用,E-mail:mipei2015@163.com。
  • 基金资助:
    中煤科工面上项目(2020-TD-MS005)

Causes and improvement methods of induction quenching cracks in mining toothed rail

Mi Pei1, Sun Yongpeng2, Zhang Yong2   

  1. 1. Ningxia Tiandi Benniu Industrial Group Co., Ltd., Yinchuan Ningxia 753000, China;
    2. Ningxia Tiandi Heavy Equipment Technology Co., Ltd., Shizuishan Ningxia 753001, China
  • Received:2021-02-25 Online:2021-06-25 Published:2021-07-21

摘要: 矿用齿轨在齿柱感应淬火过程中发生齿柱部位开裂情况,从齿轨材料化学成分、感应淬火前原始组织、裂纹宏观、微观组织、感应淬火工艺参数等方面对开裂原因进行了分析,并通过优化加热方式及冷却方式解决了齿轨齿柱感应淬火开裂问题。

关键词: 齿轨, 感应淬火, 淬火裂纹, 改进方法

Abstract: Cracks occurred in the induction quenching process of the tooth column for the mining toothed rail, the reasons were analyzed from the aspects of the chemical composition, the original microstructure, the macro and micro structures of the crack, and the process parameters. The results show that the problem of induction quenching cracking of the tooth column and toothed rail is solved by optimizing heating mode and cooling mode.

Key words: toothed rail, induction hardening, quenching crack, improvement method

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