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

doi:10.13251/j.issn.0254-6051.2021.06.049

Heat Treatment of Metals ›› 2021, Vol. 46 ›› Issue (6): 250-252.DOI: 10.13251/j.issn.0254-6051.2021.06.049

• FAILURE ANALYSIS • Previous Articles Next Articles

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

Mi Pei¹, Sun Yongpeng², Zhang Yong²

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

Abstract

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

CLC Number:

TG157

Mi Pei, Sun Yongpeng, Zhang Yong. Causes and improvement methods of induction quenching cracks in mining toothed rail[J]. Heat Treatment of Metals, 2021, 46(6): 250-252.

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

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