基于感应回火的梯度性能刀圈的制备工艺

doi:10.13251/j.issn.0254-6051.2023.07.021

金属热处理 ›› 2023, Vol. 48 ›› Issue (7): 124-130.DOI: 10.13251/j.issn.0254-6051.2023.07.021

基于感应回火的梯度性能刀圈的制备工艺

赵何明

中铁建大桥工程局集团第二工程有限公司, 广东深圳 518083

收稿日期:2023-04-19 修回日期:2023-06-09 出版日期:2023-07-25 发布日期:2023-09-04
作者简介:赵何明(1985—),男,高级工程师,硕士,主要研究方向为隧道施工技术及装备,E-mail:250844786@qq.com。

Manufacturing technology of cutter ring with gradient properties based on induction tempering

Zhao Heming

China Railway Construction Bridge Engineering Bureau Group, Second Engineering Co., Ltd., Shenzhen Guangdong 518083, China

Received:2023-04-19 Revised:2023-06-09 Online:2023-07-25 Published:2023-09-04

摘要/Abstract

摘要： 采用感应加热方法对刀圈进行局部高温回火处理,研究了回火温度以及感应回火时间对H13E钢刀圈微观组织、硬度、冲击吸收能量以及抗拉强度和塑性的影响。结果表明,在580～680 ℃范围内回火,刀圈的组织为回火索氏体,且随着回火温度的升高,析出的粒状碳化物数量增加,刀圈硬度逐渐降低,冲击吸收能量则逐渐升高。随着感应回火时间的增加,刀圈微观组织、硬度和冲击吸收能量初始阶段变化显著,在回火时间大于30 min后,组织和性能趋于稳定。采用640 ℃保温30 min的工艺对刀圈进行了感应回火处理,测试了刀圈截面硬度分布和不同位置的组织状态,证明了感应回火制备梯度性能刀圈方法和工艺的可行性。

关键词: H13E钢, 刀圈, 感应回火, 热处理, 梯度性能

Abstract: Induction heating method of local high temperature tempering was applied to cutter ring of H13E steel, and the influences of tempering temperature and induction tempering time on microstructure, hardness, impact absorbed energy and tensile strength were studied. The results show that the microstructure is tempered sorbite when tempered in the range of 580-680 ℃, and with increase of the tempering temperature, the amount of precipitated granular carbide increases, the hardness of cutter ring decreases gradually, while the impact absorbed energy increases gradually. With the increase of induction tempering time, the microstructure, hardness and impact absorbed energy of cutter ring change significantly at the beginning, and the properties tend to be stable when the tempering time is longer than 30 min. After induction tempering at 640 ℃ for 30 min, and then testing the hardness distribution of cutter ring section and microstructure at different positions, the feasibility of the method and process of cutter ring with gradient properties by induction tempering is proved.

Key words: H13E steel, cutter ring, induction tempering, heat treatment, gradient property

中图分类号:

TG156.5

赵何明. 基于感应回火的梯度性能刀圈的制备工艺[J]. 金属热处理, 2023, 48(7): 124-130.

Zhao Heming. Manufacturing technology of cutter ring with gradient properties based on induction tempering[J]. Heat Treatment of Metals, 2023, 48(7): 124-130.

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基于感应回火的梯度性能刀圈的制备工艺

Manufacturing technology of cutter ring with gradient properties based on induction tempering

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