20Cr2Ni4A钢转向齿轮渗碳淬火工艺改进

doi:10.13251/j.issn.0254-6051.2024.08.033

金属热处理 ›› 2024, Vol. 49 ›› Issue (8): 189-194.DOI: 10.13251/j.issn.0254-6051.2024.08.033

20Cr2Ni4A钢转向齿轮渗碳淬火工艺改进

赵厚锐¹, 刘克², 樊朋煜³, 欧阳雪枚⁴, 杨兵², 翟鹏远³

1.中国航发长江动力有限公司, 湖南岳阳 414001;
2.江麓机电集团有限公司, 湖南湘潭 411100;
3.中国兵器工业新技术推广研究所, 北京 100089;
4.湘潭大学材料科学与工程学院, 湖南湘潭 411105

收稿日期:2024-03-09 修回日期:2024-07-01 出版日期:2024-08-25 发布日期:2024-09-27
作者简介:赵厚锐(1982—),男,高级工程师,主要研究方向为材料加工,E-mail:zhaohourui1234@sina.com

Improvement of carburizing and quenching process for 20Cr2Ni4A steel steering gear

Zhao Hourui¹, Liu Ke², Fan Pengyu³, Ouyang Xuemei⁴, Yang Bing², Zhai Pengyuan³

1. China Aerospace Changjiang Power Co., Ltd., Yueyang Hunan 414001, China;
2. Jianglu Machinery Electronics Group Co., Ltd., Xiangtan Hunan 411100, China;
3. China North Advanced Technology Gener Lization Institute, Beijing 100089, China;
4. School of Materials Science and Engineering, Xiangtan University, Xiangtan Hunan 411105, China

Received:2024-03-09 Revised:2024-07-01 Online:2024-08-25 Published:2024-09-27

摘要/Abstract

摘要： 针对20Cr2Ni4A钢齿轮渗碳淬火后椭圆度、平面翘曲度过大的问题,基于有限元模拟方法,对渗碳淬火装炉方式,机加余量和淬火压力进行优化,并进行了试验验证。结果表明,装炉方式、机加余量和淬火压力对转向齿轮渗碳淬火过程应力场和畸变场影响很大,采用吊放装炉比平放装炉畸变更小,腹板厚度增加可以减小畸变,当腹板增厚至18 mm,渗碳后椭圆度能控制到0.19 mm。压淬外环压力为3 MPa时,淬火后椭圆度能控制到0.16 mm。

关键词: 模拟计算, 转向齿轮, 渗碳, 应力场, 淬火畸变

Abstract: Aiming at the problem of excessive plane warping of 20Cr2Ni4A steering gears after carburizing and quenching, the optimization of the pressure quenching process was guided by finite element simulation carburizing and quenching simulation, and experimental verification was carried out. The results show that the loading method, machining allowance, and quenching pressure have a significant impact on the stress and distortion fields during the carburization and quenching process of the steering gear. The distortion is smaller when using hanging loading than flat loading. Increasing the thickness of the web plate can reduce the distortion. When the web plate thickens to 18 mm, the ellipticity after carburization can be controlled to 0.19 mm. When the outer ring pressure of pressure quenching is 3 MPa, the ellipticity after quenching can be controlled to 0.16 mm.

Key words: simulation calculation, steering gear, carburizing, stress field, quenching distortion

中图分类号:

TG142.1

赵厚锐, 刘克, 樊朋煜, 欧阳雪枚, 杨兵, 翟鹏远. 20Cr2Ni4A钢转向齿轮渗碳淬火工艺改进[J]. 金属热处理, 2024, 49(8): 189-194.

Zhao Hourui, Liu Ke, Fan Pengyu, Ouyang Xuemei, Yang Bing, Zhai Pengyuan. Improvement of carburizing and quenching process for 20Cr2Ni4A steel steering gear[J]. Heat Treatment of Metals, 2024, 49(8): 189-194.

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20Cr2Ni4A钢转向齿轮渗碳淬火工艺改进

Improvement of carburizing and quenching process for 20Cr2Ni4A steel steering gear

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