Application of vacuum low pressure carburizing heat treatment on heavy duty gears

doi:10.13251/j.issn.0254-6051.2022.06.028

Abstract

Abstract: The changes of microstructure and properties of 20CrMnTiH steel synchronizer gear hub after vacuum low pressure carburizing heat treatment were studied and compared with that by atmosphere carburizing heat treatment process. The results show that there is almost no intergranular oxidation and non-martensitic structure after vacuum carburizing heat treatment, and the control of intergranular oxidation is much better than that of atmosphere carburizing heat treatment. High pressure gas quenching is superior to oil quenching in heat treatment distortion control of the gear hub.

Key words: 20CrMnTiH steel, vacuum carburizing, microstructure, performance

CLC Number:

TG156.9

Zhu Pengkai, Xu Shen, Chen Xuyang, Zhang Xiaotian, Li Yang. Application of vacuum low pressure carburizing heat treatment on heavy duty gears[J]. Heat Treatment of Metals, 2022, 47(6): 143-147.

References

[1]付海峰, 李俏, 徐跃明, 等. 重载齿轮热处理及应用[J]. 金属热处理, 2020, 45(3): 178-185.
Fu Haifeng, Li Qiao, Xu Yueming, et al. Heat treatment technologies and its application of heavy duty gears[J]. Heat Treatment of Metals, 2020, 45(3): 178-185.
[2]赵韩, 吴其林, 黄康, 等. 国内齿轮研究现状及问题研究[J]. 机械工程学报, 2013, 49(19): 11-20.
Zhao Han, Wu Qilin, Huang Kang, et al. Status and problem research on gear study[J]. Journal of Mechanical Engineering, 2013, 49(19): 11-20.
[3]赵越超, 付莹. 齿轮材料的选择及热处理[J]. 煤矿机械, 2007, 28(10): 108-110.
Zhao Yuechao, Fu Ying. Choice of materials and heat treatment of gears[J]. Coal Mine Machinery, 2007, 28(10): 108-110.
[4]谢玲珍, 王忠, 冯显磊, 等. 不同材料不同工艺热处理的重载齿轮的弯曲疲劳性能研究[J]. 热处理, 2019, 34(5): 11-18.
Xie Lingzhen, Wang Zhong, Feng Xianlei, et al. Bending fatigue property of heavy-duty gears made of different materials and heat treated by different procedures[J]. Heat Treatment, 2019, 34(5): 11-18.
[5]陈旭阳, 王园杰, 尹承锟, 等. 细长轴类零件的高压真空气淬工艺[J]. 金属热处理, 2019, 44(3): 188-191.
Chen Xuyang, Wang Yuanjie, Yin Chengkun, et al. High pressure gas quenching process for slender shaft[J]. Heat Treatment of Metals, 2019, 44(3): 188-191.
[6]程欣. 常用齿轮材料的选择及其热处理工艺[J]. 中国科技信息, 2009(13): 139-149.
Cheng Xin. Commonly used gear materials selection and heat treatment process[J]. China Science and Technology Information, 2009(13): 139-149.
[7]陈旭阳, 丛培武, 范雷, 等. 基于饱和值调整法的真空低压渗碳工艺计算与验证[J]. 金属热处理, 2020, 45(9): 233-236.
Chen Xuyang, Cong Peiwu, Fan Lei, et al. Calculation and verification of vacuum low pressure carburizing process based on saturation adjustment method[J]. Heat Treatment of Metals, 2020, 45(9): 233-236.
[8]彭俊. 汽车渗碳齿轮新材料及其热处理工艺的研究[D]. 杭州: 浙江大学, 2003.
[9]包四平, 赵毅红, 周晓进, 等. 真空热处理对42CrMo转子显微组织和耐磨性能的影响研究[J]. 真空, 2020, 57(6): 31-34.
Bao Siping, Zhao Yihong, Zhou Xiaojin, et al. Effect of vacuum heat treatment on the microstructure and wear resistance of 42CrMo alloy rotor[J]. Vacuum, 2020, 57(6): 31-34.
[10]张玉忠. 齿轮渗碳淬火变形分析与控制[J]. 热加工工艺, 2019, 48(8): 206-209.
Zhang Yuzhong. Distortion analysis and control of carburizing and quenching of gears[J]. Hot Working Technology, 2019, 48(8): 206-209.
[11]黄星, 顾晓明, 丁盛, 等. 几种精密重载齿轮的热处理畸变控制[J]. 热处理, 2015(3): 26-30.
Huang Xing, Gu Xiaoming, Ding Sheng, et al. Heat treatment distortion controlling of several precise heavy-duty gear[J]. Heat Treatment, 2015(3): 26-30.

[1]	Jia Xinyun, Chen Shengping, Zong Cui, Tan Yongning, Huang Zhaohui. Thermal process matching of single crystal double casting guide vane of DD5 alloy [J]. Heat Treatment of Metals, 2022, 47(6): 13-18.
[2]	Tian Yaqiang, Zhao Zhihao, Yang Zixuan, Xu Haiwei, Han Yun, Zheng Xiaoping, Li Hongbin, Chen Liansheng. Effect of warm rolling temperature on microstructure and mechanical properties of medium carbon steel [J]. Heat Treatment of Metals, 2022, 47(6): 19-24.
[3]	Jiang Mingzhong, Zhao Yong, Pan Qianfu, Wu Yu, Wang Xinmin, Jiang Wenlong. Optimization of heat treatment process for F/M steel cladding pipes [J]. Heat Treatment of Metals, 2022, 47(6): 25-32.
[4]	Zhai Chuantian, Sun Youping, He Jiangmei, Meng Xiangchao, Wan Siyu. Effect of rolling deformation on microstructure and properties of Mg-Zn-Y alloy [J]. Heat Treatment of Metals, 2022, 47(6): 39-45.
[5]	Li Xiaochen, Wang Shiying, Hua Tianyu, Chen Zhidong. Effect of deep cryogenic treatment on microstructure and mechanical properties of TC4 titanium alloy during annealing [J]. Heat Treatment of Metals, 2022, 47(6): 46-53.
[6]	Chen Jiajun, Zhu Zhiyuan, Li Jianqiang, Wang Shouqian. Effect of solution treatment on microstructure and properties of Cr23Ni7Mo2Cu0.6 duplex stainless steel [J]. Heat Treatment of Metals, 2022, 47(6): 59-63.
[7]	Bai Xinghong, Zhao Xichun, Zhao Deli, Wang Dapeng, Nan Yujing. Effect of cooling rate on microstructure and mechanical properties of Cr5 steel for backup roll [J]. Heat Treatment of Metals, 2022, 47(6): 69-71.
[8]	Xu Xinquan, Fang Zhou, Liu Xinkuan, Wang Ziyan. Effect of heat treatment on low temperature brazing of copper and aluminum [J]. Heat Treatment of Metals, 2022, 47(6): 78-84.
[9]	Yan Xiang, Li Defa, Guan Jisheng, Yang Zhizheng. Effect of deformation on microstructure and properties of low-carbon microalloyed steel [J]. Heat Treatment of Metals, 2022, 47(6): 85-88.
[10]	Han Haoyuan, Yang Tao, Qiu Juan, Yang Gang, Yu Wanhua, Zhai Yuewen, Zhou Leyu. Effect of solution treatment on microstructure and hardness of TC4 alloy [J]. Heat Treatment of Metals, 2022, 47(6): 93-97.
[11]	Zhong Bin, Chen Yiqing, Li Lin, Gao Peng, San Hongyu, Ai Fangfang, Tian Xiumei. Effect of quenching oil temperature on microstructure and properties of 40CrMnMo steel drill pipe [J]. Heat Treatment of Metals, 2022, 47(6): 98-102.
[12]	Zhao Tiansheng, Fang Yu, Sun Yubin. Effect of forming speed on mechanical properties and fracture morphology of 7050 aluminum alloy forgings [J]. Heat Treatment of Metals, 2022, 47(6): 103-106.
[13]	Wang Bin, Wei Baomin. Effect of annealing temperature on microstructure and properties of T4 tinplate [J]. Heat Treatment of Metals, 2022, 47(6): 115-118.
[14]	Yang Xiaoyu, Li Xiaoxiao, Tong Jing, Hu Shukai. Effect of high pressure heat treatment on microstructure and hardness of 35CrMo steel [J]. Heat Treatment of Metals, 2022, 47(6): 119-122.
[15]	He Chunjing, Pang Qinghai, Li Jie, Yin Litao, Nie Xinlin. Effect of simulated normalizing temperature on microstructure and properties of Q355E steel forgings [J]. Heat Treatment of Metals, 2022, 47(6): 123-127.