渗氮处理在重载齿轮上的应用进展

doi:10.13251/j.issn.0254-6051.2023.03.018

摘要/Abstract

摘要： 目前重载齿轮常用的表面热处理工艺有渗碳淬火、感应淬火以及渗氮处理等,渗氮处理由于畸变小、工序简单等优点在工业生产上具有很大的优势和广阔的应用前景。通过增加渗层深度以及提高基体硬度能够有效提高渗氮齿轮的承载能力,从而扩大渗氮处理在重载齿轮上的应用。介绍了渗氮处理对齿轮的接触疲劳强度和弯曲疲劳强度的影响,以及基体性能对渗氮工艺的影响,回顾了渗氮齿轮的研究进展,如渗层可控离子渗氮、稀土催渗、时效硬化渗氮钢等,指出提高渗氮齿轮承载能力的途径为,深入进行渗氮齿轮的基础性研究,提高渗氮过程控制水平以及积极开发新工艺等。

关键词: 重载齿轮, 渗氮处理, 深层可控离子渗氮, 基体性能

Abstract: Commonly used surface heat treatment processes of heavy-duty gears include carburizing and quenching, induction hardening and nitriding process. Nitriding process has great advantages and broad application prospects in industrial production because of its advantages of small distortion and simple process. By increasing the depth of the nitrided layer and the hardness of the matrix, the bearing capacity of nitrided gears can be effectively improved, so as to expand the application of nitriding treatment in heavy-duty gears. Influence of nitriding treatment on the contact fatigue strength and bending fatigue strength of gears was introduced, as well as the influence of matrix properties on nitriding process, the research progress of nitrided gears was reviewsed, such as deep controlled ion nitriding, rare earth accelerated nitriding, aging hardening nitriding steel. It was pointed out that the ways to improve the loading capacity of nitrided gears are as follows: to carry out more in-depth basic research on nitrided gear, to improve the control level of nitriding process and to develop the new technology more actively.

Key words: heavy duty gear, nitriding treatment, deep controllable ion nitriding, matrix properties

中图分类号:

TG162.73

陈治, 李宝奎, 卢金生, 许鸿翔, 张衡. 渗氮处理在重载齿轮上的应用进展[J]. 金属热处理, 2023, 48(3): 104-111.

Chen Zhi, Li Baokui, Lu Jinsheng, Xu Hongxiang, Zhang Heng. Application and progress of nitriding treatment in heavy duty gears[J]. Heat Treatment of Metals, 2023, 48(3): 104-111.

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