重型汽车用渗碳齿轮检验方法的分析研究

摘要

变速器和车桥等部件中的传动齿轮是保证汽车行驶安全的核心部件，齿轮的组织性能的检验是其质量控制的重要保证。本文就重型汽车渗碳齿轮的化学成分、金相组织、碳化物评级、残余奥氏体和马氏体评级、渗碳淬火有效硬化层深、表面和心部硬度等检验方法和要求进行了详细的研究分析，可为重型汽车用渗碳齿轮的设计、制造及检验提供参考依据。%Driving gears are key components to ensure the running safety of automobiles, and the tests of the mierostrueture properties of gears are the important guarantee of its quality eontrol. Aiming at carburized gears for heavy duty trucks, the paper in detail studied the testing methods and demand of the chemical composition, mierostrueture, carbide rating, retained anstenite and martensite rating, carburizing quenching effectively hardening depth, surface and core hardness. The results can provide a reference basis the design, manufacturing and test of carburizing gears for heavy duty trucks.