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根据大型重载齿轮的承载和失效特点，介绍了它对深层渗碳层质量的要求，并结合渗碳过程中碳传递和扩散、碳化物形成和长大等机理，分析了影响渗碳层质量的各种因素；提出了控制表面碳浓度、碳浓度分布和碳化物形态的方法和途径。
According to the bearing and failure characteristics of large heavy-duty gear, the requirements for the quality of deep carburized layer are introduced. Combined with the mechanism of carbon transfer and diffusion, formation and growth of carbides during carburization, the influence of the quality of carburized layer The methods and ways to control the surface carbon concentration, carbon concentration distribution and carbide morphology were proposed.