渗碳淬火盆齿致裂因素分析研究  

Analysis of Cracks Factors in Gear of Carburizing & Quenching

作　　者：戴素江[1] 盛继生[1] 

机构地区：[1]金华职业技术学院,浙江金华321007

出　　处：《金华职业技术学院学报》2007年第4期5-7,27,共4页Journal of Jinhua Polytechnic

摘　　要：大模数重载汽车主减速器盆形齿轮经渗碳淬火后,齿轮齿面经常会出现裂纹。齿轮在渗碳前的预热处理工艺和渗碳工艺参数以及淬火处理,对齿轮的成分、组织及应力都会产生影响。本文通过不同工艺参数热处理后齿轮的金相检验,分析了22CrMoH钢制重载汽车盆形齿轮热处理致裂的原因,探讨解决途径和方法。Cracks frequently generated in basin gear of big modulus main reducer used in heavy load truck after carbonizing and quenching.The heat treatment process before the carbonizing,carbonization process parameter and the quench treatment all influenced the components,structure and stress in gear.In this paper,a metallographic examination of the gear was conducted after the heat treatment with different process parameters,and a study was made to investigate the factors that caused cracks in the 22CrMoH steel basin gear used in heavy load truck after the heat treatment.At the same time,several countermeasures were proposed.

关 键 词：盆形齿轮 工艺参数 热处理 裂纹 

分 类 号：TG156[金属学及工艺—热处理]