冷轧工作辊表面硬化机理分析与淬火工艺研究  

Study on Surface Hardening Mechanism Analysis and Quenching Process of Cold Rolling Work Roll

作　　者：杨顺田[1] 

机构地区：[1]四川工程职业技术学院,四川德阳618000

出　　处：《热加工工艺》2015年第18期227-231,共5页Hot Working Technology

基　　金：四川省科技支撑计划(2012GZX0012)

摘　　要：表面硬化层深度决定了冷轧工作辊的性能与寿命。通过对表面硬化层机理分析和对双工频、工频三感应器、无铁芯感应器(及空气绝热膨胀制冷的深冷处理系统)等多种感应加热淬火方法的对比研究,改进冷轧工作辊的感应加热淬火工艺方案,采用无铁芯高感应器加热淬火,硬化层(Hs≥90)深度从25 mm以下提高到50 mm以上,性能改善明显,寿命大大延长。The depth of surface hardened layer determines the performance and the service life of cold rolling work roll,according to surface hardening mechanism analysis and comparative study on the way of induction heating quenching on dual frequency and three-phase sensor,coreless high sensor and deep cryogenic treatment of air adiabatic expansion cooling,the induction heating quenching process of cold rolling work roll was improved,the depth of hardening layer（Hs≥90） increases from25 mm up to 50 mm using the coreless high sensor quenching,which greatly improves the performance and extends the service life.

关 键 词：耐粗化性能 耐磨性能 无铁芯高感应器 残余奥氏体 低温处理 

分 类 号：TG156.3[金属学及工艺—热处理]