铸铁热轧辊激光表面强化应用研究  

Applied Research of Laser Surface Hardening of Cast Iron Hot Roll

作　　者：许巧玉[1] 

机构地区：[1]新疆大学机械工程学院,新疆乌鲁木齐830047

出　　处：《铸造技术》2012年第10期1174-1175,共2页Foundry Technology

摘　　要：运用激光表面强化理论和技术,对NiCrMo半冷硬铸铁热轧辊材料进行激光相变硬化和熔凝处理后,表层分别得到针状马氏体和莱氏体白口组织,硬度由原来的51 HRC提高到70 HRC左右,材料的耐磨性提高。Applying the theory and technology of laser surface hardening,NiCrMo chilled cast iron hot roll material was processed by laser transformation hardening and surface melting.The results show that the white organizations of acicular martensite and ledeburite are obtained in the surface layer,the hardness is increased from 51 HRC to about 70 HRC,and the wear resistance and other performance of the materials are also improved.

关 键 词：铸铁 热轧辊 激光强化 

分 类 号：TG174.44[金属学及工艺—金属表面处理]