贝氏体等温淬火工艺在轧机轴承上的应用  

The Application of Bainite Isothermal Quenching Technology to Rolling Mill Bearings

作　　者：张增歧[1] 常保良[1] 梁华[1] 王云良[2] 王世国 

机构地区：[1]洛阳轴承研究所,471039 [2]河北轧机轴承厂,054100

出　　处：《轴承》1998年第2期24-28,共5页Bearing

摘　　要：试验表明，贝氏作组织的冲击韧性和断裂韧性分别比常规淬、回火的马氏体组织提高约2倍和65％，比相同温度回火的马氏体组织提高32．9％和19．64％。GCr15钢贝氏体等温淬火的轧机轴承，解决了原马氏体淬、回火工艺而造成的套圈开裂和挡边断裂问题。经使用考核，寿命可提高66．7％～79．6％。附图3幅，表3个，参考文献5篇。Experiment showed: the impact toughness and fracture toughness of bainite structure are higher than that of conventional quenched and tempered martensite structure by about two times and 65% respectively,and also higher than that of martensite structure tempered at same temperature by 32. 9% and 19. 64% Using rolling mill bearing which is made of bainite isothernal quenched Gcr15 steel can solve the problem of ring cracking and rib fracture resulted from the original martensite quenching and tempering technology. Through operation examining,the bearing life raised mour than 66.1%.

关 键 词：轧机 轴承 贝氏体 淬火 等温淬火 

分 类 号：TG162.71[金属学及工艺—热处理]