液压油缸热处理工艺的改进  

Improvement of Heat Treatment Process of Hydraulic Oil Cylinder

作　　者：张宏伟 王茜[2] 王艳丽[3] 郑喜平 

机构地区：[1]焦作市质量技术监督检验测试中心总工程师办公室,河南焦作454000 [2]商丘工学院机械工程学院,河南商丘476000 [3]河南理工大学万方科技学院(郑州校区)信息科学与工程系,河南郑州450000 [4]郑州精益达汽车零部件有限公司底盘事业部,河南郑州450000

出　　处：《热加工工艺》2016年第14期196-197,200,共3页Hot Working Technology

基　　金：河南省质监局科技计划项目(2015zj07)

摘　　要：对液压油缸的热处理工艺进行了改进,并对使用改进工艺生产的液压油缸的显微组织和力学性能进行了分析。结果表明:改进工艺的液压油缸的显微组织是马氏体+铁素体;冲击断口有大量的韧窝,具有良好的抗冲击性能;其力学性能超过了原始工艺生产的油缸力学性能。The heat treatment process of hydraulic oil cylinder was improved. And the microstructure and mechanical properties of the hydraulic oil cylinder produced by the improved process were analyzed. The results show that the microstructure of the hydraulic oil cylinder produced by the improved process is martensite＋ferrite;the impact fracture surface has a lot of dimples, which has good anti impact performance;the mechanical properties exceed those of the oil cylinder produced by the original technology.

关 键 词：液压油缸 27SIMN钢 冲击韧性 显微组织 

分 类 号：TG142.1[一般工业技术—材料科学与工程] TG161[金属学及工艺—金属材料]