LNG汽车发动机稳压器用钢的热处理及性能优化  

Heat Treatment and Performance Optimization of Steel for LNG Automotive Engine Stabilizer

作　　者：任萍丽[1] 傅华娟[1] 梁寿材 KEN Pingli;FU Huajuan;LIANG Shoucai(Changzhou Vocational Institute of Mechatronic Technology, Changzhou 213164, China;Changzhou Langgao Auto Parts Co., Ltd., Changzhou 213164, China)

机构地区：[1]常州机电职业技术学院,江苏常州213164 [2]常州朗高汽车部件有限公司,江苏常州213164

出　　处：《热加工工艺》2018年第12期183-186,共4页Hot Working Technology

基　　金：常州机电职业技术学院科研课题(2016ZDKJ02)

摘　　要：采用不同的正火温度和时间对LNG汽车发动机稳压器用16MnD5钢进行了热处理,并进行了耐磨损性能和冲击性能测试。结果表明：随正火温度从850℃升高至970℃（正火时间50 min）或正火时间从30 min增加至70 min（正火温度940℃）,试样的室温耐磨损性能、高温耐磨损性能和冲击性能均呈现先提高后下降的变化趋势。LNG汽车发动机稳压器用钢的最佳热处理工艺参数为：940℃正火温度和50 min正火时间。The 16MnD5 steel for LNG automotive engine stabilizer was heat- treated by using different normalizing temperatures and time. And the wear resistance and impact property of the samples were tested and analyzed. The results show that the wear resistance at room and high temperatures and impact property firstly increase and then decrease with normalizing temperature increasing from 850 ℃ to 970 ℃ （normalizing time of 50rain） or normalizing time increasing from 30 rain to 70 rain （normalizing temperature of 940 ℃ ）. The optimized normalizing temperature and normalizing time are 940 ℃ and 50 min, respectively.

关 键 词：正火温度 正火时间 16MND5钢 耐磨损性能 冲击性能 

分 类 号：TG156.4[金属学及工艺—热处理]