热处理工艺对T8钢表面粗糙度的影响  

Effect of heat treatment process on surface roughness of T8 steel

作　　者：郝少祥 王丽娟 HAO Shaoxiang;WANG Lijuan(College of Mechanical Engineering,Henan University of Engineering,Zhengzhou 451191,China;School of Electro-Mechanical Engineering,Zhengzhou University of Industry Technology,Zhengzhou 451100,China)

机构地区：[1]河南工程学院机械工程学院,河南郑州451191 [2]郑州工业应用技术学院机电学院,河南郑州451100

出　　处：《河南工程学院学报（自然科学版）》2018年第1期61-64,共4页Journal of Henan University of Engineering：Natural Science Edition

摘　　要：T8钢经正火、退火、球化退火、淬火+中温回火、正火+高温回火5种工艺处理,经机械加工后可获得不同的表面粗糙度.其中,760℃×50 min正火+600℃×40 min回火工艺测得的粗糙度(Ra与Rz)值最小;740℃×50 min加热,随炉冷却工艺测得的粗糙度(Ra与Rz)值次之;760℃×70 min加热→690℃×60 min等温、随炉冷却工艺测得的粗糙度(Ra与Rz)值最大;其余工艺测得的结果处在中间.After five process treatment of normalizing,annealing,spheroidizing annealing,quenching and middle tempering,normalizing and high tempering for T8 steel,then it was treated under machining.The result of roughness was measured.minimum roughness value(Ra,Rz)was obtained after normalizing at 760℃for 50 min and tempering at 600℃for 40 min,lower roughness value(Ra,Rz)was obtained after heating at 740℃for 50min and cooling in the furnace,maximum roughness value(Ra,Rz)was obtained after heating at 760℃for 70 min,and keeping at 690℃for 60 min,then cooling in the furnace,the rest was in the middle of whole value.

关 键 词：热处理 T8钢 粗糙度 

分 类 号：TG156[金属学及工艺—热处理]