80WVRe钢丝双相区球化退火工艺的优化  

Optimization of Spheroidizing Annealling Process in Dual-phase Region of 80WVRe Steel Wire

作　　者：葛潇琛[1] 王伯健[1] 刘世锋[1,2] 任晨辉[1] 曹猛[1] 

机构地区：[1]西安建筑科技大学冶金工程学院,西安710055 [2]西北有色金属研究院,西安710016

出　　处：《机械工程材料》2015年第9期32-36,共5页Materials For Mechanical Engineering

基　　金：陕西省教育厅专项科研项目

摘　　要：采用正交试验法对冷拔至不同直径80WVRe钢丝的双相区球化退火工艺进行优化。结果表明:奥氏体化温度、等温时间、等温温度、保温时间对Ф3.39mm钢丝退火后硬度的影响程度相当,等温时间对Ф1.91mm钢丝退火后硬度的影响程度明显大于其它三因素;对于Ф3.39mm钢丝,当奥氏体化温度为760℃、保温时间为60min、等温温度为690℃、等温时间为360min时,组织中碳化物的均匀性及圆整度最佳,此时的硬度为175HV0.5;对于Ф1.91mm钢丝,当奥氏体化温度为760℃、保温时间为90min、等温温度为690℃、等温时间为240min时,组织中碳化物的均匀性及圆整度最佳,此时的硬度为177HV0.2。Adopting orthogonal test to research the spheroidizing annealling process in dual-phase region of cold drawn 80WVRe steel wire. The results show, austenizing temperature, isothermal time, isothermal temperature and holding time had almost equivalence effects on hardness of φ3.39 mm steel wire, while isothermal time had an obviously larger effect on hardness of φ1.91 mm steel wire than the another three factors. The optimal spheroidizing annealing process of φ3.39 mm steel wires was as follows., with austenizing temperature 760 ℃, holding time 60 min, isothermal temperature 690 ℃, isothermal time 360 min, uniformity and roundness of granule carbonization were improved markedly and hardness of the steel wire was 175 HV0.5. The optimal spheroidizing annealing process of φ1.91mm steel wires was as follows., with austenizing temperature 760 ℃, holding time 90 rain, isothermal temperature 690 ℃, isothermal time 240 min, uniformity and roundness of granule carbonization were improved markedly and hardness of the steel wire was 177 HV0.2.

关 键 词：80WVRe钢丝 双相区球化退火 正交试验 

分 类 号：TG162.85[金属学及工艺—热处理]