H0Cr17Ni6Mn3钢丝电塑性拉拔的研究.pdfVIP

第36卷第6期 仓扁学玫 V01．36NO．6 2000年6月 ACTAMETALLURGICASINICA June2000 姚可夫 余鹏 郑明新 王俊 张华堂 (清华大学机械工程系，北京100084) 方威 刹、建周 (首钢冶金研究院技术科，北京100083) 摘 要 研究了脉冲电流对Hocrl7Ni6Mn3钢丝室温拉拔过程的影响．结果表明，施加脉冲电流可使钢丝的拉拔力显著下 降，最大降低幅值达40％．实验结果还表明，旌加脉冲电流大大提高了钢丝的塑性变形能力，显著减缓了钢丝的加工硬化速度，使 该钢丝在脉冲电流的作用下可从直径2．0mill拉拔至直径0．255mm而无需退火．拉拔钢丝的力学性能实验结果表明，电塑性 拉拔后的钢丝的抗拉强度下降． 关键词 电塑性，拉拔，HOCrl7Ni6Mn3钢 中图法分类号TB302．3 文献标识码 A oNWIRE—DRAWINGoFAHOCrl7Ni6Mn3 RESEARCH STEELWITHHIGH—DENSITYCURRENTPULSES YA0 Jun。ZHANG gelu．YUPeng。ZHENGMingxin．WANG Huatang ofMechanical 100084 University,Beijing Department Engineering，Tsinghua FANGwei。SUN3ianzhou Divisionof Instituteof Steel 100083 Technology,MetallurgicalCapitalCorporation，Beijing Correspondent：YA0Ke扯}associateprofessorI E-mail：kefuyao@263．net form received revised2000—02—17 Manuscript1999—11—29，in Theeffectof current on ofaHOCrl7Ni6Mn3steel ABSTRACT high-densitypulseswire—drawing was atroom wasfoundthatthewire forcewas reduced investigatedtemperature．It drawing obviously of currentandthe amountisabout thatthe byapplicationpulse largestdecreasing 40％．indicating effectisobvious．Itwasalsofoundthattheuseof deformation current，the electroplastic by pulse ability wiresisincreasedahdthework ratesofthewiresis ofthe greatly hardening apparently