基本信息:
- 专利标题： 전기 통전 방식의 관재 인발 장치 및 방법
- 专利标题（英）：Electric drawing apparatus of pipe and its method
- 专利标题（中）：管及其方法电绘图装置
- 申请号：KR1020130057356 申请日：2013-05-21
- 公开(公告)号：KR1020140137063A 公开(公告)日：2014-12-02
- 发明人： 강문진 , 김철희 , 김동철 , 강민정 , 황인성 , 이근안 , 송정한 , 김응주
- 申请人： 한국생산기술연구원
- 申请人地址： 충청남도 천안시 서북구 입장면 양대기로길 **
- 专利权人： 한국생산기술연구원
- 当前专利权人： 한국생산기술연구원
- 当前专利权人地址： 충청남도 천안시 서북구 입장면 양대기로길 **
- 代理人： 이인행; 양기혁; 김남식; 한윤호
- 主分类号： B21C1/22
- IPC分类号： B21C1/22 ; B21C9/00 ; B21C3/14
The present invention by applying a current at the time of cold drawing of the tubes improved the formability and, as relates to the electric power application manner Tube drawing apparatus and method of making it possible to prevent the spring-back phenomenon, and through the work piece in the tubes form moving , group the first drawing to the drawing molding the work piece; And wherein the first contact group has passed previously pulled out of the work piece and clouds, the front roll electrode in contact with the work piece and electrically; And wherein the first group drawn in contact with the work piece after the last of the cloud, a back electrode roll in contact with the work piece and electrically; It may comprise; and a first electrical supply unit for generating a potential difference between the front roll and the rear roll electrode to the electrode current to flow in the work piece between the front roll and the rear roll electrode electrode.