基本信息:
- 专利标题： Metal cylindrical body, and method for manufacturing the same
- 申请号：JP2003121286 申请日：2003-04-25
- 公开(公告)号：JP2004322160A 公开(公告)日：2004-11-18
- 发明人： OSAME YASUHIRO
- 申请人： Showa Denko Kk , 昭和電工株式会社
- 专利权人： Showa Denko Kk,昭和電工株式会社
- 当前专利权人： Showa Denko Kk,昭和電工株式会社
- 优先权： JP2003121286 2003-04-25
- 主分类号： B21C23/00
- IPC分类号： B21C23/00 ; B21C23/08 ; B21C23/14 ; B21C37/08 ; B21C37/15 ; B23K20/12 ; H01B5/06
摘要：
PROBLEM TO BE SOLVED: To provide a long metal cylindrical body which is increased in size and excellent in pressure resistance. SOLUTION: The metal cylindrical body is formed of port hole extruded tube 2 in which a plurality of preform sections 2b are welded to each other by a plurality of welded sections 2a over the entire length. The base metal of the port hole extruded tube 2 is refined at every welded section 2a to refine grains. Preferably, the port hole extruded tube 2 is refined through friction stirring and joining by using a probe of a friction stirring and joining tool. COPYRIGHT: (C)2005,JPO&NCIPI
公开/授权文献:
- JP4243134B2 Metal tubular body and a method for manufacturing 公开/授权日：2009-03-25
信息查询:
EspacenetIPC结构图谱:
| B | 作业；运输 |
| --B21 | 基本上无切削的金属机械加工；金属冲压 |
| ----B21C | 用非轧制的方式生产金属板、线、棒、管或型材；与基本无切削金属加工有关的辅助加工 |
| ------B21C23/00 | 金属挤压；冲挤 |