![Apparatus for and method of manufacturing metallic bellows](/ep/2003/01/22/EP1166912A3/abs.jpg.150x150.jpg)
基本信息:
- 专利标题: Apparatus for and method of manufacturing metallic bellows
- 专利标题(中):Vorrichtung und Verfahren zum Herstellen von metallischenFaltenbälgen
- 申请号:EP01305001.8 申请日:2001-06-08
- 公开(公告)号:EP1166912A3 公开(公告)日:2003-01-22
- 发明人: Okada, Hideki , Furuyama, Tsutomu
- 申请人: NHK SPRING CO., LTD.
- 申请人地址: 3-10, Fukuura, Kanazawa-ku Yokohama-shi JP
- 专利权人: NHK SPRING CO., LTD.
- 当前专利权人: NHK SPRING CO., LTD.
- 当前专利权人地址: 3-10, Fukuura, Kanazawa-ku Yokohama-shi JP
- 代理机构: Abbie, Andrew Kenneth
- 优先权: JP2000181727 20000616; JP2000192802 20000627
- 主分类号: B21D15/10
- IPC分类号: B21D15/10
摘要:
A manufacturing method for manufacturing a bellows having pleat walls (4, 5) with S-shaped profiles comprises a primary forming process for forming a formed bellows, a pressing process for compressing the formed bellows in the axial direction, and a stretching process for pulling the compressed bellows in the axial direction, thereby obtaining desired pitches and free length. After the stretching process is carried out, the bellows is subjected to an annealing and ageing heat-treatment process. An apparatus for manufacturing the bellows (1) comprises a pair of molds (13, 14) that have their respective forming surfaces (36, 37) in shapes corresponding individually to the pleat walls (4, 5). The die (14) is slightly retreated away from the pleat walls (4, 5) just before the dies (13, 14) open in the diametrical direction after the pleat walls (4, 5) are formed.
摘要(中):
用于制造具有S形轮廓的褶皱壁(4,5)的波纹管的制造方法包括用于形成成形波纹管的初级成形工艺,用于沿轴向压缩所形成的波纹管的压制方法和拉伸拉伸工艺 压缩的波纹管沿轴向方向,从而获得期望的间距和自由长度。 在进行拉伸处理之后,对波纹管进行退火和时效热处理。 用于制造波纹管(1)的装置包括一对模具(13,14),其具有各自形成为与褶皱壁(4,5)相对应的形状的形状表面(36,37)。 在形成褶皱壁(4,5)之后,正好在模具(13,14)沿直径方向打开之前,模具(14)稍稍从褶皱壁(4,5)退回。
公开/授权文献:
- EP1166912B1 Method of manufacturing metallic bellows 公开/授权日:2004-11-03