发明授权
- 专利标题: Method for manufacturing tubes using the cold pilger rolling method
- 专利标题(中): 使用冷轧机轧制方法制造管材的方法
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申请号: US32649申请日: 1998-02-27
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公开(公告)号: US5916320A公开(公告)日: 1999-06-29
- 发明人: Horst Stinnertz , Michael Baensch
- 申请人: Horst Stinnertz , Michael Baensch
- 申请人地址: DEX Dusseldorf
- 专利权人: Mannesmann Aktiengesellschaft
- 当前专利权人: Mannesmann Aktiengesellschaft
- 当前专利权人地址: DEX Dusseldorf
- 优先权: DEX19745603 19971008; DEX19750787 19971106
- 主分类号: B21B21/00
- IPC分类号: B21B21/00 ; B21D7/02
摘要:
Disclosed are a method and apparatus for manufacturing tubes, preferably tubes composed of high-tensile steels or special alloys, using the cold pilger rolling method with two rolling stands which can be moved backward and forward, at least in opposite directions at times and in the rolling direction by means of crank drives. The rolling stands have rollers which are calibrated in a tapering manner and which, driven by toothed racks via cogs, roll over the material to be rolled, with an alternating rotation direction. The majority of the forming work takes place on the first rolling stand and a relatively small portion of the forming work takes place on the second rolling stand and additional smoothing work is carried out. Reduction rolling takes place in both rolling stands via a mandrel which is matched to the roller caliber, and the backward and forward movements of the two rolling stands are matched to one another in such a manner that the angular offset between the crank drives is chosen such that the forming zone of the first stand does not occur at the same time as the forming zone of the second stand.
公开/授权文献
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