发明授权
- 专利标题: Apparatus for the continuous production of helical or annular corrugated metal tubes
- 专利标题(中): 用于连续生产螺旋或环形波纹金属管的设备
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申请号: US976146申请日: 1992-11-10
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公开(公告)号: US5325693A公开(公告)日: 1994-07-05
- 发明人: Ernst Hoffmann , Wolfram Klebl , Harry Staschewski
- 申请人: Ernst Hoffmann , Wolfram Klebl , Harry Staschewski
- 申请人地址: DEX Hanover
- 专利权人: Kabelmetal Electro GmbH
- 当前专利权人: Kabelmetal Electro GmbH
- 当前专利权人地址: DEX Hanover
- 优先权: DEX4137275 19911113
- 主分类号: B21C37/15
- IPC分类号: B21C37/15 ; B21C37/20 ; B21D15/04 ; B21D15/06
摘要:
In a process for the continuous production of helical or annular corrugated, thin-walled, in particular longitudinally welded metal tubes, in which a freely rotating roller ring in a turntable corrugation head, which is eccentric with respect to the smooth metal tube, rolls against the smooth surface of the metal tube to produce the corrugation, and the metal tube is transported by a traction device that grips the smooth and/or corrugated metal tube, the force acting on the roller ring is constantly measured, and the rotation speed of the head is controlled as a function of the measured force.
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