发明授权
US5771727A Process and device for straight-drawing long drawing material in
multiple steps
失效
用于在多个步骤中直拉长拉伸材料的工艺和装置
- 专利标题: Process and device for straight-drawing long drawing material in multiple steps
- 专利标题(中): 用于在多个步骤中直拉长拉伸材料的工艺和装置
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申请号: US749819申请日: 1996-11-15
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公开(公告)号: US5771727A公开(公告)日: 1998-06-30
- 发明人: Horst Stinnertz , Peter Kalkenings , Karl Heinz Hausler
- 申请人: Horst Stinnertz , Peter Kalkenings , Karl Heinz Hausler
- 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: DEX19544383.7 19951115
- 主分类号: B21C1/20
- IPC分类号: B21C1/20 ; B21C1/30
摘要:
A process for drawing stretched metal workpieces, especially tubes, for the purpose of cross-sectional reduction in more than one drawing step using at least two sequential drawing aggregates. The aggregates grip the workpiece on the outer periphery, with two alternately-moved clamping carriages, which draw the workpiece continuously through respective drawing rings associated with the respective aggregates and arranged in respective drawing-ring holders. The drawing aggregates can be driven independently of one another in a power-regulated and/or moment-regulated manner. Furthermore, during the drawing process, a defined prestress force, which prevents deflection of the workpieces from a straight line, is maintained at all times in the section of the workpiece located between the drawing aggregates.
公开/授权文献
- US5189709A Dynamic pattern matcher using incomplete data 公开/授权日:1993-02-23
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