发明授权
US07434435B2 Method and device for applying an adjustable tensile-stress distribution, in particular in the edge regions of cold-rolled metal strips
有权
用于施加可调节的拉伸应力分布的方法和装置,特别是在冷轧金属带的边缘区域中
- 专利标题: Method and device for applying an adjustable tensile-stress distribution, in particular in the edge regions of cold-rolled metal strips
- 专利标题(中): 用于施加可调节的拉伸应力分布的方法和装置,特别是在冷轧金属带的边缘区域中
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申请号: US10570413申请日: 2004-08-27
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公开(公告)号: US07434435B2公开(公告)日: 2008-10-14
- 发明人: Hans-Peter Richter , Hartmut Pawelski , Ludwig Weingarten , Thorsten Bode , Jürgen Klöckner , Ralf Ohrndorf
- 申请人: Hans-Peter Richter , Hartmut Pawelski , Ludwig Weingarten , Thorsten Bode , Jürgen Klöckner , Ralf Ohrndorf
- 申请人地址: DE Düsseldorf
- 专利权人: SMS Demag AG
- 当前专利权人: SMS Demag AG
- 当前专利权人地址: DE Düsseldorf
- 代理商 Friedrich Kueffner
- 优先权: DE10340694 20030904; DE10352546 20031111
- 国际申请: PCT/EP2004/009578 WO 20040827
- 国际公布: WO2005/023444 WO 20050317
- 主分类号: B21B27/06
- IPC分类号: B21B27/06
摘要:
The invention relates to a method and a device for applying an adjustable tensile-stress distribution, in particular in the edge regions during the cold-rolling of metal strips (16), in particular metal foil, in order to reduce the risk of an excessive build-up of tension and cracks at the edges of the strip, which can lead as a negative consequence to cracks in the strip and to a reduction in production, and in order to improve the surface of the strip and its planarity, even for a relatively high strip displacement speed, and also to reduce strip trimming widths. To achieve these aims, at least one or a combination of two of the following measures are implemented: a) separation of lubrication and cooling of the working rolls by lubricating on the run-in side and cooling on the discharge side, b) additional influencing of the strip edges using a hot edge spray”, in particular by spraying (21) rolling oil with differing temperatures in zones, c) use of a special cross-sectional configuration of the working rolls (12, 12′) in the vicinity of the strip edges, which creates a partial material build-up during the blooming pass, said build-up forming a longer strip edge with subsequent passes, thus counteracting the risk of an excessive build-up of tensile stress.
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