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    • 2. 发明授权
    • Method and device for applying an adjustable tensile-stress distribution, in particular in the edge regions of cold-rolled metal strips
    • 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
    • US07434435B2
    • 2008-10-14
    • US10570413
    • 2004-08-27
    • Hans-Peter RichterHartmut PawelskiLudwig WeingartenThorsten BodeJürgen KlöcknerRalf Ohrndorf
    • Hans-Peter RichterHartmut PawelskiLudwig WeingartenThorsten BodeJürgen KlöcknerRalf Ohrndorf
    • B21B27/06
    • B21B37/28B21B1/40B21B13/142B21B27/02B21B27/106B21B37/32B21B37/44B21B39/08B21B45/0251B21B45/0278B21B2027/103
    • 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.
    • 本发明涉及一种用于施加可调拉伸应力分布的方法和装置,特别是在金属条(16),特别是金属箔的冷轧过程中的边缘区域中,以减少过度的风险 在带材的边缘处形成张力和裂缝,这可能导致带材中的裂纹的负面影响和生产的减少,并且为了改善条带的表面及其平面性,即使对于 相对较高的条带位移速度,并且还减少条带修剪宽度。 为了实现这些目标,实施以下两种措施中的至少一种或两种组合:a)通过润滑在进料侧和在排放侧进行冷却来分离工作辊的润滑和冷却,b)额外的影响 特别是通过在区域中喷涂(21)不同温度的轧制油,c)使用工作辊(12,12')附近的特殊横截面构造 带状边缘在开花过程中产生部分材料堆积,所述堆积形成具有随后通过的较长条带边缘,从而抵消拉伸应力过度累积的风险。