Method and device for applying regulable tensile stress distribution, in particular in the edge regions of cold-rolled metal strip

The invention relates to a method and a device for applying regulable tensile stress distribution, in particular in the edge regions during cold rolling of metal strip (16), in particular metal foil, for the purpose of reducing the danger of excessive tension buildup and strip edge cracking which ha...

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Bibliographic Details
Main Authors OHRNDORF, RALF, KLOECKNER, JUERGEN, RICHTER, HANS-PETER, PAWELSKI, HARTMUT, WEINGARTEN, LUDWIG, BODE, THORSTEN
Format Patent
LanguageChinese
English
Published 01.07.2005
Subjects
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
PERFORMING OPERATIONS
PUNCHING METAL
ROLLING OF METAL
TRANSPORTING
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Summary:The invention relates to a method and a device for applying regulable tensile stress distribution, in particular in the edge regions during cold rolling of metal strip (16), in particular metal foil, for the purpose of reducing the danger of excessive tension buildup and strip edge cracking which has the disadvantageous consequence of production-impeding strip cracks, as well as for the purpose of improving the strip surface and its evenness even at relatively fast strip speeds, and for the purpose of reducing strip trimming widths. To this effect, at least one measure, or a combination of at least two of the following measures, is/are applied: (a) separation of lubricating and cooling the work rollers by lubricating at the feed end and cooling at the delivery end; (b) additionally influencing the strip edges by hot edge spraying, in particular by spraying (21) onto selected zones rolling oil with different temperature ranges; and (c) by using a specially ground surface of the work rollers (12, 12') in the re
Bibliography:Application Number: TW200493126157