Width-altering system for strip-shaped rolling rock
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United States of America Patent
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Sep 19, 2017
Issued Date -
Sep 17, 2015
app pub date -
Sep 17, 2013
filing date -
Oct 9, 2012
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Abstract
A method for altering the width of a strip-shaped rolled material (5), before, during or after hot rolling the rolled material in a hot rolling mill. The problem is to specify a method for altering width so that the length of a rolled out transition piece lying outside width tolerances can be reduced. Scrap losses are to be reduced. The crown of at least one working roll and/or at least one backing roll of a stand (7) is set as a function of a width error e=B−B between a setpoint width Bsetp and the width B of the rolled material (5), wherein the crown is increased when e>0 and the crown is reduced when e<0. AA Rcrown BB Bsetp.
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