Patent ID: 6216504
Filing Date: 2001-04-17
Classification: B21B

Abstract:
A method of altering settings for gauge-alteration-in-rolling amounts from set values for a preceding material to set values for a succeeding material when continuously rolling materials in a cold tandem rolling mill, comprising:obtaining rolling results for a succeeding material when a leading end portion of the succeeding material passes through an i-th stand and gauge results when the leading end portion of the succeeding material passes through a gauge detector at an outlet side of the i-th stand;modifying settings for a gauge-in-alteration-rolling mount at an (i+1)-th stand and subsequent stands, using the rolling results obtained when the leading end portion of the succeeding material passes through the i-th stand and using gauge results of the leading end portion of the succeeding material detected by the gauge detector at the outlet side of the i-th stand; andtracking the gauge results for the leading end portion of the succeeding material from the gauge detector at the outlet side of the i-th stand to an inlet side of the (i+1)-th stand, to thereby control the rolling speed at the i-th stand and make constant a mass-flow from the leading end portion of said succeeding material on the inlet side of the (i+1)-th stand.