COLD ROLLING SPEED CONTROL METHOD CAPABLE OF CONTROLLING SURFACE QUALITY OF STAINLESS STEEL WITHOUT ADDING ANY APPARATUS

摘要

PURPOSE: A cold rolling speed control method is provided to offer stainless steel having no heat streak.;CONSTITUTION: A cold rolling speed control method includes a reference value configuration stage of measuring one or more of a rolling load or forward slip in a steady state with the rolling speed after setting a rolling speed of a continuous rolling system(S1), a measured value measurement stage of measuring more than any one of a rolling load or forward slip while cold rolling stainless steel(S2), a variation calculation stage of calculating the variation being a percentage of a measured value to a reference value using the following equation(S3) and a rolling speed deceleration stage of decelerating the rolling speed when the variation is over 10%(S4). The steady state in the reference value configuration stage is a state that the rolling speed acceleration is finished and a normal rolling speed is started and being maintained. More than one of the rolling load or forward slip is measured in real time in the measured value measurement stage.;COPYRIGHT KIPO 2013;[Reference numerals] (AA) Cold rolling of stainless steel; (S1) Step of setting a reference value; (S2) Step of measuring a measured value; (S3) Step of calculating the variation; (S4) Step of decelerating the rolling speed