| 摘要 |
PURPOSE: A method for changing rolling velocity is provided to minimize the generation of an abnormal rolling state when a welding part passes through a roller. CONSTITUTION: A set value of rolling velocity is changed by a formula which is VRji = hi,b/hj,b multiplied Voi,a/1 + fi,c. Herein, the h is thickness of a rolled plate and the Vo is transferring velocity of the rolled plate at the entrance of the roller. The rolling velocity is slowly changed at the regular velocity for the regular time as soon as a welding part reaches to a roller. The changing shape of the rolling velocity is a ramp type.
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