| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for notching a cold-rolled steel sheet which can reliably prevent a decrease in speed of a central line and an occurrence of line stop when notching a plate width end of a plate joint part between a preceding sheet and a following sheet in a cold-rolled steel sheet continuously processing line. <P>SOLUTION: The method for notching a cold-rolled steel sheet changes each of the advancing speed and retreating speed of a notcher according to the remaining length of a steel strip on an entry side of a looper to prevent an occurrence of line stop due to lack of time for notching, in the notching in the cold-rolled steel sheet continuously processing line. <P>COPYRIGHT: (C)2013,JPO&INPIT |
