| 摘要 |
<p>The method of the invention is implemented in a reversible rolling mill that comprises at least one rolling mill cage (13), an unwinding device (12) and a winding/unwinding device (17) on a so-called input side of the cage, first and second winding/unwinding devices (16, 19) on the opposite so-called output side of the cage, and flying shears (22), the strip (1) having, on either side of an intermediate section (1c) rolled to the desired thickness, two respectively strip-head (1a) and strip-tail (1b) service lengths wound on a mandrel of the input winding/unwinding device and the first output winding/unwinding device, respectively, wherein said method comprises during the last pass actuating the rolling mill (13) for winding the head service length on the mandrel of the first output winding/unwinding device, shearing the moving strip when the intermediate section runs in front of said flying shears, and attaching the new head end of the strip to the mandrel of the second output winding/unwinding device while carrying on the rolling operation under tension, and at the end of the last pass, shearing the running strip in order to separate the tail service length, that remains attached to the mandrel of the input winding/unwinding device, from the rest of the strip which is rolled and wound on the mandrel of the second output winding/unwinding device in order to form a coil having a required constant thickness within given tolerances on the entire length thereof.</p> |
