METHOD FOR PREVENTING WORKPIECE BACKSIDE FROM BEING FLAWED BY FOREIGN MATERIAL IN HOT ROLLING, DEVICE FOR PREVENTING WORKPIECE BACKSIDE FROM BEING FLAWED BY FOREIGN MATERIAL IN ROUGH ROLLING MILL IN HOT ROLLING LINE, AND ROUGH ROLLING MILL IN HOT ROLLING LINE EQUIPPED WITH DEVICE FOR PREVENTING BACKSIDE FLAW BY FOREIGN MATERIAL

摘要

PROBLEM TO BE SOLVED: To restrain backside flaws in hot rolling, to enhance the yield ratio by decreasing defectives to be thrown away, and to cut down labor, costs and time for transfering a rolled product to another line for throwing the defectives away. SOLUTION: A liquid is jetted to the lower stripper guide 191 of the rough rolling mill 12 in the hot rolling line 100. COPYRIGHT: (C)2007,JPO&INPIT