METHOD FOR CONTROLLING PLATE THICKNESS IN HOT CONTINUOUS ROLLING MILL WHEN PLATE IS PASSING THROUGH

摘要

PURPOSE:To require a right detection rolling-down position in spite of generation of the thermal expansion and friction of a roll and to stably control the plate thickness by arranging a thickness gage in a continuous rolling mill and requiring a detection rolling down position from the plate thickness obtained by this thickness gage. CONSTITUTION:The thickness gage 9 is arranged in a continuous rolling mill and the detection rolling-down position is required from the plate thickness obtained by this thickness gage 9. Therefore, though the thermal expansion and friction are generated on the roll 10, a right detection rolling-down position conforming to the opening of the roll can be required and the plate thickness can be controlled stably.