Production manner null of the projection attaching steel sheet which is superior in board thickness

摘要

PURPOSE:To improve the plate thickness accuracy of a protrusion steel plate. CONSTITUTION:The plate thickness in the direction of the plate width is measured by a profile meter and the plate thickness is calculated at part free from protrusions to be kept under feedback control. When the protrusion steel plate 3 is rolled and manufactured by caliber rolls arranged in the direction of a plate width, the plate thickness is controlled by a signal obtained by using a plate thickness measuring device 7 which can sweep in the direction of the plate width arranged on and after the final rolling stand 6.