PLATING CELL FOR PRODUCTION EQUIPMENT COMMONLY USED FOR PLATED STEEL SHEET AND COLD ROLLED STEEL SHEET

摘要

PURPOSE:To facilitate atmosphere control and to expedite and facilitate switching to a process for producing a plated steel sheet and a process for producing a cold rolled steel sheet by partitioning the inlet side and outlet side of a plating cell with a movable partition wall. CONSTITUTION:The upper space of the plating cell is partitioned to an inlet side space 4 and an outlet side space 7 by the partition wall 1 and providing an aperture part to the partition wall 1 and the guides 14 are provided to the right and left side of the aperture. A partition plate 15 is disposed along a guide 14. The partition plate 15 is moved vertically along the guide 14 by driving a lifting device 16 to open or close the aperture of the partition wall 1. The state in which the aperture of the wall 1 is closed is the stage for producing the plated steel sheet and the inlet side space 4 can be maintained in the state of a low oxygen concn. and dew point to prevent the activated surfaces of the steel sheet 3 from being oxidized. The bottom end of the wall 1 is lifted upward from the molten metal level of the plating bath 2 in the process for producing the cold rolled steel sheet.