| 摘要 |
In a hot-rolled steel sheet manufacturing line, provided are a cooling device excellent in discharging water, a manufacturing device for a hot-rolled steel sheet, and a manufacturing method for a steel sheet. The cooling device for a steel sheet is disposed on the downstream process side of the final stand in a hot finish rolling machine line and includes a plurality of cooling nozzles provided so as to be able to cool a steel sheet conveyed on a conveyance roller. The cooling nozzles are provided at positions located on the upper and lower surface sides of a region through which a steel sheet passes and are enabled to eject cooling water toward the region through which the steel sheet passes. The cooling device has a rectifying means provided so as to be able to rectify the discharge of cooling water that is ejected from the cooling nozzles toward a position located outside the width of uniform cooling by the cooling nozzles in the sheet width direction of a steel sheet. |
