| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method for a hot rolled steel sheet with which rupture of a plate can be prevented in a complete continuous hot rolling by improving bondability of a periphery of an edge part in a plate width direction of a sheet bar junction without increasing a size of a joint device.SOLUTION: A manufacturing method for a hot rolled steel sheet characterized in that when a hot rolled plate is manufactured by use of a complete continuous hot rolling method, a plate width direction end portion of at least one of a tail end part of a preceding sheet bar and a tip of a following sheet bar is so formed as to be a taper shape or a curve profile shape in a rough rolling process, and thereafter, the tail end part of the preceding sheet bar and the tip of the following sheet bar are sheared by a shear in a state such that at least a part of the taper shape or the curve profile shape is left. |
