| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method and device for effectively controlling sheet crown, in particular, in the case narrow metal sheets are rolled by using a wide rolling mill in a hot rolling stage being a manufacturing process of metallic sheet products of steel, aluminum, copper or the like. SOLUTION: In the hot rolling of the hot rolled sheet, at least at the time of the final rolling stage of a rolled stock, by changing the temp. distribution in the width direction by cooling and heating in the width direction by cooling and heating devices 21, 22 such as an coolant spray or an electric heater, the sheet crown of the rolled stock is controlled so as to be approximated to the target sheet crown.</p> |
