HOT ENDLESS ROLLING METHOD AND METHOD FOR MANUFACTURING HOT ENDLESS ROLLED PRODUCT

摘要

PROBLEM TO BE SOLVED: To provide a hot endless rolling method and a manufacturing method of a hot endless rolled product by which the loss in yield by scrapping a material to be rolled by cutting it off can be reduced by making the sum total of an unsteady region in lubricated rolling where the material is unsteady due to the change of the transient lubricant supply in the lubricated rolling and the region sum of a tracking error region in the joined part where is planned to cut in a succeeding stage and a joint unsteady region where is the unsteady part in the material and size of the material to be rolled in the neighborhood of the joined part in the hot endless rolling. SOLUTION: In the hot endless rolling method, the lubricated rolling is performed so as to regionally lap the unsteady region X in the lubricated rolling where the material is unsteady due to the change of the transient lubricant supply in the lubricated rolling on the material to be rolled on the region sum of the tracking error region Y of the joined part where is planned to cut in the succeeding stage and the joint unsteady region Z where is the unsteady part in the material and the size of the material to be rolled in the neighborhood of the joined part.