Strip breakage early warning method and device in ultra-thin strip rolling process based on strip shape evolution

• Main Authors: REN ZHONGKAI, WANG TAO, MA XIAOBAO, LIU XIAO, CHEN PENG, LIU YAXING
• Format: Patent
• Language: Chinese; English
• Published: 03.03.2023
• Subjects: MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; ROLLING OF METAL; TRANSPORTING

The invention discloses a strip breakage early warning method and device in the ultra-thin strip rolling process based on strip shape evolution, and the method comprises the steps: carrying out the equal segmentation of a strip in the width direction according to the width of a strip shape detection channel unit and the width of the strip according to a twenty-high roll mill outlet strip shape instrument; initial strip shape distribution of each unit in the length direction of the strip to be rolled is obtained; according to the segment number and the initial plate shape distribution, the outlet plate shape under the specific rolling condition is calculated; the calculation result of the outlet plate shape is corrected; and according to the evolution of the corrected outlet plate shape, judging whether the strip is broken or not. By the adoption of the technical scheme, early warning can be made for strip breakage in the ultra-thin strip rolling process in advance, the corresponding strip breakage position is