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Patent Searching and Data


Title:
演算装置および演算方法
Document Type and Number:
Japanese Patent JP6870359
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To correct a metal plate having various defects of a shape to obtain an excellent plate shape.SOLUTION: A process computer (6) includes a main operation unit (12) which calculates a correction amount of tensile force of a tension leveler (3), and a correction amount of crowning quantity of each of divided parts (341-349) in a lower side back-up roll (34). The main operation unit (12) calculates the correction amount by using a mathematical formula including an influence coefficient individually representing an influence degree of the tensile force, and an influence degree of the correction amount of the crowning quantity on a difference between a target value and a measured value for an elongation percentage difference between two points arrayed in a width direction of the metal plate (8).SELECTED DRAWING: Figure 7

Inventors:
Atsushi Aizawa
Hiroki Tomimura
Application Number:
JP2017021473A
Publication Date:
May 12, 2021
Filing Date:
February 08, 2017
Export Citation:
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Assignee:
Nippon Steel Corporation
International Classes:
B21D1/05
Domestic Patent References:
JP2002282942A
JP2003048008A
JP3008522A
JP63101021A
JP2015509852A
Attorney, Agent or Firm:
Harakenzo world patent & trademark