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Patent Searching and Data

Document Type and Number:
Japanese Patent JP6791195
Kind Code:
To provide a method of improving a plate thickness deviation in a metal strip plate width direction of a welded joint part subjected to thickness reduction processing, in a method of performing thickness reduction processing by drafting the welded joint part between end parts of a precedent metal strip and a succedent metal strip by a pressure roller which is moved in a metal strip plate width direction in a continuous line.SOLUTION: A draft load of a pressure roller x which drafts a welded joint part is changed while the pressure roller x is moved in the metal strip S1, S2 plate width direction and, usually, a draft load of the pressure roller x is gradually reduced. Further preferably, surface temperature of the pressure roller x during movement in the metal strip pate width direction is measured and, based on the roller surface temperature, the draft load of the pressure roller x is controlled.SELECTED DRAWING: Figure 1

Masayasu Ueno
Uehara Soichiro
Application Number:
Publication Date:
November 25, 2020
Filing Date:
April 11, 2018
Export Citation:
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jfe Steel Corporation
International Classes:
B21B15/00; B21B37/58; B21B38/00; B21C51/00; B23K11/24
Domestic Patent References:
Foreign References:
Attorney, Agent or Firm:
Hideto Tomabechi