ASSEMBLED SLAB MANUFACTURING METHOD, ASSEMBLED SLAB, AND CLAD STEEL SHEET MANUFACTURING METHOD

WIPO Patent Application WO/2023/171350

A1

In a method for manufacturing an assembled slab as a rolled raw material for manufacturing a clad steel sheet comprising a base material, and a cladding material joined to the base material, welding is performed using high-energy beam welding on a contact portion (6) between a base raw material (1) and a cladding raw material (2) on an end surface (12) of an assembled slab (10), and, in the high-energy beam welding, an aiming position (8) of a welding beam (7) is shifted from the contact portion (6) to a high thermal conductivity material side. Consequently, in the assembled slab (10), an imbalance between a weld portion (9) and a contact surface (11) can be eliminated, and therefore it is possible to provide: an assembled slab manufacturing method with which, when joining contact portions of different types of metals using high-energy beam welding, weld metal penetration is not formed in an unbalanced manner on one material side, and supplying a filler for welding is unnecessary; an assembled slab; and a clad steel sheet manufacturing method.

JPS57202718	MANUFACTURE OF LARGE-SIZED COIL
JPS58103981	DETECTION OF WELDED JOINT POSITION

TANAKA SHOTARO (JP)
WATANABE HIROAKI (JP)
KAWA MASATOMO (JP)

PCT/JP2023/006092

September 14, 2023

February 20, 2023

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NIPPON STEEL STAINLESS STEEL CORP (JP)

B23K15/00; B21B1/22; B23K20/04; B23K26/21; B23K26/323

JP2021143387A	2021-09-24
JPS63295078A	1988-12-01
JPS60177980A	1985-09-11
JP2012061474A	2012-03-29
JP2021186861A	2021-12-13

KINOSHITA & ASSOCIATES (JP)

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