BUILDUP WELDED BODY

WIPO Patent Application WO/2015/190574

A1

A welded metal which has a composition containing specific amounts of Ni, Cr, Nb, C, Si, Mn, P, S, Cu, Mo, V and N, with the balance made up of Fe and unavoidable impurities and satisfying formula (A) is formed, by buildup welding, on the surface of a base material which has a composition containing specific amounts of C, Cr, Mo, V, Nb, Si, Mn, P, S, Cu, Ni and N, with the balance made up of Fe and unavoidable impurities. At this time, the Cr contents and the C contents of the base material and the welded metal are set to satisfy formula (B). In this connection, the atomic symbols in parentheses represent the contents (mass%) of the respective elements. [Cr] + [Mo] + 1.5 × [Si] + 0.5 × [Nb] + 2.5 × [Mn] - [0.2] × [Ni] + 30 × [C] ≤ 21.5 (A) ([Crw]/[Crm]) × ([Cm]/[Cw]) ≤ 15 (B)

JP2731435	INDUSTRIAL APPLICABILITY: Electromigration-preventing brazing material and electronic components brazed with external leads
JPH0433778	GAS SHIELDED WELDING METHOD FOR SURFACE TREATED STEEL SHEETS
JPS57137094	HIGH SPEED SUBMERGED ARC WELDING METHOD OF SINGLE LAYER ON BOTH SIDES

MIYAMURA TAKEO
NAMBA SHIGENOBU
IKEDA TETSUNAO
ISHIDA MASATOSHI

PCT/JP2015/066944

December 17, 2015

June 11, 2015

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KOBE STEEL LTD (JP)

B23K35/30; C22C38/00; C22C38/24; C22C38/48

JPS6410317B2	1989-02-21
JPS6369941A	1988-03-30
JPS60121098A	1985-06-28
JPS61115674A	1986-06-03
JPS6268693A	1987-03-28
JPS6264493A	1987-03-23
JPS58199847A	1983-11-21

See also references of EP 3156170A4

Eikoh Patent Firm, P. C. et al. (JP)
Patent business corporation glory patent firm (JP)

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