Welding wire and welding method using the wire

Details Welding wire and welding method using the wire Welding wire and welding method using the wire

2006-04-11

2006-04-11

Elve, M. Alexandra (Department: 1725)

Electric heating

Metal heating

Weld rod composition

C219S146230, C219S1370WM

Reexamination Certificate

active

07026576

ABSTRACT:
A welding wire contains 0.025 mass % or less C, 1.3 mass % or less Si, 2.0 mass % or less Mn, 10 to 25 mass % Cr, 0.04 to 0.2 mass % N, Al and Ti in amounts (mass %) satisfying the relationship: e−800(x−0.05)2×e−300(y−0.08)2≧0.5, where x and y represent contents (mass %) of Al and Ti, respectively, O in an amount (mass %) satisfying the relationship: z<(x+y−0.01)/0.5, where z represents a total amount (mass %) of oxygen in the welding wire, and the balance being Fe and unavoidable impurities. Gas-shielded welding is performed using the welding wire and a shielding gas containing Ar and at least one of O2and CO2, wherein, provided that volume % of the O2and CO2contained in the shielding gas are p and q, respectively, the shielding gas satisfies the relationships: p≦10; q≦50; and p+q≦(x+y−0.01−0.5 z)/0.0006, whereby a weld improved in high-temperature resistance and crack resistance can be formed.

REFERENCES:
patent: 4871898 (1989-10-01), Cherne et al.
patent: 4987288 (1991-01-01), Yonker, Jr.
patent: 1 008 417 (2000-06-01), None
patent: 5-138394 (1993-06-01), None
patent: 9-225680 (1997-09-01), None
patent: 9225680 (1997-09-01), None
Patent Abstracts of Japan, vol. 2000, No. 25, Apr. 12, 2001, of JP 2001 219291 A (Daido Steel Co. LTD.), Aug. 14, 2001.
Patent Abstracts of Japan, vol. 1998, No. 01, Jan. 30, 1998, of JP 09 225680A (Daido Steel Co. LTD.), Sep. 2, 1997.
Patent Abstracts of Japan, vol. 017, No. 520 (M-1482), Sep. 20, 1993, of JP 05 138394A (Kobe Steel LTD.), Jun. 1, 1993.

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