Cored electrode wires

Details Cored electrode wires Cored electrode wires

1991-10-05

1993-03-09

Shaw, Clifford C.

Electric heating

Metal heating

By arc

21914522, 21914631, B23K 909, B23K 35362

Patent

active

051928515

ABSTRACT:
A cored electrode wire for pulsed electric arc welding, wherein said core includes from 2.5 to 12% calcium fluoride, from 2 to 8% calcium carbonate, from 0.2 to 2% silicon dioxide and from 0.5 to 1.5% of a fused mixed oxide. Also disclosed is a cored electrode wire for pulsed electric arc welding, wherein said core contains from 4 to 15% elemental manganese and from 2 to 8% elemental silicon, the remainder of the core comprising fused mixed oxide, desired alloying components and iron powder. In each of the above cases, the wire is suitable for use with the following welding pulse parameters: pulse energy: 8 to 250 J and preferably 10 to 120 J; pulse frequency: 10 to 500 Hz and preferably 15 to 350 Hz; background current: 8 to 250 A and preferably 10 to 100 A; wire feed speed: 1 to 20 m/min and preferably 4 to 17 m/min.

REFERENCES:
patent: 4016399 (1977-04-01), De Haeck
patent: 4087673 (1978-05-01), Kiilunen
patent: 4340805 (1982-07-01), Banks
patent: 4426428 (1984-01-01), Kammer et al.
patent: 4438319 (1984-03-01), Blot
patent: 4782211 (1988-11-01), Kiilunen

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