Abstract This invention is a flux-cored electrode wire for non-shielded arc welding with a powder flux filled in a hoop case, in which said flux comprises 20 - 70 percent of metal fluoride containing 1 - 30% of CeF2 and/or LiF and 0.5 - 10 percent of a complex metal fluoride, 1 - 20 percent of metal carbonate, 10 - 30% of Al-Mg alloy (containing 30 - 60% of Al) in powder form and 5 - 40 percent of metal powder other than Al-Mg, or further comprises less than 30 percent of a metal oxide wherein the Si content in said flux is restricted to less than 2 percent, and the weight of flux to the total weight of the wire is 10 - 40 percent. Said wire is satisfactory with respect to its workability in automatic and semi-automatic arc welding, and gives an excellent weld metal having high toughness and ductility.
A FLUX-CORED ELECTRODE WIRE FOR NON-SHIELDED ARC WELDING WITH A POWDER FLUX FILLED IN A HOOP CASE, IN WHICH SAID POWDER FLUX COMPRISES 20-70 PERCENT OF METAL FLUORIDE CONTAINING 1-30% OF CEF2, LIF OR COMBINATIONS THEREOF, AND 0.5-10 PERCENT OF A COMPLEX METAL FLUORIDE, 1-20 PERCENT OF A METAL CARBONATE, 10-30% OF AL-MG ALLOY CONTAINING 30-60% OF AL IN POWDER FORM AND 5-40 PERCENT OF A METAL POWDER OTHER THEN AL-MG, THE SI CONTENT IN SAID FLUX BEING LESS THAN 2 PERCENT, AND THE WEIGHT OF FLUX TO THE TOTAL WEIGHT OF THE WIRE BEING 10-40 PERCENT.
Claim 2
Dependent Claim
97 words
A FLUX-CORED ELECTRODE WIRE FOR NON-SHIELDED ARC WELDING WITH A POWDER FLUX FILLED IN A HOOP CASE, IN WHICH SAID POWDER FLUX COMPRISES 20-70 PERCENT OF METAL FLUORIDE CONTAINING 1-30% OF CEF2, LIF OR COMBINATIONS THEREOF, AND 0.5-10 PERCENT OF A COMPLEX METAL FLUORIDE, 1-20 PERCENT OF A METAL CARBONATE, 10-30% OF AL-MG ALLOY CONTAINING 30-60% OF AL IN POWDER FORM AND 5-40 PERCENT OF A METAL POWDER OTHER THEN AL-MG, THE SI CONTENT IN SAID FLUX BEING LESS THAN 2 PERCENT, AND THE WEIGHT OF FLUX TO THE TOTAL WEIGHT OF THE WIRE BEING 10-40 PERCENT.
Claim 3
Dependent Claim
27 words
A flux-cored electrode wire for non-shielded arc welding as set forth in claim 1, in which said powder flux comprises less than 30 percent of metal oxide.