Metal flux-cored wire containing Ti and B for carbon dioxide gas shielded welding
A technology of gas shielded welding and carbon dioxide, applied in metal processing equipment, welding medium, welding equipment, etc., can solve the problems of increased sensitivity to pitting corrosion, poor paint resistance, troubles in follow-up treatment, etc., and improve the welding process , Excellent mechanical properties of deposited metal, excellent porosity resistance effect
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[0020] The Ti-containing and B-type metal flux-cored welding wire for carbon dioxide gas shielded welding according to the present invention is composed of steel strip sheath and metal flux core powder, the metal flux core powder is wrapped in the steel strip sheath, and the metal flux core powder is wrapped in the steel strip sheath. The weight of the core powder accounts for 10~30% of the total weight of the welding wire;
[0021] Based on the total weight percentage of the steel strip sheath, the components and weight percentages of the steel strip sheath are: C 0.001~0.025%; Si 0.001~0.030%; Mn 0.01~0.35%; Al 0.001~0.030%; P 0.001~0.001~ 0.020%; S 0.001~ 0.020% and balance Fe;
[0022] Based on the total weight percentage of the metal drug core powder, the composition and weight percentage of the metal drug core powder are: 0.1-5.0% fluoride; 0.01-0.5% C; 8-20% Mn; 2-8% Si; Ti 0.1~5.0%; B 0.01~0.1%; Zr 0.01~2.0% and the balance Fe; wherein the fluoride is K 2 SiF 6 , Na...
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