Gas-shielded high-toughness solid welding wire and use method and application thereof
A solid welding wire, high toughness technology, applied in the field of welding material manufacturing, can solve the problem of poor low temperature impact toughness of solid welding wire, achieve good deoxidation effect, improve toughness, and uniform weld structure.
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[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0035] In the invention, the steel ingot smelting, wire rod rolling, annealing heat treatment, drawing, intermediate annealing, fine drawing, copper plating and other processes are carried out on the welding wire with chemical composition design to finally obtain the finished product gas-shielded high-toughness solid welding wire. The chemical composition of gas-shielded high-toughness solid welding wire in the examples is shown in Table 1.
[0036] Table 1: C...
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