An automatic welding repair method for anodized steel claw head

Abstract

The invention discloses an automatic welding repair method for an anode steel claw head. The automatic welding repair method comprises the steps of cutting the corrosion loss section of the steel claw head and trimming the cutting surface to a plane; selecting a round steel rod with the same material and diameter as the anode steel claw head and turning the end surface to a plane; selecting an auxiliary connection rod with the same or similar material as the anode steel claw head, welding the auxiliary connection rod between the cutting surface of the steel claw head and the end surface of the round steel rod coaxially and annularly and forming annular build-up welding space between the steel claw head and the round steel rod; welding the whole annular build-up welding space solidly through an automatic annular horizontal welding method and then completing welding repair of one anode steel claw head. According to the automatic welding repair method, the annular build-up welding space is formed between the cutting surface of the steel claw head and the end surface of the round steel rod through the auxiliary connection rod and is welded solidly through the automatic annular horizontal welding method, and therefore automatic welding repair of the anode steel claw head is realized, the labor intensity is lowered, the repair efficiency is improved, the qualification rate of welded joints is high, the electrical resistivity is low, the power consumption is small, the strength is high, and the production cost is lowered for enterprises.

Description

technical field [0001] The invention relates to an automatic welding repair technology for large-section metal materials, in particular to an automatic welding repair method for anode steel claw heads. Background technique [0002] Anode steel claws are frequently used equipment accessories in the electrolytic aluminum production process. Due to their long-term contact with electrolytic aluminum liquid, they are easily corroded in high-temperature and high-current operating environments, resulting in large consumption and heavy repair tasks. For a long time, domestic electrolytic aluminum enterprises have adopted the manual arc welding method for the repair of anode steel claws, that is, the traditional surrounding welding method. However, due to the limitations of the weldment groove processing and welding process, this welding method is not only inefficient, but also There are shortcomings such as small welding area, low joint strength, high resistivity, and short service ...

AI Technical Summary

Problems solved by technology

Compared with the surrounding welding method and casting technology, this welding repair method can greatly reduce the resistivity of the welded joint, but due to the low degree of automation of this method, the welding efficiency is low, and the residual stress of the welded joint is large, and the concentricity of the weldment poor, easily deformed

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