Multi-wire rotating arc welding

Abstract

The invention relates to an arc welding, in particular to a multi-wire rotating arc welding, which is a rotating arc welding utilizing welding wires wound in a certain helical angle, automatically formed in the welding process and having stirring effects on a molten bath. The multi-wire rotating arc welding not only improves welding melting efficiency but also enables welding line metal alloy to be even in component, and grain refinement is achieved.

Description

technical field [0001] The invention relates to an arc welding, in particular to a multi-wire rotary arc welding. It uses the welding wire wound at a certain helix angle to automatically form a rotating arc that has a stirring effect on the molten pool during the arc welding process, which not only improves the welding deposition efficiency, but also makes the weld metal alloy composition uniform and the grains finer. Background technique [0002] There are two types of existing rotary arc welding, one is the rotary arc welding proposed by the former Soviet Union in the 1950s, which refers to the formation of an arc between two joint end faces, and the arc rotates at a high speed under the action of a magnetic field to make the joint end faces It is a high-efficiency welding method that is heated and then connected by upsetting. This kind of rotary arc welding belongs to flash butt welding in contact welding, and does not belong to the category of arc welding. It is mainly ...

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to popularize and use it in large quantities. It is only used in automatic arc welding and cannot be used in semi-automatic arc welding.

[0005] This shows that above-mentioned existing rotary arc welding obviously still has inconvenience and defective in the structure of method, equipment and use, needs further improvement

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