egw and gmaw compound welding system

Abstract

The invention discloses an EGW (electro-gas welding) and GMAW (gas metal arc welding) combined welding system. The EGW and GMAW combined welding system comprises a frame, a welding power source fixed on the frame, a welding box and a cooling water tank, wherein a welding mechanism, a welding wire feeding mechanism, a protective gas feeding mechanism and an electric cabinet are arranged in the welding box; the electric cabinet adopts two working modes, namely an EGW working mode and a GMAW working mode; under the two working modes, each electric control element controls the work of the welding mechanism, the welding wire feeding mechanism and the protective gas feeding mechanism independently; a function slide block is arranged on the welding mechanism, connected with the electric cabinet, and used for switching the working modes of each electric control element in the electric cabinet. The EGW and GMAW combined welding system has the advantages that EGW and GMAW are combined, and organic switching of the two welding technologies is realized, so that the welding efficiency is greatly improved; moreover, the welding quality and the welding control accuracy are high.

Description

technical field [0001] The invention belongs to the field of automatic welding equipment, and in particular relates to a composite welding system of EGW (gas electric vertical welding) and GMAW (gas metal arc welding). Background technique [0002] In the field of welding, the vertical weld is a welding position with high welding difficulty. How to ensure the welding quality and efficiency of the vertical weld has always been a problem that people in the welding industry have been discussing. Scientific welding methods, precise welding process parameters, skilled welding skills, and advanced welding equipment are all important means to ensure the quality and efficiency of vertical welds. [0003] Gas-electric vertical welding (EGM) is an arc welding method in which the arc between the continuously fed filler metal electrode and the weld pool is used to create a joint. For welding in an approximate vertical welding position, modules can be used to force the molten weld metal...

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Problems solved by technology

[0005] In the fields of Sinopec, PetroChina, shipbuilding, and wind power generation wind towers, welding process experiments are required for gas-electric vertical welding of carbon steel specimens and argon arc vertical seam welding of LNG low-temperature stainless steel specimens. The purpose is to obtain accurate welding process parameters. , to verify a feasible welding process, while the traditional welding process needs to use a variety of welding machines to complete all the welding work, and the welding efficiency is low

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