КОЛИВАЧ ЗВАРЮВАЛЬНОГО ІНСТРУМЕНТУ ДЛЯ АПАРАТА ПІДВОДНОГО ЗВАРЮВАННЯ МОКРИМ СПОСОБОМ

Abstract

The paper defines the problem of automatic wet welding at a great depth in compressed conditions. A new design of the flux-cored wire feeding mechanism in an automatic wet welding machine with an original device for oscillating the electrode wire to ensure a continuous seam in the presence of non-guaranteed gaps in terms of space limitations is considered. This problem arises when special metal plugs are installed inside pipes of a small internal diameter to isolate or demarcate different environments, for example, coolant in deep pump systems, when plugging pipe outlets of oil and gas wells. Electric arc automatic welding is efficient enough to solve such a problem. Plug welding has certain problems associated with uneven gaps between the plug and the inner wall of the pipe, where the corner joint must be made. The original design of the oscillator of the welding tool is proposed and technically implemented in an automatic machine for the electric arc process, which provideswelding of such a joint. Ways for further development of the oscillator design with interesting improvements of capabilities are defined. A method of calculating such an oscillator based on structural kinematic schemes of its action has been developed. Presented on the real design of the oscillator as part of the welding machine feed mechanism. The developed oscillator is compact and efficient, and this can be seen from the given comparative plots and corresponding oscillograms. A successful industrial test of the development of a welding machine with a new feed mechanism took place with further commissioning. The new development can be used on other objects with conditions similar to those specified in the material of the article.