A welding process method for deformation control of plate surface tension tank

Abstract

The present application discloses a welding process method for deformation control of a plate-type surface tension tank, which includes assembling the tank and marking the equatorial welding seam in equal parts; starting a welding procedure to complete the positioning welding of the welding seam; performing equatorial welding Assemble the first section of the weld seam; start the welding procedure to complete the first section of weld seam welding; assemble the second section of the equatorial weld seam; start the welding program to complete the second section of weld seam welding; complete other equal parts in sequence Symmetrical seam welding. The application is specifically a vacuum electron beam welding process for a single equatorial weld of a plate surface tension tank, which can reduce the welding deformation of the plate surface tension tank, thereby ensuring that the gap between the internal management device (PMD) deflectors meets the requirements, and enhances the tank. The overall performance is improved, and the qualified rate of storage tank products is improved.

Description

technical field [0001] The present application relates to the technical field of tank welding, in particular, to a welding process method for deformation control of a plate-type surface tension tank. Background technique [0002] The plate storage tank is the mainstream product that is being actively updated in my country at present. It has the advantages of simple structure, light weight, high reliability, expandable volume, anti-shake, and refilling. It can complete the static orbit. The full management of satellite propellants can solve the compatibility and scalability problems of large-capacity storage tanks. It can increase the carrying capacity of propellants and enhance the adaptability of satellites. It is a more advanced propellant storage tank. [0003] The core structure of the propellant management device (PMD) inside the tank is composed of a deflector and a liquid accumulator assembly. The gap between the deflector and the wall of the tank shell directly affect...

AI Technical Summary

Problems solved by technology

The welding process is not only the process of forming the weld seam, but also the process of complex and rapid physical and chemical changes in and around the heat-affected zone. It is also a process of deformation, strain, and stress release. This unavoidable deformation process will make the tank The structure is deformed, which leads to the deformation of the PMD deflector, which affects the gap between the PMD deflector and the tank shell, and thus affects the use of the tank to varying degrees; in addition, due to the flexibility of the entire PMD deflector Larger, such a small deformation will make it difficult to control and guarantee the gap between the deflector and the shell, and in severe cases, the product will be scrapped directly

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