Welding processing method of spacecraft thrust chamber body components and spacecraft thrust chamber

Abstract

The invention provides a welding processing method of a spacecraft thrust chamber body assembly and a spacecraft thrust chamber, providing an outer wall and an inner wall, wherein the outer side of the inner wall is provided with a convex rib, and the other side of the convex rib is used for connecting with the The inner surface of the outer wall is tightly connected, and after the outer wall and the inner wall are connected, the ribs define a plurality of passages for the coolant to circulate between the outer wall and the inner wall; at least partially extract the outer wall The gas between the inner wall and the inner wall is subjected to the first pressurization treatment; after the first pressurization treatment, at least part of the gas enters between the outer wall and the inner wall, and then the second pressurization treatment is performed; The maximum pressure of the second pressurization treatment is greater than the maximum pressure of the first pressurization treatment; a thrust chamber body structure composed of the outer wall and the inner wall is obtained. The method has the advantages of simple process, short manufacturing cycle and cost saving.

Description

technical field [0001] The invention relates to the technical field of spacecraft engines, in particular to a welding processing method dedicated to the body components of a spacecraft thrust chamber and the spacecraft thrust chamber. Background technique [0002] The spacecraft engine technology has been rapidly upgraded with the development of the aerospace industry. As the main component of the engine, the thrust chamber is the key component to complete the energy conversion of the propellant and generate thrust. Among them, the thrust chamber body is the part responsible for the mixed combustion of fuel in the spacecraft engine to generate high-temperature and high-pressure gas, and then the gas is accelerated and discharged through the throat to obtain reverse thrust. The body of the thrust chamber is a Laval-shaped structure, and the thrust chamber can usually be cooled by regenerative cooling technology. The thrust chamber is composed of the inner wall and the outer...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a welding processing method for thrust chamber body components and a spacecraft thrust chamber, which solves the problem that it cannot be manufactured at present. The whole method has the advantages of simple process, short manufacturing cycle, cost saving, mass production and increased production capacity. Etc

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