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A vacuum electron beam welding method for solid rocket motor combustion chamber shell

A vacuum electron beam and solid rocket technology, which is applied in electron beam welding equipment, rocket engine devices, machines/engines, etc., can solve the problems of low production efficiency, high processing cost, and long production cycle, and achieve low processing cost and low labor cost. The effect of reducing strength and reducing labor intensity

Active Publication Date: 2014-06-04
SHANGHAI XINLI POWER EQUIP RES INST
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Problems solved by technology

The existing electron beam welding mode has the obvious disadvantages of low production efficiency, high processing cost and long production cycle

Method used

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  • A vacuum electron beam welding method for solid rocket motor combustion chamber shell
  • A vacuum electron beam welding method for solid rocket motor combustion chamber shell

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Experimental program
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Embodiment

[0043]

[0044] Post-welding non-destructive testing methods: appearance testing (VT) and radiographic testing (RT).

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Abstract

The invention discloses a vacuum electron beam welding method for a combustion chamber shell of a solid rocket motor, which comprises the following steps: determining a component assembly scheme and designing technical equipment; formulating a welding process scheme and technical regulations. Compared with the prior art, the method adopted by the present invention has the advantages and beneficial effects as follows: the quality of the weld seam is good, and the X-ray inspection confirms that there are no defects such as excessive air holes, unfused, cracks, etc.; the welding processing efficiency is high, the processing cost is low, and the single The production cycle is shortened and the labor intensity is reduced.

Description

A vacuum electron beam welding method for a solid rocket motor combustion chamber shell Technical field The present invention relates to welding technique, specifically belong to the vacuum electron of solid rocket motor combustor thin-walled casing beam welding method. It is about the medium and low-alloy ultra-high-strength steel 30Cr3SiNiMoVA (hereinafter referred to as 30Cr3 steel) Small solid rocket motor combustor case. Background technique Combustion chamber casing is the important part of solid rocket motor, and its main body structure is long cylinder form, comprises front The head, the front spinning cylinder, the back spinning cylinder, and the rear head are made of low-alloy ultra-high-strength steel (30Cr3 steel), and the welding is realized The key process of connecting and forming the above four components is crucial to ensure the bearing capacity of the joint and the pressure bearing performance of the shell influences. The electron beam welding pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K15/04B23K15/06F02K9/34
Inventor 王勇潘丽华王学峰
Owner SHANGHAI XINLI POWER EQUIP RES INST
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