Manufacturing method of ring-shaped titanium alloy high-pressure cylinder

A technology for high-pressure gas cylinders and manufacturing methods, which is applied in the direction of pressure vessels, fixed-capacity gas storage tanks, gas/liquid distribution and storage, etc. It can solve problems such as no relevant reports on actual manufacturing technology, achieve convenient disassembly, and improve production efficiency , the effect of reducing the residence time

Inactive Publication Date: 2010-07-14
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the advancement of the aviation industry, the manufacturing equipment is becoming more and more refined. Due to the limitation of the use of space, the space requirements for this type of gas cylinder on the equipment are often very strict. It is necessary to ensure the overall strength of the gas cylinder and ensure its assembly accuracy. and gas storage capacity, the manufacturing difficulty of this type of gas cylinder can be imagined
According to the literature search results, most of the research on this kind of non-standard gas cylinder is still in the simulation stage, and there is no relevant report on the actual manufacturing technology

Method used

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  • Manufacturing method of ring-shaped titanium alloy high-pressure cylinder
  • Manufacturing method of ring-shaped titanium alloy high-pressure cylinder
  • Manufacturing method of ring-shaped titanium alloy high-pressure cylinder

Examples

Experimental program
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Effect test

Embodiment 1

[0050] A ring-shaped titanium alloy high-pressure gas cylinder of the present invention, the material of the gas cylinder is TC4 alloy, the storage gas is nitrogen, the working pressure is 66MPa, the shape of the bottle body is a semi-circular structure, and it is equipped with a bottle head 7, a bottle tail 2 and an adapter block The manufacturing process of exhaust nozzle 5, bottle head exhaust nozzle 8 and other devices is as follows:

[0051](1) Material solution treatment: 940-960°C, heat preservation for 30 minutes, water quenching.

[0052] (2) Processing of the inner and outer rings of gas cylinders: use a whole piece of circular TC4 alloy material to process the inner and outer semi-circular rings that meet the size requirements, and finish the hollow part inside the bottle body to the required size; in the thickness direction of the inner and outer rings A 2mm machining allowance is reserved on the whole to ensure that after welding, the influence of high temperature...

Embodiment 2

[0065] The same manufacturing method as in Example 1 was adopted, that is, the material was subjected to solution treatment first, then processed and welded, and protective tooling equipment was used to manufacture a gas cylinder with a diameter of 40 mm, a wall thickness of 5 mm, and a working pressure of 40 MPa. The weld seam has passed the penetration and radiographic inspection, and the grade I is qualified, and the finished gas cylinder has passed the air tightness test and blasting test. The toughness of the material is good, the tested material strength reaches 1100Mpa, and the elongation rate is above 8%.

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Abstract

The invention introduces a manufacturing method of a ring-shaped titanium alloy high-pressure cylinder, which comprises the following steps: material solution treatment, internal and external ring processing of the cylinder, cylinder body welding, cylinder body cutting, cylinder head, cylinder tail and adapter block processing, welding of the cylinder head, the cylinder tail and the cylinder body, welding of a cylinder head exhaust nozzle and the cylinder head, welding of an adapter block exhaust nozzle and the adapter block, vacuum aging procedure, and tooling use in the welding processes. The method of the invention realizes the manufacturing of titanium alloy ring-shaped precise containers, can obtain gas storage devices with the performance qualified and meeting quality requirements, and solves the manufacturing difficulty of the titanium alloy high-precision non-standard pressure containers for aviation.

Description

technical field [0001] The invention relates to a manufacturing technology of titanium alloy products, in particular to a manufacturing method of an annular titanium alloy high-pressure gas cylinder. Background technique [0002] The annular gas cylinder is a gas storage device used in aerospace. Different from conventional spherical and cylindrical gas cylinders, the annular gas cylinder described in the present invention is a non-standard shape gas cylinder, and the stored gas is nitrogen. The working pressure is 66MPa, and the shape is a semi-circular structure, equipped with bottle head, bottle tail, intake and exhaust devices, etc. [0003] With the advancement of the aviation industry, the manufacturing equipment is becoming more and more refined. Due to the limitation of the use of space, the space requirements for this type of gas cylinder on the equipment are often very strict. It is necessary to ensure the overall strength of the gas cylinder and ensure its assembl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17C1/04
Inventor 杜磊余巍孙耀峻
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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