Process for forming light-weight and high-pressure gas bottle made of composite material

A technology of composite material and molding process, which is applied in other household appliances, household appliances, applications, etc., to achieve the effect of wide application prospects, low cost and light weight

Inactive Publication Date: 2011-10-12
AEROSPACE RES INST OF MATERIAL & PROCESSING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no high-reliability, low-cost lightweight high-pressure composite material gas cylinder molding process that can be applied to many fields of aerospace at home and abroad.

Method used

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  • Process for forming light-weight and high-pressure gas bottle made of composite material
  • Process for forming light-weight and high-pressure gas bottle made of composite material
  • Process for forming light-weight and high-pressure gas bottle made of composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A lightweight high-pressure composite gas cylinder was prepared according to the following steps:

[0022] Step 1: The outer surface of the metal lining of the gas cylinder is treated. The metal lining of the gas cylinder used is formed by spinning, with a diameter of 400mm, a length of the barrel section of 300mm, and a length of the head of 150mm. The outer surface of the metal lining is subjected to sand blasting, the sand blowing pressure is 0.2MPa, the sand mesh is 40 mesh, and the outer surface of the metal inner lining is evenly sand blasted, and the sand blowing step is realized by the existing process;

[0023] Step 2, prepare epoxy resin glue, proportioning is epoxy resin TDE-85 (1,2-epoxycyclohexane 4,5 dicarboxylic acid epoxy resin), diluent 669 epoxy resins (ethylene glycol dishrunk Glyceryl ether), amine curing agent DDM (4,4'-diaminodiphenylmethane) and accelerator 2-4-dimethylimidazole are mixed into gel according to the ratio of 1:0.6:0.3:0.005 by weigh...

Embodiment 2

[0032] According to the same steps as in Example 1, the light-weight high-pressure composite gas cylinder is prepared, and the difference is that:

[0033] (1) The diameter of the metal lining of the gas cylinder used in step 1 is 350mm, the length of the barrel section is 300mm, and the length of the head is 150mm;

[0034] (2) In step 2, the epoxy resin glue is made of amino tetrafunctional epoxy resin, phthalate epoxy resin, m-phenylenediamine and 2-methylimidazole according to the ratio of 1: 0.6: 0.3: 0.005 by weight mix;

[0035](3) The fiber used in step 3 is T300 continuous fiber, and the soaking time is controlled at about 3 seconds.

[0036] (4) The specific winding implementation process in step 4 is four layers of hoop winding, two layers of longitudinal winding, the longitudinal winding angle is ±12 degrees, four layers of hoop winding, two layers of longitudinal winding, and the longitudinal winding angle of ±18 degrees , two layers of longitudinal winding, the...

Embodiment 3

[0041] According to the same steps as in Example 1, the light-weight high-pressure composite gas cylinder is prepared, and the difference is that:

[0042] (1) The diameter of the metal lining of the gas cylinder used in step 1 is 500mm, the length of the barrel section is 600mm, and the length of the head is 150mm;

[0043] (2) In step 2, the epoxy resin glue is mixed by ordinary bisphenol A type epoxy resin, tetrahydrophenyldimethyl ester epoxy resin, m-aminomethylamine and imidazole according to the ratio of 1:0.4:0.5:0.005 by weight ;

[0044] (3) The fiber used in step 3 is T100 continuous fiber, and the soaking time is controlled at about 6 seconds;

[0045] (4) The specific winding implementation process in step 4 is four layers of hoop winding, two layers of longitudinal winding, the longitudinal winding angle is ±16 degrees, four layers of hoop winding, two layers of longitudinal winding, and the longitudinal winding angle of ±21 degrees , four layers of hoop windin...

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Abstract

The invention relates to a process for forming a gas bottle made of a composite material, which comprises the following concrete steps of: 1. treating an outer surface of a metal liner of the gas bottle; 2. preparing to obtain epoxy resin glue; 3. infiltrating continuous fiber in the epoxy resin glue prepared in the step two at 20-30 DEG C; 4. winding the continuous fiber, winding the metal liner treated in the step one by using the continuous fiber infiltrated in the step three, wherein the metal liner is alternately annularly and longitudinally wound 8-10 times, 2-8 layers of continuous fiber are wound in the annular direction or the longitudinal direction every time, and the winding tension is 40-50N per strand; and 5. curing the composite material. The light-weight and high-pressure gas bottle made of the composite material and produced by using the process provided by the invention has the advantages of light weight, high reliability, low cost and high working pressure and fatigue times.

Description

technical field [0001] The invention relates to a gas cylinder molding process, in particular to a composite material gas cylinder molding process. Background technique [0002] Composite high-pressure gas cylinder is an important structural part of the new generation launch vehicle pressurized delivery system, which is used for pressurized delivery of fuel. In the past, titanium alloy gas cylinders with a working pressure of 22.5 MPa were commonly used in launch vehicles. The forming process was to stamp titanium alloy forgings into a certain shape, and then weld them into shape. The main defects were heavy weight, low working pressure, and small gas storage capacity. [0003] At present, the development of composite gas cylinders has started at home and abroad. According to the development of aerospace gas cylinders abroad, taking the US space shuttle as an example, composite gas cylinders made of thin metal linings and high-strength fiber windings have been used in large...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C53/56B29C70/50B29L22/00
Inventor 王俊锋林松韩东峰田新刘则军
Owner AEROSPACE RES INST OF MATERIAL & PROCESSING TECH
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