Preparation method of metal lining ring-shaped composite cylinder

A metal-lined, ring-shaped technology, applied in the field of composite high-pressure gas cylinders, can solve the problems of poor manufacturability of reinforced materials, spot chemical corrosion, etc., and achieve the effects of excellent fatigue performance, low cost, and comprehensive mechanical properties of the gas cylinder

Inactive Publication Date: 2015-04-01
HUBEI SANJIANG AEROSPACE GRP HONGYANG ELECTROMECHANICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above defects or improvement needs of the prior art, the present invention provides a method for preparing a metal-lined annular composite gas cylinder. Corrosion problem, and adopts dry yarn winding and brushing method to form, overcomes the problem of poor manufacturability of current carbon fiber reinforced materials

Method used

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  • Preparation method of metal lining ring-shaped composite cylinder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] S1: Helical winding and hoop winding methods are used to wind heterocyclic aramid fiber dry yarns on the outer wall of a clean and smooth annular metal lining multiple times to obtain multiple winding layers. Among them, the heterocyclic aramid fiber is Russian aramid fiber APMOC, with a linear density of 800tex. When winding, the dry yarn is first poured onto the small thread spool, and then the small thread spool is installed on the ring cylinder winding machine, and then the dry The yarn is ply wound onto a titanium alloy lining. Before winding, the surface of the titanium alloy lining is uniformly sandblasted and cleaned with alcohol. The winding helical layer is alternately wound with 5 tangent points and 6 tangent point lines, the number of layers of the helical layer is 10 layers, and the number of layers of the hoop winding layer is 4 layers.

[0029] S2: Prepare high-strength and easy-to-impregnate resin glue, and repeatedly paint the resin glue on the multi-l...

Embodiment 2

[0034] This embodiment is the same as Embodiment 1, the difference is:

[0035] S1: The linear density of the heterocyclic aramid fiber is 300tex.

[0036] S2: High-strength and easy-to-impregnate resin glue formula and the mass ratio of each formula is epoxy resin TDE-85: epoxy resin EP01441-310: methyltetrahydrophthalic anhydride: imidazole = 0.2: 0.3: 0.7: 0.02, when applying glue The temperature of the resin glue is 60°C, and the mass ratio of the resin glue consumed by the first glue brushing, the second glue brushing and the third glue brushing is 2.2:1.3:0.5. After the first brushing, keep it in an oven at 70°C for 10 minutes. Then carry out the second glue brushing, the second glue brushing time is 15min, the glue brushing method and baking method are the same as the first glue brushing. Finally, apply glue for the third time, and the glue brushing time is 10 minutes. The glue brushing method and baking method are the same as the first time. After three times of gluin...

Embodiment 3

[0039] This embodiment is the same as Embodiment 1, the difference is:

[0040] S1: The linear density of the heterocyclic aramid fiber is 500tex.

[0041] S2: High-strength and easy-to-impregnate resin glue formula and the mass ratio of each formula is epoxy resin TDE-85: epoxy resin EP01441-310: methyltetrahydrophthalic anhydride: imidazole = 0.4: 0.15: 0.55: 0.01, when applying glue The temperature of the resin glue is 70°C, and the mass ratio of the resin glue consumed by the first glue brushing, the second glue brushing and the third glue brushing is 2.4:1.5:0.7. After the first brushing, keep it in an oven at 60°C for 50 minutes. Then carry out the second glue brushing, the second glue brushing time is 15min, the glue brushing method and baking method are the same as the first glue brushing. Finally, apply glue for the third time, and the glue brushing time is 10 minutes. The glue brushing method and baking method are the same as the first time. After three times of g...

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Abstract

The invention discloses a preparation method of a metal lining ring-shaped composite cylinder. The preparation method comprises the following steps: (S1) winding aramid-fiber dry yarns for multiple times on the outer wall of a clean and smooth ring-shaped metal lining by adopting spiral winding and circumferential winding so as to obtain a plurality of winding layers; (S2) repeatedly preparing high-strength and easy-dipping resin adhesive and brushing the resin adhesive on the plurality of winding layers in the step (S1) for multiple times so as to obtain a semi-finished composite cylinder product; (S3) carrying out surface coating on the semi-finished product in the step (S2) so as to obtain a semi-finished product to be cured; and (S4) carrying out curing on the semi-finished product to be cured in the step (S3) to obtain the metal lining ring-shaped composite cylinder. The preparation method disclosed by the invention has the advantages that the process is simple, the matching property of the metal lining and a composite material is good, no electrochemical corrosion is caused and the fatigue performance of the prepared composite cylinder is excellent.

Description

technical field [0001] The invention belongs to the field of composite high-pressure gas cylinders, and more specifically relates to a method for preparing an aramid fiber-reinforced ring-shaped gas cylinder with a metal inner lining, which is applied in the fields of aviation, spaceflight and military affairs. Background technique [0002] In aviation, aerospace and military weapon systems, ring-shaped gas cylinders can make more effective use of warhead structure space, and will not shift the center of mass due to the reduction of material in the container when used, which has more advantages than spherical and cylindrical gas cylinders. has been more and more widely used. Pure metal annular gas cylinders have high strength and high quality, but the aerospace field can be described as "preoccupied" with quality. The test shows that if the weight of the jet engine structure is reduced by 1Kg, the weight of the aircraft structure can be reduced by 4Kg, and the ceiling can b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/42B29C70/16B29K103/00B29K201/00
CPCB29C70/42B29C70/16B29K2103/00B29K2201/00
Inventor 杨恒陈娓
Owner HUBEI SANJIANG AEROSPACE GRP HONGYANG ELECTROMECHANICAL
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