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Manufacturing method of fiber full winding plastic liner composite gas cylinder

A manufacturing method and liner technology, which can be applied to other household appliances, household appliances, applications, etc., can solve problems such as affecting the service life and safety of gas cylinders, poor bonding performance, and sealing problems of metal parts to be solved.

Inactive Publication Date: 2017-06-20
安徽绿动能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, although the problem of the combination of the metal bottle mouth and the plastic liner has been improved, the sealing problem of the metal part still needs to be solved.
[0004] At present, most of the plastic liner materials are made of high-density polyethylene (HDPE), and the poor bonding performance of HDPE leads to delamination between the fiber composite layer and the liner layer, which seriously affects the service life and safety of the gas cylinder.

Method used

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  • Manufacturing method of fiber full winding plastic liner composite gas cylinder
  • Manufacturing method of fiber full winding plastic liner composite gas cylinder
  • Manufacturing method of fiber full winding plastic liner composite gas cylinder

Examples

Experimental program
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preparation example Construction

[0043] 1. The present invention provides a new method for preparing a fully wound composite gas cylinder with a plastic liner.

[0044] 2. The invention provides a method for tightly combining the metal bottle mouth and the plastic liner, which solves the problems of plastic liner molding and sealing.

[0045] 3. The composite gas cylinder prepared by the method provided by the present invention solves the problem of the safety performance of the gas cylinder on the one hand, and solves the problem of low volume-to-weight ratio of the gas cylinder on the other hand.

[0046] 4. The treatment process of the outer surface of the plastic liner used in the present invention solves the problem of poor bonding between the plastic liner and the fiber composite layer.

Embodiment

[0049] See attached Figure 1-5

[0050] Liner molding:

[0051] The material of the plastic liner 1 adopts high-density polyethylene (HDPE) produced by Borealis;

[0052] The liner structure adopts a three-stage structure, that is, the straight section of the cylinder body plus two heads, that is, the two heads 7 and 8 in the attached drawing and the straight section 9 of the cylinder body, and the straight section 9 of the cylinder body is formed by extrusion process with a diameter of 428mm pipe with a wall thickness of 10mm;

[0053] The heads 7 and 8 are composed of threaded aluminum alloy metal parts 4 and 5 and non-metallic parts. The forming process first heats the aluminum alloy joints 4 and 5 to 70-100°C, and then places them on the mold of the head , and then through the injection molding process, the aluminum alloy joint is embedded in the plastic material to form an approximately ellipsoidal head 7, 8, and it is necessary to ensure that all the dovetail grooves...

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Abstract

The invention discloses a manufacturing method of a fiber full winding plastic liner composite gas cylinder. The method comprises the steps of plastic liner forming, plastic liner outer surface treatment and fiber winding and solidification. The liner is formed by welding a head in the opening position and a head in the plug position with a straight line section of a cylinder body. The head in the opening position is formed by injection molding of a metal joint with a through hole thread and plastic. The head in the plug position is formed by injection molding of a metal joint with a non through hole thread and plastic.

Description

technical field [0001] The invention relates to the field of pressure vessel manufacture. More specifically, it relates to a method for manufacturing a composite gas cylinder with a fiber fully wound plastic liner. Background technique [0002] With the continuous development of new energy technology, the supporting energy assembly, storage and transportation technology has also made great progress in recent years. The demand for pressure gas cylinders containing energy media, especially gas media, has also increased significantly at home and abroad. However, the current domestic market application The vast majority of gas cylinders used for high-pressure gas storage and transportation are all-metal or fiber-wound reinforced gas cylinders with metal liners, the volume-to-weight ratio is very low, and the metal liner has problems such as inner wall corrosion. The requirements are becoming more and more stringent, and the weight of gas cylinders is getting lighter and lighter...

Claims

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Application Information

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IPC IPC(8): B29D22/00B29C45/14B29C65/02B29C71/02B29C71/04
CPCB29C45/14B29C65/02B29C71/02B29C71/04B29D22/003
Inventor 黄凡江志强黄文波
Owner 安徽绿动能源有限公司
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