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Method for producing fiber reinforced plastic pressure container

The technology of a pressure vessel and a production method, which is applied in the production field of glass fiber reinforced plastic pressure vessels, can solve problems such as poor pressure bearing performance, and achieve the effects of high product qualification rate and high process productivity.

Active Publication Date: 2009-09-30
CANATURE HEALTH TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a production method of a glass fiber reinforced plastic pressure vessel in order to overcome the defects of poor pressure bearing performance of the pressure vessel in the prior art. The pressure vessel with single head screw is the same

Method used

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  • Method for producing fiber reinforced plastic pressure container
  • Method for producing fiber reinforced plastic pressure container
  • Method for producing fiber reinforced plastic pressure container

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Such as Figure 3-4 As shown, the screw (ie, threaded joint) in the production method of the FRP pressure vessel of this embodiment is different from the general screw in the prior art. The outer middle part of the screw 3 has a sealing groove 31 for accommodating sealing components. The sealing part is made of elastic material, and it is placed in the sealing groove 31 corresponding to the screw port 3 before the neck of the inner tank is formed. Between the mouth and neck. The neck of the liner mouth compresses the sealing component into the sealing groove 31 on the screw 3, and because of the sealing property of the sealing component, a seal is formed between the inside and the outside of the pressure vessel.

[0029] Two main tools are applied in the present invention, one is a blow mold 5, and the other is a segmented blowing needle 2. Let's introduce it first.

[0030] The blow mold 5 includes two left and right cavities, and the inner contour 51 of the cavity ...

Embodiment 2

[0034] The screw port in Embodiment 2 is a common screw port in the prior art, so the steps of this embodiment are basically the same as those in Embodiment 1. The difference is that when the injection-molded preformed threaded interface 3 is respectively fixed on the uppermost blowing needle 22 and the lowermost blowing needle 21 , there is no need to attach a sealing member.

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Abstract

The invention provides a method for producing a fiber reinforced plastic pressure container, which comprises the following steps that: S1, a blowing needle is divided into a plurality of segments, and source nipples are respectively fixed on the uppermost blowing needle and the lowermost blowing needle; S2, the segmented blowing needles are connected into a whole and fixed under a liner molding material extruding outlet, and a blow molding machine extrudes a liner material to a position where the liner material completely covers the blowing needle; S3, a mold is matched, high-pressure air is input from the lower part of the blowing needle for pressure maintaining after the mold is matched so as to make a liner completed formed; and S4, the mold is opened and the blowing needle is screwed out. The pressure container produced by the method has the integral liner, has the same pressure-bearing and sealing properties as a pressure container with a single-head source nipple, and high process productivity and product percent of pass, needs no subsequent processing, and can meet the requirement of mass production.

Description

technical field [0001] The invention relates to a production method of a FRP pressure vessel, in particular to a production method of a FRP pressure vessel with a double-threaded joint. Background technique [0002] Such as figure 1 As shown, the existing structure of a double-threaded pressure vessel is composed of a threaded head 60 and a straight body 61 . The threaded head 60 is made by injection molding process, and the straight body part 61 is made of glass fiber winding, and then the two threaded heads 60 are respectively fixed on the welding parts 63 at both ends of the straight body part by ultrasonic welding technology, thereby forming pressure container6. By changing the length of the straight body portion 61, pressure vessels with different length specifications under the same diameter specification can be realized. [0003] There are following defects in this production method: [0004] 1. Most of the parts are completed by injection molding process, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C49/04B29C49/20B29C49/60B29C49/48B29L22/00
Inventor 瞿建国陈小功
Owner CANATURE HEALTH TECH GRP CO LTD
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