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Method for making continuous carbon fiber cf/paek thermoplastic composite support buckle

A composite material and manufacturing method technology, which can be applied to household appliances, other household appliances, household components, etc., can solve problems such as time-consuming, and achieve the effects of simple implementation, short molding cycle, and high heat resistance temperature.

Active Publication Date: 2022-04-12
CHANGZHOU HUA JUN SPECIAL ENG PLASTICS PROD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] A method for preparing thermoplastic composite aircraft wing ribs has been disclosed in the prior art. It uses CFF and PPS materials to be molded into plates, then heated up to a certain temperature, placed in the mold of the aircraft wing ribs, and stamped into products. Two-step forming, two-step heating and cooling procedures, etc., are time-consuming

Method used

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  • Method for making continuous carbon fiber cf/paek thermoplastic composite support buckle
  • Method for making continuous carbon fiber cf/paek thermoplastic composite support buckle
  • Method for making continuous carbon fiber cf/paek thermoplastic composite support buckle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] A continuous carbon fiber CF / PAEK thermoplastic composite material supporting buckle mold is an assembled mold, and the supporting buckle is a 90° bending supporting buckle; as Figure 1-16 As shown, it includes an upper cavity plate and a lower cavity plate 6 for forming an internal cavity and a concave-convex matching structure, a pressure block 1 for contacting with a press and applying pressure to the upper cavity plate; for accommodating the lower Cavity plate 6, upper cavity plate and mold frame frame plate 2 of briquetting block 1 and bottom plate 7 for supporting lower cavity plate 6;

[0083] The lower cavity plate 6, the upper cavity plate and the pressing block 1 are located in the outer frame of the mold in sequence, and the distance between the lower cavity plate 6, the upper cavity plate and the pressing block 1 and the inner wall of the frame plate 2 is 0.02mm~ 1mm; the support buckle 5 made by the mold is located between the lower cavity plate 6 and the ...

Embodiment 2

[0089] A continuous carbon fiber CF / PAEK thermoplastic composite material supporting buckle mold, basically the same as embodiment 1, the only difference is that the longitudinal section of the wedge block 4 is a similar isosceles triangle, and the base angle of the similar isosceles triangle is 60 °. An isosceles triangle and an extension line formed by extending the base of the isosceles triangle to the outside of both sides for a certain length, the extension line and the base are collinear, and the base of the isosceles triangle constitutes a horizontal middle part of the T-shape; etc. The sum of the extension lines formed by the base of the isosceles triangle extending to the outside of both sides for a certain length accounts for 25% of the side length of the base of the isosceles triangle; the length of the base of the isosceles triangle is the length of the T-shape 40%, and the width of the briquetting block 1 is 250% of the length of the base of the isosceles triangle....

Embodiment 3

[0091] A kind of continuous carbon fiber CF / PEEK thermoplastic composite material support buckle that adopts embodiment 1 to make the method for supporting buckle with mold, its concrete steps are as follows:

[0092] (1) Preparation of prepreg: The continuous CF / PEEK prepreg uses continuous carbon fiber CF as the reinforcing phase and PEEK as the matrix phase (the mass content of PEEK resin is 60%). First, cut according to the size of the blank and prepare the material;

[0093] Mold pretreatment: use soft tools to process the mold to remove surface slag, stains or rust spots, etc., then use 2000-grit sandpaper to polish, spray a layer of anti-sticking mold liquid reagent and paste film, and the mold is waiting for assembly ;

[0094] (2) Lay the cut prepregs in the lower cavity 6 of the mold in sequence to complete the preliminary laying. The upper cavity plate is divided into the lower cavity plate and tapped with a rubber cone to ensure that the upper cavity plate is place...

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Abstract

The invention relates to a manufacturing method of a continuous carbon fiber CF / PAEK thermoplastic composite support buckle, comprising a mold, the mold including an upper cavity plate and a lower cavity plate for forming an internal cavity, and a bottom plate for forming an outer frame of the mold And the mold frame frame plate, the pressing block used to contact the press and apply pressure to the upper cavity plate; the upper cavity plate is a solid plate with a T-shaped overall longitudinal section formed by splicing wedge-shaped blocks and side plates on both sides shape structure; the side plates on both sides are located in the left and right parts of the T shape, and the wedge block is located in the middle part of the T shape; the application of this mold is: with continuous carbon fiber CF as the reinforcement phase and PAEK as the matrix phase, the prepreg is placed In the internal cavity, a support buckle with continuous CF / PAEK thermoplastic composite material and 90° bending is produced by one-step molding with high temperature and high pressure process. The invention realizes the transformation of composite material products from ordinary flat profile parts to special-shaped products by means of combined moulds, and the special-shaped structure of the upper and lower cavity plates, and is integrally formed in one step.

Description

technical field [0001] The invention belongs to the technical field of composite materials, is applied in the field of aerospace, military industry and medical treatment, and is applied to the key parts of anti-fatigue and anti-wear, and relates to a method for manufacturing a continuous carbon fiber CF / PAEK thermoplastic composite support buckle, including a mold and its corresponding molding methods. Background technique [0002] Continuous CF / PAEK thermoplastic composites refer to thermoplastic composites in which carbon fibers reinforce PAEK resins in the form of continuous fibers (long fibers) or fabrics. The resin matrix endows it with excellent mechanical properties, thermal properties, chemical corrosion resistance and easy processing properties; CF mainly determines the mechanical properties of the composite material. Through reasonable design optimization, it can make up for the lack of performance of pure PAEK materials, and can be used in aerospace military airc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/34B29C33/30B29L31/22
CPCB29C70/345B29C33/305B29L2031/22
Inventor 王二平陆士强董萌萌李强
Owner CHANGZHOU HUA JUN SPECIAL ENG PLASTICS PROD
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