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Rapid forming method of thermoplastic fiber-reinforced composite material plate

A fiber reinforced material and composite material technology, which is applied in the field of rapid prototyping, can solve the problems of high degree of manualization, long processing cycle and high product cost, and achieve the effect of high degree of mechanization, short processing cycle and shortened molding time.

Inactive Publication Date: 2017-09-29
东莞市海旭新材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to solve the problems of high manual degree, long processing cycle, low efficiency, high product cost and difficulty in mass production in the existing fiber composite molding process, and to provide a thermoplastic fiber-reinforced The rapid prototyping method of composite material sheet has the characteristics of high degree of mechanization, short processing cycle, high efficiency, low product cost and easy realization of mass production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0036] The rapid prototyping method based on the thermoplastic fiber-reinforced composite material plate involved in the present embodiment 1 is characterized in that it comprises the following steps:

[0037] 1) Prepare molding equipment and materials; set up special equipment with pre-impregnation, laying, lamination, temperature and pressure control, vacuum compression molding, cutting, heating and molding structures, and prepare resin solutions that can be thermoplastically molded and fiber reinforced materials;

[0038] 2) Making a fiber film; uniformly coating the thermoplastic resin on the carbon fiber cloth, so that the thermoplastic resin is fully soaked in the carbon fiber cloth, and then baking at 120° C. for 5 minutes to prepare the carbon fiber film;

[0039] 3) Making thermoplastic fiber-reinforced laminated composite materials; take the 2 layers of the above-mentioned fiber films described in step 2) and laminate them, place them in a vacuum press with programma...

specific Embodiment 2

[0044]The characteristics of this specific embodiment 2 are:

[0045] 1) Evenly coat the thermoplastic resin on the carbon fiber cloth, and bake it at 130°C for 4 minutes to prepare the fiber film;

[0046] 2) Take the 3 layers of the above-mentioned fiber film and laminate them, place them in a vacuum press with programmable temperature and pressure control, and press them under the pressure of 0.8PMa and the temperature of the product at 200°C for 5 minutes in a vacuum state to produce Fiber laminated composite material sheet with a thickness of 0.5mm;

[0047] 3) According to the size requirements of the product, use an automatic cutting machine to cut precise thermoplastic fiber sheets with a size of 1.0*0.8M;

[0048] 4) Put the plate under the infrared temperature machine and heat it to 120°C, softening time: 20S;

[0049] 5) Put the softened plate into the mold and press it into shape, the pressure is 30KG, the temperature is 100°C, and the pressing time is 5min

[0...

specific Embodiment 3

[0052] The characteristics of this specific embodiment 3 are:

[0053] 1) Evenly coat the thermoformable resin on the carbon fiber cloth, and bake it at 150°C for 3 minutes to obtain a fiber film;

[0054] 2) Laminate 4 layers of the above-mentioned carbon fiber films, place them in a vacuum press with programmable temperature and pressure control, and press them in a vacuum state at a pressure of 0.7PMa and at a product temperature of 190°C for 5 minutes to produce Fiber laminated composite material sheet with a thickness of 0.6mm;

[0055] 3) According to the size requirements of the product, use an automatic cutting machine to cut precise thermoplastic fiber laminated composite material panels, with a size of 1.2*1.5M;

[0056] 4) Put the sheet into the mold, heat the mold to 200°C, and the sheet will soften; the pressing pressure is 30KG, and the molding time is 15S

[0057] 5) demoulding, trimming, complete.

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Abstract

The invention relates to a rapid forming method of a thermoplastic fiber-reinforced composite material plate. The rapid forming method is characterized by comprising the following steps that (1) forming equipment and materials are prepared, specifically, the special equipment with presoaking, laying, superimposing, temperature control and pressure control, vacuum lamination forming, cutting, heating and mould pressing forming structures is arranged, a resin solution with a thermoplastic-forming function and the fiber-reinforced materials are prepared; (2) the fiber-reinforced materials are soaked into the resin solution with the thermoplastic-forming function, and fiber glue pieces are prepared; (3) the fiber glue pieces obtained in the step (2) are superimposed by 1-5 layers, the superimposed fiber glue pieces are placed in a vacuum press with a programmable temperature control and pressure control function, and a thermoplastic fiber-reinforced laminated composite material is prepared; (4) a mould plate is cut; (5) the mould plate is heated and softened; (6) mould pressing forming is conducted; and (7) the finished product is prepared. The rapid forming method of the thermoplastic fiber-reinforced composite material plate has the characteristics and beneficial effects of high mechanization degree, short processing period, high efficiency, low product cost and the like.

Description

technical field [0001] The invention relates to a rapid prototyping method for a thermoplastic fiber reinforced composite material plate. The invention belongs to the technical field of composite material product processing. Background technique [0002] Fiber composite products refer to the products that are formed by curing fibers and resins in various ways. In the existing technology, the molding processes include hand lay-up molding, autoclave molding, compression molding, RTM vacuum-assisted molding and resin transfer molding process RTM. : [0003] The hand lay-up process is to paste the prepreg on the mold by hand, and then cure it. There are problems such as low production efficiency, poor working conditions and high labor intensity. [0004] The autoclave molding process is to laminate the carbon fiber material with pre-impregnated resin on the mold, and cover the mold, use the high-pressure air in the tank to apply pressure to the mold, and heat and cure in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/50B32B37/10B29C51/02B29C51/42
CPCB29C51/02B29C51/421B29C70/50B32B37/1018
Inventor 孙志斌胡志荣郭永军漆小龙布施建明伍明
Owner 东莞市海旭新材料技术有限公司
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