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Fiber-reinforced thermoplastic resin matrix composite laminate mold pressing method and mold pressing device

A thermoplastic resin and composite material layer technology, applied in the field of fiber reinforced composite materials, can solve the problem of not considering the problem of resin melt pore discharge, and achieve the effects of shortening preparation time, convenient operation, and promoting flow

Active Publication Date: 2016-02-24
BEIJING AERONAUTIC SCI & TECH RES INST OF COMAC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it does not consider the issue of pore discharge inside the resin melt.

Method used

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  • Fiber-reinforced thermoplastic resin matrix composite laminate mold pressing method and mold pressing device
  • Fiber-reinforced thermoplastic resin matrix composite laminate mold pressing method and mold pressing device
  • Fiber-reinforced thermoplastic resin matrix composite laminate mold pressing method and mold pressing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] This embodiment provides a fiber-reinforced thermoplastic resin matrix composite laminate molding device and molding method. Such as figure 1 As shown, the molding device includes a mould, a heating assembly, a pressing assembly and an ultrasonic assembly; the heating assembly is used to heat the thermoplastic resin in the mould; the pressing assembly is used to provide pressure for the mould; the ultrasonic assembly includes an ultrasonic generation controller ( Not shown in the figure), the ultrasonic tool head 2 electrically connected with the ultrasonic generation controller and the clamping and loading mechanism 1, the clamping and loading mechanism 1 is used to clamp the ultrasonic tool head 2 and provide pressure for the ultrasonic tool head 2, the ultrasonic tool The head 2 is arranged beside the mould, and is used for ultrasonic treatment of fibers and thermoplastic resin in the mould.

[0047] More specifically, the mold includes an upper mold 3, a lower mold...

Embodiment 2

[0070] This embodiment discloses a fiber-reinforced thermoplastic resin-based composite laminate molding device and method. Wherein, the molding device includes a mould, a heating assembly and an ultrasonic assembly; the heating assembly is used to heat the thermoplastic resin in the mould; the ultrasonic assembly includes an ultrasonic generation controller 1 and an ultrasonic tool head connected to the ultrasonic generation controller, and the ultrasonic tool head is set Above the mold, it is used to ultrasonically treat the fiber and thermoplastic resin in the mold and to provide pressure to the mold. Preferably, a heat insulation layer made of low thermal conductivity material is arranged between the ultrasonic tool head and the upper mold. The structure of the mold can be set with reference to Embodiment 1, and will not be repeated here.

[0071] The difference between the molding method and the first embodiment is that the thermoplastic resin used in this embodiment is a...

Embodiment 3

[0081] This embodiment discloses a fiber-reinforced thermoplastic resin-based composite laminate molding device and method. Wherein, the structure of the molding device is the same as that described in the second embodiment, and will not be repeated here.

[0082] The difference between the molding method and Example 2 is that in step A, the carbon fiber reinforced polyphenylene sulfide resin layer used is laminated with alternately arranged carbon fibers and polyphenylene sulfide films. When preparing the laminate, 21 layers of carbon fiber Alternately laminated with the polyphenylene sulfide film and placed in the mold; in step C, step D, and step E, the thermoplastic resin is heated by heating the mold through the heating components arranged in the upper mold and the lower mold of the mold ; In addition, in step B2 and step D, the applied pressure is 1MPa, in order to realize the sufficient infiltration of polyphenylene sulfide resin to carbon fiber.

[0083] Other technol...

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PUM

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Abstract

The invention discloses a fiber-reinforced thermoplastic resin matrix composite laminate mold pressing method and a mold pressing device, belongs to the technical field of fiber-reinforced composites, and is designed for solving the problem of high porosity of a traditional fiber-reinforced thermoplastic resin matrix composite laminate. The fiber-reinforced thermoplastic resin matrix composite laminate mold pressing method uses an ultrasonic component for ultrasonically processing fibers and thermoplastic resins in a mold. Through ultrasonic vibration, the flowing of resin fluids can be promoted, the exhaust speed of gas in melts is accelerated, and the porosity of laminate parts is reduced; meanwhile, the ultrasonic vibration is applied to uniformly distribute the fibers to prevent mutual extrusion of the fibers caused by a pressure effect; and in addition, the mold pressing pressure can be reduced, the preparation time is shortened, and the residual stress of the laminate parts is reduced. The mold pressing device used in the mold pressing method, provided by the invention, is simple and compact in structure, and is convenient for operation.

Description

technical field [0001] The invention relates to the technical field of fiber-reinforced composite materials, in particular to a molding method and a molding device for fiber-reinforced thermoplastic resin-based composite material laminates. Background technique [0002] At present, in aviation, aerospace, automobile and other fields, the use of composite materials to prepare structural parts has become an important way and development trend of equipment lightweight. Among them, fiber-reinforced resin-based composite materials account for a considerable proportion. Taking civil aviation as an example, the amount of composite materials used in the new generation of commercial aircraft B787 and A350XWB of Boeing and Airbus has exceeded 50%. [0003] Compared with fiber-reinforced thermosetting composite materials, fiber-reinforced thermoplastic composite materials have lower density, good toughness, high service temperature, Low moisture absorption rate, good process performan...

Claims

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Application Information

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IPC IPC(8): B29C70/34B29C70/54
CPCB29C70/34B29C70/54
Inventor 刘建光岳广全薛佳马立敏张嘉振夏杰
Owner BEIJING AERONAUTIC SCI & TECH RES INST OF COMAC