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Injection molding process for continuous fiber composite material

An injection molding process and continuous fiber technology, which is applied in the field of continuous fiber composite injection molding process and fiber reinforced composite parts manufacturing, can solve the problems of poor mechanical properties of components and increase of continuous fibers, etc., to achieve strong manufacturing flexibility and production The effect of fast speed and flexible and adjustable process parameters

Active Publication Date: 2021-06-08
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a continuous fiber composite material injection molding process, realize the injection molding of continuous fiber reinforced thermoplastic polymer matrix composite material, and solve the problem that traditional injection molding cannot use continuous fiber increase and the mechanical properties of components are poor

Method used

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  • Injection molding process for continuous fiber composite material

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Embodiment Construction

[0030] Below in conjunction with accompanying drawing, the embodiment of the present invention is described in further detail:

[0031] as attached figure 1 As shown, a continuous fiber composite material injection molding process of the present invention, the main materials and parts include: injection material 1, continuous fiber 2, fiber frame 3, vertical hopper 4, vertical continuous fiber feed port 5, gear Box 6, motor 7, vertical barrel 8, vertical screw 9, vertical fiber tube 10, heater 11, nozzle 12, injection beam 13, horizontal injection port 14, mold 15, mold opening and closing device 16, vertical Type injection molding port 17, horizontal barrel 18, horizontal hopper 19, horizontal screw 20, horizontal fiber tube 21, horizontal continuous fiber feed port 22.

[0032] The injection material 1 can be nylon (PA), nylon 6 (PA6), nylon 66 (PA66), polypropylene (PP), polyethylene (PE), polystyrene (PS), polyphenylene sulfide (PPS) ), polycarbonate (PC), acrylonitrile-...

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Abstract

The invention discloses a fiber-reinforced thermoplastic polymermatrix composite material. The fiber-reinforced thermoplastic polymer matrix composite material has the advantages of low density, high designability, easiness in molding, good recyclability, corrosion resistance and the like, and is widely applied to the fields of aviation, high-speed rails, ships, automobiles and the like. Along with the increase of the fiber length, the mechanical property of the composite material is further improved. The problems that an existing composite material injection molding process aims at discontinuous fiber composite materials (short or long fibers), the mechanical property of a formed component is poor, and the formed component is difficult to serve as a bearing component are solved. The invention relates to an injection molding process for a continuous fiber composite material. Injection molding of the continuous fiber-reinforced thermoplastic polymer matrix composite material is realized through ingenious structural design and innovative manufacturing thinking, resource waste caused by fiber cutting is avoided, and the injection molding process has the advantages of high production speed, capability of molding complex geometry, high manufacturing flexibility, and wide application range, and has wide application prospect in the manufacturing of thermoplastic composite material parts.

Description

technical field [0001] The invention relates to the manufacture of fiber-reinforced composite parts, in particular to a continuous fiber composite injection molding process, which belongs to the technical fields of new materials and intelligent manufacturing. Background technique [0002] Fiber-reinforced thermoplastic polymer-based composites are typical new materials, which have the advantages of low density, designability, easy molding, good recyclability, corrosion resistance, and fatigue resistance. They are used in aircraft, high-speed rail, ships, automobiles, wind power, etc. The application in equipment is more and more extensive. According to the fiber length, it is generally divided into short fiber composite materials, long fiber composite materials and continuous fiber composite materials. As the fiber length increases, the mechanical properties are also improved. Injection molding is one of the main manufacturing processes of thermoplastic engineering plastics...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/00B29C45/13B29C45/10
CPCB29C45/0005B29C45/13B29C45/10
Inventor 李立军
Owner BEIHANG UNIV
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