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A multi-structure composite material preform and its composite forming manufacturing method

A composite material and composite forming technology, which is applied in chemical instruments and methods, lamination auxiliary operations, metal layered products, etc., can solve the problems of single material system and simple structure

Active Publication Date: 2021-05-04
CHINA ACADEMY OF MACHINERY SCIENCE & TECHNOLOGY +2
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] In order to solve the problems of single material system and simple structure of the existing composite material components, the present invention provides a multi-structure composite material prefabricated body and its composite forming manufacturing method. Through the combination of weaving process, printing process and spunlace process, it can be prepared Composite prefabricated body consisting of braided structure, lattice structure and short fiber structure

Method used

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  • A multi-structure composite material preform and its composite forming manufacturing method
  • A multi-structure composite material preform and its composite forming manufacturing method

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Embodiment

[0032]EXAMPLES: Multi-structure composite prefabrication with a space, 80 mm thick, and a height of 120 mm. The upper woven structure has a thickness of 16mm, X to yarn, Y to the yarn, the fiber specification T300 3K, the layer density 40 layers / cm; Z to the yarn selected carbon fiber, fiber specification T300 6K, 2 joint, Z to the center of the wire 2.0mm from. The bottom layer has a thickness of 10 mm, X-direction fiber, Y to fibers, silicon carbide fibers, fibers 6K, layer density 16 layers / cm; Z to fibers, carbon fibers, fibers T3006K, and Z to 3.0 mm. The medium-level dot matrix structure has a thickness of 50 mm, and the fibers are selected for carbon fibers, and the fiber specification T300 3K, the thermoplastic resin is used to select polypropylene, and the dot matrix type is X-type. Outer short fiber structure thickness 4mm, carbon fiber felt 50g / m2The metal short fiber mass content is 4.1%, and the silicon carbide short fiber mass content is 9.7%.

[0033]Specific imple...

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Abstract

The invention discloses a multi-structure composite material prefabricated body composed of a bottom layer braided structure, a middle layer lattice structure, an upper layer braided structure and an outer short fiber structure, wherein the upper layer and the bottom layer braided structure are formed by a weaving process, and the middle layer lattice structure is formed by The continuous fiber printing process is formed, and the outer short fiber structure is attached to the upper weaving structure through the spunlace process to form a non-layered composite material prefabricated body containing multiple structures. The method has the advantages of short forming cycle, simple operation, low cost and strong adaptability.

Description

Technical field[0001]The present invention relates to a multi-structural composite preform structure and a composite forming method thereof, belonging to a composite preform system. The method can prepare a composite preform consisting of a knitting structure, a dot matrix structure, and a short fiber structure by a combination of knitting processes, printing processes, and water hazel processes.Background technique[0002]The composite member has the advantages of high ratio strength, high ratio, impact resistance, and can achieve material / design / manufacturing integration, widely used in aerospace, transportation and ship transportation. The conventional composite member is mainly composed of a single structure, and the forming process is mainly completed. With the increasing application of composite applications, the composite material is developed towards the integration of structural functions, and the traditional process method is difficult to meet the application requirement...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B9/00B32B9/04B32B15/14B32B37/10B32B37/00B32B38/14
CPCB32B5/02B32B5/06B32B9/047B32B15/14B32B37/00B32B37/10B32B38/145B32B2262/10B32B2262/103B32B2262/106
Inventor 单忠德张群孙正刘丰李志坤缪云良
Owner CHINA ACADEMY OF MACHINERY SCIENCE & TECHNOLOGY
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