Moulding method of cassette composite material finished piece

A technology of composite materials and molding methods, which is applied in the molding field of box-type composite material parts, can solve problems such as difficult structural molding, poor surface quality, and difficult demoulding, and achieve difficult molding, excellent quality, and manufacturing accuracy. high effect

Inactive Publication Date: 2009-10-14
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems that the structural molding of box-type composite material pa

Method used

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  • Moulding method of cassette composite material finished piece
  • Moulding method of cassette composite material finished piece
  • Moulding method of cassette composite material finished piece

Examples

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Embodiment Construction

[0009] refer to figure 2 . Below in conjunction with accompanying drawing, further illustrate the present invention through embodiment. In the following examples, in order to ensure that the outer surface of the box-type composite material product is even and smooth and the overall shape and size of the product, a rigid female mold 1 should be selected, and a high-temperature-resistant rubber soft mold 3 should be selected as the male mold to simultaneously Control the inner and outer surface quality of box-type structural composite parts, and the parts can be demolded without damage after curing. First, prepare a lay-up mold consistent with the inner surface shape and inner cavity size of the target box-type product, and complete the lay-up of the box-type product blank 2 on the above-mentioned lay-up mold. After the blank is pre-compacted by vacuum, the workpiece is taken out from the lay-up mold, put into the rigid female mold 1, and then the elastomer flexible box-type ...

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Abstract

The invention discloses a moulding method of cassette composite material finished piece which aims at solving problems of cassette composite material finished piece, including huge structure moulding difficulty, poor moulding surface quality and demoulding difficulty. The moulding method of cassette composite material finished piece of the invention is realized by a technical solution as follows: a rigid female die and a male die which is a fireproof elastic flexible die, are selected; a laying die with an inner surface shape and an inner cavity size in accordance with those of the cassette finished piece is prepared; laying of the cassette finished piece is accomplished on the laying die and stock of the cassette finished piece is then fetched from the laying die; the stock of the cassette finished piece is loaded in the rigid female die and the elastic flexible cassette male die is loaded in the inner cavity of the stock; the female die, the stock and the male die are enveloped as an integral in sequence by vacuum inner and outer bags, wherein, the vacuum inner bag is placed in the inner cavity of the stock of the cassette finished piece and the vacuum outer bag coats the outer surface of the cassette finished piece; lacquer putty bars are used for openings of the two ends of the cassette finished piece, so as to adhere the vacuum inner bag and the vacuum outer bag as a closed space; and the cassette composite material finished piece is finally moulded by vacuum bag-autoclave technique.

Description

technical field [0001] The invention relates to a forming method of a box-type composite material product. Background technique [0002] In the prior art, the method of manufacturing carbon fiber reinforced resin matrix composites such as frames, ribs and beams, usually adopts image 3 Vacuum bag-autoclave method shown. This method is generally to put the steel male mold 1 on the template 6, and directly lay the prepreg blank 2 on the rigid male mold 1, and then cover the female mold made of air felt 4 flexible material on the blank 2, and directly Make a vacuum bag 5 on the female mold, and finally stick the vacuum bag on the template 6 with 7 pieces of putty, so that the vacuum bag 4 and the mold form a closed space together. Then through vacuum compaction, enter the autoclave for curing. This method of male lay-up and male curing is only applicable to image 3 The open and non-closed surface composite products shown, but for figure 1 For the closed box-shaped composit...

Claims

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Application Information

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IPC IPC(8): B29C70/34
Inventor 徐恒元程勇
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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