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Manufacture Technology of Composite Material Small Box

A composite material and manufacturing process technology, which is applied in the field of manufacturing small box-shaped parts of composite materials, can solve problems such as insufficient pressurization pressure of soft molds, uneven thickness of parts, and difficult control of transfer effects, so as to avoid unstable effects , reduce production costs, and avoid tooling scrapping

Active Publication Date: 2014-10-15
SHENYANG AIRCRAFT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the workpiece blank has not reached the theoretical solidification state when the male mold is transferred to the female mold, the transfer effect is difficult to control, and because the parts are too small, the pressure of the soft mold is insufficient, so the small box-shaped structural part is at R after curing. There is poor resin in the shape, the uneven thickness of the part is difficult to control, and there are often quality problems in non-destructive testing, such as figure 1 and figure 2 shown

Method used

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  • Manufacture Technology of Composite Material Small Box
  • Manufacture Technology of Composite Material Small Box
  • Manufacture Technology of Composite Material Small Box

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] like image 3 and Figure 4 As shown, the manufacturing process of the small box of composite materials includes the following steps:

[0026] 1) Manufacture of mould: manufacture two sets of forming tooling, male mold and process cover plate;

[0027] 2) Lamination: lamination of composite small box-shaped parts on the male mold;

[0028] 3) Molding: The process cover covers the composite material small box and male mold inside.

[0029] like Figure 5 As shown, the manufacturing method of the process cover plate is as follows:

[0030] 1) Select 2 layers of AIRPAD rubber 3 and 6 layers of carbon fiber prepreg 4 to mix and cure to form a process cover plate. The process cover plate is disconnected at the end seal 1 and overlapped by 10mm. The hole isolation film is isolated, and the overlapping area 2 is formed at the end, and the process cover plate is consistent with the structure of the composite material small box;

[0031] 2) After the process cover is laid ...

Embodiment 2

[0034] like image 3 and Figure 4 As shown, the manufacturing process of the small box of composite materials includes the following steps:

[0035] 1) Manufacture of mould: manufacture two sets of forming tooling, male mold and process cover plate;

[0036] 2) Lamination: lamination of composite small box-shaped parts on the male mold;

[0037] 3) Molding: The process cover covers the composite material small box and male mold inside.

[0038] like Figure 5 As shown, the manufacturing method of the process cover plate is as follows:

[0039] 1) Select 2 layers of AIRPAD rubber 3 and 6 layers of carbon fiber prepreg 4 to mix and cure to form a process cover plate, disconnect the process cover plate at the end seal 1, and overlap 12.5mm, and use it between the upper and lower layers at the overlap The non-porous isolation film is isolated, and the overlapping area 2 is formed at the end, and the process cover plate is consistent with the structure of the composite materi...

Embodiment 3

[0043] like image 3 and Figure 4 As shown, the manufacturing process of the small box of composite materials includes the following steps:

[0044] 1) Manufacture of mould: manufacture two sets of forming tooling, male mold and process cover plate;

[0045] 2) Lamination: lamination of composite small box-shaped parts on the male mold;

[0046] 3) Molding: The process cover covers the composite material small box and male mold inside.

[0047] like Figure 5 As shown, the manufacturing method of the process cover plate is as follows:

[0048] 1) Select 2 layers of AIRPAD rubber 3 and 6 layers of carbon fiber prepreg 4 to mix and cure to form a process cover plate. The process cover plate is disconnected at the end seal 1 and overlapped by 15mm. The hole isolation film is isolated, and the overlapping area 2 is formed at the end, and the process cover plate is consistent with the structure of the composite material small box;

[0049] 2) After laying up the process cove...

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Abstract

The invention provides a manufacturing process for composite material packet parts. The manufacturing process comprises the following steps of: 1) producing moulds: producing two sets of molding tools comprising a male die and a technological cover plate; 2) laminating: laminating the composite material packet parts on the male die; and 3) molding: covering the composite material packet parts and the male die in the technological cover plate. By adopting the manufacturing process for the composite material packet parts, the appearance quality and internal quality in the manufacturing process can be ensured, the production cost is reduced, and the service life is prolonged.

Description

technical field [0001] The invention relates to a manufacturing process of a small composite material box, in particular to a processing method for ensuring the appearance quality and internal quality of the composite material small box during the manufacturing process. Background technique [0002] Composite small box-shaped parts generally have the following characteristics: the size of the parts is small, the length is mostly a slender structure with a length of no more than 300mm, there are steps or large surface changes in the shape, and there is an assembly relationship. [0003] The original processing method is to transfer the positive mold to the female mold for curing and molding after stacking, and then use the rubber soft mold to expand to ensure internal pressure. However, since the workpiece blank has not reached the theoretical solidification state when the male mold is transferred to the female mold, the transfer effect is difficult to control, and because th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/34
Inventor 刘德礼徐露露程宇
Owner SHENYANG AIRCRAFT CORP
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