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High-strength high-temperature-resistant composite material air inlet channel and forming method thereof

A technology of composite materials and molding methods, which can be used in the combustion of air intakes of power devices, other household appliances, and other applications. It can solve the problems of material selection and molding process limitations for air intakes, and achieve good process stability and structural strength. And the effect of improving temperature resistance and improving mechanical properties

Active Publication Date: 2021-09-24
AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a high-strength and high-temperature-resistant composite material intake duct and its forming method. The invention realizes the use of composite materials to form a high-strength and high-temperature-resistant intake duct, and solves the problem of limited material selection and molding process for the intake duct. question

Method used

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  • High-strength high-temperature-resistant composite material air inlet channel and forming method thereof
  • High-strength high-temperature-resistant composite material air inlet channel and forming method thereof
  • High-strength high-temperature-resistant composite material air inlet channel and forming method thereof

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Embodiment 1

[0031] This example is made as figure 1 In the air inlet of a high-strength and high-temperature-resistant composite material shown, the diameter of the outlet end is 300 mm, and the inlet end is elliptical with a long circle of 150 mm and a short circle of 80 mm. The wall thickness of the air inlet is 4mm. The composite material is quartz fiber / cyanate resin.

[0032] The forming process of the inlet duct is as follows: figure 2 As shown, the specific steps are as follows:

[0033] Step 1: According to the overall thickness d of the product 总 and operating experience, the number of layers is designed to be 4, and the calculated d 单 = 1 mm. Profile offset d using 3D model 单 The distance of is to get the outline shape of each cloth layer. designed using image 3 For the 2D weaving method shown, the cloth layers from the inner surface to the outer surface are recorded as cloth layers 1, 2, 3, and 4 in sequence;

[0034] Step 2: Prepare a set of profiling fabric, and br...

Embodiment 2

[0043] In this embodiment, a high-strength and high-temperature-resistant composite material inlet is made. The diameter of the outlet end is 300 mm, and the inlet end is elliptical with a long circle of 150 mm and a short circle of 80 mm. The wall thickness of the air inlet is 4mm. The composite material is quartz fiber / polyarylene resin.

[0044] The forming steps of the air inlet are as follows:

[0045] Step 1: According to the overall thickness d of the product 总 and operating experience, the number of layers is designed to be 4, and the calculated d 单 = 1 mm. Profile offset d using 3D model 单 The distance of is to get the outline shape of each cloth layer. designed using Figure 4 For the 2.5D weaving method shown, the cloth layers from the inner surface to the outer surface are recorded as cloth layers 1, 2, 3, and 4 in sequence;

[0046] Step 2: Prepare a set of profiling fabric, and brush the release agent on the surface of the mold;

[0047] Step 3: Put cloth...

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Abstract

The invention discloses a high-strength high-temperature-resistant composite material air inlet channel and a forming method thereof, and belongs to the technical field of composite materials. The wall surface is divided into a plurality of profiling cloth layers according to the wall surface thickness of the air inlet channel to be formed; outward deviation of the thickness of a single layer is sequentially carried out according to the molded surface of the air inlet channel, the contour shape of each profiling cloth layer is obtained, and each profiling cloth layer is woven through continuous fibers according to the contour shape of each layer; multiple layers of profiling cloth are sequentially laid on an air inlet channel male mold, and every two adjacent layers are connected through continuous fiber bundles in a sewing mode during laying; after a female mold and the male mold are assembled, resin is injected from a glue injection opening of the mold, and curing molding is conducted through a resin transfer molding process; and demolding is carried out after cooling, and heat treatment is carried out to obtain the high-strength high-temperature-resistant composite material air inlet channel. The high-strength and high-temperature-resistant air inlet channel is formed by adopting the composite materials, and the problem that the material selection and the forming process of the air inlet channel are limited is solved.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to a high-strength and high-temperature-resistant composite material inlet and a forming method thereof. Background technique [0002] The air inlets are divided into subsonic air inlets and supersonic air inlets according to the aircraft speed and operating conditions. Subsonic aircraft generally have a flight speed of Mach 0.7-0.8, and the flow and thermal conditions are not harsh. It is allowed to use low-temperature-resistant, low-strength composite materials such as glass fiber reinforced plastics as materials for the air inlet. With the increase of flight speed, the flow and mechanical and thermal conditions become harsh, especially the transonic and supersonic inlets need to meet the technical requirements of high temperature resistance and high strength, so the material selection of transonic and supersonic inlets can only be limited to High-temperat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/48B29C70/34B29C70/20B29C70/22B64D33/02B29L31/30
CPCB29C70/48B29C70/345B29C70/202B29C70/222B64D33/02B29L2031/30
Inventor 刘妍杜潮张春园
Owner AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
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