Composite material bracket body and preparation method thereof

A composite material and body technology, applied in the field of bracket body preparation, can solve the problems of metal material bracket body density, long processing cycle, poor weather resistance, etc., achieve stable structure and size, good production consistency, and low cost Effect

Active Publication Date: 2013-10-09
BEIJING HANGTIAN XINFENG MECHANICAL EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a composite material bracket body and its preparation method, which can solve many problems such as high density, low strength, low specific modulus, long processing cycle, and poor weather resistance of the metal material bracket body.

Method used

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  • Composite material bracket body and preparation method thereof
  • Composite material bracket body and preparation method thereof
  • Composite material bracket body and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0014] Example 1 A preparation technology for lamination and molding of the composite material bracket body of the storage and transportation launching tube

[0015] The maximum diameter of the main body of the storage and transportation launching tube composite material bracket formed by the present invention is about 678 mm, the diameter of the round table is about 555.5 mm, the width of the rib is about 30 mm, and the total height is about 100 mm. The composite bracket body of the storage and transportation launch tube is molded by hot pressing, and the structure and size of the bracket body are guaranteed by the mold. The specific preparation process is as follows:

[0016] The first step is to design and manufacture the mold, punch and die according to the shape of the bracket body. The mold adopts semi-overflow vertical parting structure, the guide system adopts built-in guide pillars, and the ejection blocks are designed at the four installation table positions of the ...

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Abstract

The invention provides a composite material bracket body and a preparation method thereof, and the composite material bracket body is used for solving the various problems such as large density and low strength of a metal material bracket body. The composite material bracket body comprises three parts, namely an air-tight layer, a bearing layer and a structure layer, wherein the air-tight layer is formed by curing bisphenol A epoxy resin, methyl tetrahydrophthalic anhydride, a glass fiber surfacing mat and glass fiber plain cloth; the bearing layer is formed by curing 3K carbon fiber epoxy plain prepreg; the structure layer is formed by curing 12K carbon fiber epoxy plain prepreg. The preparation method of the composite material bracket body comprises the following steps: 1, designing and manufacturing a compression molding mold from the product structure; 2, performing layer lay-up design according to the structure of the bracket body; 3, cutting the prepreg; 4, simultaneously laying up upper and lower dies of the mold; 5, closing and curing; 6, demolding; 7, deburring and deflashing. The composite material bracket body has the advantages of stable product structure and product size, heat resistance, corrosion resistance and weight of only 1/5 of that of a metal material.

Description

technical field [0001] The invention relates to a preparation method of a bracket body, in particular to a preparation technology of a composite material bracket body. Background technique [0002] With the rapid development of aerospace technology, a large number of fuel engines have been used as power propulsion systems. Therefore, the bracket body, as a key component for carrying gas pressure, preventing the gas from directly scouring the aircraft and providing support and power propulsion, has been widely used in various aerospace launchers or launching devices. Taking the launch tube bracket body as an example, in addition to the above functions, it must also have many composite functions such as light weight, high strength, heat resistance, erosion resistance, and reusability. [0003] However, the traditional metal material bracket has heavy weight, low strength, long processing cycle and poor weather resistance. It needs special protection and treatment during stora...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B1/00B32B5/26B32B5/28B32B37/02B29C70/34B29C70/54
Inventor 白乐乐
Owner BEIJING HANGTIAN XINFENG MECHANICAL EQUIP
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