Forming and assembling method of a composite material reflector

A composite material and assembly method technology, which is applied to household appliances, other household appliances, household components, etc., to avoid skin wrinkles, reduce manufacturing costs, and ensure accuracy.

Active Publication Date: 2022-05-27
XIAN AIRCRAFT IND GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of surface precision control of composite material reflectors and provide a molding and assembling method for composite material reflectors

Method used

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  • Forming and assembling method of a composite material reflector
  • Forming and assembling method of a composite material reflector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Implementation Example 1: A Satellite Main Reflector

[0028] Main materials: carbon fiber unidirectional tape prepreg M40J, film REDUX 312UL, porous aluminum honeycomb core BC1.8-3 / 8P-15, foam adhesive FM410-1, structural adhesive EC2216B / A, dry glass cloth EW100, adhesive AO-3

[0029] 1) Upper and lower skin forming

[0030] Using the reflective surface 1 forming mold as the mold body, use carbon fiber prepreg and NOMEX honeycomb core to manufacture a composite material dummy for forming the upper skin 7, and then lay the lower skin 6 ( working surface) and upper skin 7 prepreg, the prepreg is paved with 50mm narrow tapes, and the narrow tapes are connected by butt splicing, the number of layers is 4, and the angle is [0° / +45 ° / -45° / 90°] symmetrical. During the laying process, it is required that each layer must be vacuum compacted. After the last layer of the lower skin is laid, the outermost layer is laid and peeled off. After the laying is completed, the bag is...

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Abstract

The invention provides a molding and assembling method of a composite material reflector. The lower and upper skins of the reflecting surface of the reflector are formed by narrow-band paving. Aging treatment, the assembly of the reflective surface and the back rib adopts the integrated tooling of molding and bonding, the reflective surface is uniformly pressurized by calibrating the positioning of the embedded parts and making a vacuum bag in the edge margin area, and the reflective surface and the back rib as well as the back rib and the back rib are used at room temperature Curing the structural adhesive for bonding, and laying the glass cloth reinforcement corner piece in the glue joint position by wet method. The forming and assembling method provided by the invention solves the problem of surface precision control of the composite material reflector and ensures the structural stability of the reflector.

Description

technical field [0001] The invention relates to the field of composite material forming and manufacturing, in particular to the forming and assembling technology of composite material reflectors applied in the aerospace field. Background technique [0002] In recent years, with the continuous progress of science and technology, material technology has developed rapidly. As a new type of material, composite materials have unique properties such as high specific strength, high specific modulus, heat resistance, corrosion resistance, fatigue resistance, and good stealth. has been widely used. After aluminum, steel and titanium, advanced composite materials have rapidly developed into one of the four major structural materials, and their dosage has become one of the advanced signs of aerospace structures. [0003] The lightweight of satellite structure is very important to the satellite function and launch cost, and the selection of composite materials is an effective way to r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/34B29C70/44B29C70/70B29C70/88B29C70/54B29L31/30
CPCB29C70/342B29C70/44B29C70/70B29C70/887B29C70/54B29C70/541B29K2715/003B29L2031/3097
Inventor 张静郭俊刚徐小伟胡杰雄
Owner XIAN AIRCRAFT IND GROUP
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