Composite material frangible cover enabling direction-pinpointed ejection and manufacturing method thereof

A composite material and fragile cover technology, which is applied in the direction of offensive equipment, rocket launchers, weapon types, etc., can solve the problems of throwing direction uncertainty, cumbersome use, and overall performance decline, and achieve simple and easy molding process, Easy to operate and good stability

Active Publication Date: 2015-08-26
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this kind of film cover has more layers of woven fabric, the film cover is thicker, and it is cumbersome to use, and the separation area is relatively large, which is easy to form internal defects, resulting in a decline in overall performance and difficult to control quality stability.
Therefore, there are certain limitations in the actual application of this type of launching box cover
[0004] At the same time, the large throwing area of ​​the composite fragile cover and the uncertainty of the throwing direction will also pose a potential threat to surrounding facilities

Method used

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  • Composite material frangible cover enabling direction-pinpointed ejection and manufacturing method thereof
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  • Composite material frangible cover enabling direction-pinpointed ejection and manufacturing method thereof

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Embodiment Construction

[0018] A directional throw composite material frangible cover, the preparation process of which comprises the following steps:

[0019] 1) Clean the mold, apply low-temperature grease on the mold, and stick polyester fragile plastic paper;

[0020] 2) Cut the glass fiber cloth according to the set size of the fragile cover. The main structure, that is, the material used for the frame 1 and the ejection body 4 is glass fiber two-way twill cloth;

[0021] 3) Configure epoxy resin glue;

[0022] 4) Lay layer by layer according to the laying order of [(0 / 90)(±45)(0 / 90)(±45)(0 / 90)(±45)(0 / 90)], and make each layer The glue penetrates the fiber cloth evenly;

[0023] 5) After curing at room temperature for 24 hours, heat treatment at 50°C for 3 hours, and demoulding after cooling;

[0024] 6) Divide the fragile cover prefabricated parts at the height of the separation area, leaving the conjoined area 3 undivided. The length of the conjoined area 3 is 1 / 12~1 / 8 of the 4th circumfere...

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Abstract

The present invention relates to a composite material frangible cover enabling a direction-pinpointed ejection and a manufacturing method thereof, belonging to the technical field of missile ejection and protection. The frangible cover herein comprises: a frame (1) and an ejection body (4), wherein the binding places of the frame (1) and the ejection body (4) are respectively a separation area (2) and a connection area (3), the separation area (2) being an area for glue treatment after segmentation between the frame (1) and the ejection body (4), on the internal side of the edge of the ejection body (4) within the separation area (2) being provided with a rectangular groove (5) which is filled with a AB glue therein, the ejection body (4) and the frame (1) being glued together on edges thereof with the AB glue, both the ejection body (4) and the frame (1) being adhered with an internal side fabric strip (6) and an external side fabric strip (7) via an epoxy resin glue on the internal and external sides thereof. The product of the present invention has the characteristics of simple structure, light weight and easy handling. The composite material frangible cover of the present invention has the characteristics of simple structure, light weight and easy operation, realizes a direction-pinpointed ejection of missiles under application of missile gas flow, and overcomes potential hazards of uncertain separation direction of the ejection body of the composite material frangible cover.

Description

technical field [0001] The invention relates to a directional throw composite material fragile cover and a preparation method thereof, belonging to the technical field of missile launch and protection. Background technique [0002] The design of the missile launching box cover is one of the important factors affecting the rapid response ability of the missile. Therefore, when developing the missile storage launching box, the design of the box cover is very important. The box cover is mainly able to withstand a certain pressure difference, has good sealing performance, and can be opened quickly when launching a missile. In order to meet the above requirements, the cover of the missile launching box used to use a mechanical cover, an explosive bolt opening cover, etc. (see US Pat. If the mechanical opening cover needs to be opened by a hydraulic system, the mechanism is complicated, which not only increases the weight of the launch box and delays time, the opening response o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F41F3/077
Inventor 蔡登安周光明王校培于健兰天宁
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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