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Composite material emission box and preparation method thereof

A composite material and launch box technology, used in launch devices, rocket launch devices, offensive equipment, etc., can solve the problems of limited extension length of nozzles, unguaranteed spraying uniformity of launch boxes, and high initial investment in automatic inner cavity spraying devices. , to meet the wall thickness requirements, the construction is simple, and the effect of ensuring the bonding effect

Active Publication Date: 2020-07-17
北京玻钢院复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is also unable to enter the launch box model with a small diameter and a large aspect ratio for spraying.
If a special automatic inner cavity spraying device is used, through the automatic probe-type retractable nozzle, as the cabinet rotates, the nozzle moves in the axial direction in the cabinet to spray the paint on the inner wall of the cabinet. The advantage is that the degree of automation is high, but the automatic The initial investment of the inner cavity spraying device is high; the automation control program is not universally applicable, and a set of automatic spraying programs can only be used for one type or products with very similar shapes and sizes; The effect is good, but the uniformity of spraying can not be guaranteed for launch boxes with rectangular cross-sections or special-shaped cross-sections; and the stretching length of the nozzle is limited

Method used

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  • Composite material emission box and preparation method thereof
  • Composite material emission box and preparation method thereof
  • Composite material emission box and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] In this embodiment, the material of the heat-proof layer is the room temperature vulcanized silicone rubber ablation-resistant coating BBTC-2516 produced by Beijing Glass Steel Institute Composite Material Co., Ltd.; the resin material of the composite material layer is vinyl resin, purchased from Shangwei (Shanghai ) Fine Chemical Co., Ltd., the product name is swancor-901; reinforcement material Changzhou Hongfa Zongheng customized multi-axial stitch-bonded glass fiber fabric.

[0046] A kind of preparation method of composite launch box described in the present embodiment, comprises the following steps:

[0047] S0. Mold treatment: Paste 0.18mm thick tetrafluoroethylene tape with a certain strength on the surface of the mold, and the seam of the tetrafluoroethylene tape is not perpendicular to the demoulding direction, and avoid the seam of the tape at the corner of the mold. There must be no air bubbles and no wrinkles when pasting, and the seams should be perfectly...

Embodiment 2

[0058] The preparation method of a kind of composite material launching box described in this embodiment, other steps are all the same as embodiment 1, the difference is that in step S2, between vacuum pouring vinyl resin material and spraying heat-proof layer material in step S1 6 hours apart.

Embodiment 3

[0060] The preparation method of a kind of composite material launching box described in this embodiment, other steps are all the same as embodiment 1, the difference is that in step S2, between vacuum pouring vinyl resin material and spraying heat-proof layer material in step S1 22 hours apart.

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Abstract

The invention provides a composite material emission box and a preparation method thereof. The preparation method comprises the following steps of spraying a heat-protection layer material on the surface of a mold, precuring the heat-protection layer material, and obtaining a heat-protection layer; overlaying a first stitched fabric on the heat-protection layer, infusing a resin material by vacuum, then co-curing the resin material and the heat-protection layer for forming, and forming a composite material inner layer on the heat-protection layer; overlaying a second stitched fabric on the composite material inner layer, infusing a resin material by vacuum, then curing and forming, and forming a composite material outer layer on the composite material inner layer; and separating a productfrom the mold, and obtaining the composite material emission box. According to the method, the construction method for preparing the small-bore composite material emission box with the heat-protectionlayer and a large slenderness ratio is simple; and according to the prepared emission box, an interface bonding effect of the heat-protection layer and the composite material layer is high, and the heat-protection layer can be demolded without damage.

Description

technical field [0001] The invention belongs to the technical field of composite material launch box molding, and in particular relates to a composite material launch box and a preparation method thereof. Background technique [0002] Missile box launch is that the missile is launched from a box-shaped container fixed on the launcher. The box-shaped container is the launch box. It has three functions: 1. As a transport box, the missile is placed on the guide rail in the launch box, and the buffer is used to And a positioning locking device to prevent the missile from being damaged by shock and vibration during transportation; 2. As a storage box, there is a temperature adjustment device in the box, filled with nitrogen and dry air, and the storage period can be extended after sealing; 3. As a launch box. Inside the case are launch rails, safety locking mechanisms and cables, and are connected to the launch control system for pre-launch checks, aiming and launch. Box-type la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/36B29C70/54F41F7/00F41F3/042F42B39/00F42B39/18
CPCB29C70/36B29C70/54F41F7/00F41F3/042F42B39/00F42B39/18
Inventor 陈雨林唐泽辉安昕陈博孟宪慧闫承磊
Owner 北京玻钢院复合材料有限公司
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