Composite material emission box and preparation method thereof

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...

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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

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