Fragile cover with step cutting plane and overall breakthrough type and preparation method thereof

Abstract

The invention belongs to the technical field of missile launching and protection, and in particular relates to a step-cut plane-integrated break-through fragile cover and a preparation method thereof. The fragile cover includes: a frame and a throwing body. area; the weak area is the area where the fiber cloth between the frame and the throwing body is cut in steps; the fiber cloth in the sub-cutting layer of the cover in this area is respectively cut according to circular tracks of different radii, and between the sub-cutting layers of the cover Form a stepped glued lap joint; the invention has the advantages of simple structure, light weight, and easy operation, and the fragile cover is integrally formed without cutting and reinforcement after forming. The number of layers of fiber cloth contained in it can realize the adjustment of the airtight performance, pressure bearing performance and strength of the weak area of ​​the fragile cover, so that it can not only bear the pressure within a specific range, but also be successfully broken through by the missile gas flow. It is a new type of Fragile cover of the structure.

Description

technical field [0001] The invention relates to a ladder-cut planar overall breakthrough type fragile cover and a preparation method thereof, belonging to the technical field of missile launch and protection. Background technique [0002] The cover of the missile launch box is an important part of the missile launch system. During the storage and transportation of the missile, it needs to maintain airtightness within a certain air pressure; when the missile is launched, it needs to be opened in time to ensure the normal launch of the missile. Most of the traditional missile launch box covers are metal covers, and the opening method adopts mechanical opening or blasting opening (see US Pat.3970006, 1976; US Pat.4333381, 1982 for details), and the mechanical opening method has heavy weight and complicated mechanical structure. , prone to mechanical failure and long opening time; and the blasting opening method has disadvantages such as high maintenance costs and damage to elec...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems existing in the prior art, the present invention discloses a step-cut planar integrally broken-through fragile cover and a preparation method thereof. The fragile cover of the present invention passes the fiber cloth according to circular tracks of different radii during dipping. Cutting, forming a stepped glued joint to create a weak area, the process is simple and the quality stability is easier to control, which solves the defects of the prior art that are complicated in process, difficult to control in quality stability, and poor in practicability

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