Step cutting plane integral bursting type fragile cover and preparation method thereof

Abstract

The invention belongs to the technical field of missile launching and protection, and particularly relates to a step cutting plane integral bursting type fragile cover and a preparation method thereof. The fragile cover comprises a frame and a throwing-out body, and a joint of the frame and the throwing-out body is a weak area; the weak area is an area where fiber cloth between the frame and the throwing-out body is cut off in a stepped manner; and the fiber cloth in the cover body sub-cutting layers in the area is cut off according to circular tracks with different radiuses, and stepped gluing lap jointing is formed between the cover body sub-cutting layers. The fragile cover is simple in structure, light in weight and easy and convenient to operate, the fragile cover is integrally formed, cutting and reinforcing are not needed after forming, the air tightness, the pressure bearing performance and the weak area strength of the fragile cover can be adjusted by adjusting the number of steps, the width of the steps and the number of layers of the fiber cloth contained in each step, and therefore the fragile cover can bear pressure within a specific range, the fragile cover can be burst smoothly by missile fuel gas, and the fragile cover is a fragile cover with a novel structure.

Description

Technical field [0001] The invention relates to an integral piercing fragile cover with a step cut plane and a preparation method thereof, belonging to the technical field of missile launching and protection. Background technique [0002] The missile launching box cover is an important part of the missile launching system. It must be airtight within a certain pressure when the missile is stored and transported; it must be opened in time when the missile is launched to ensure the normal launch of the missile. The traditional missile launching box cover is mostly metal cover, and its opening method adopts mechanical opening or blasting opening (see US Pat.3970006,1976; US Pat.4333381,1982). Among them, the mechanical opening method has heavy weight and complicated opening mechanism. , Prone to mechanical failure and long opening time; while the blasting opening method has the disadvantages of high maintenance cost and damage to the electronic equipment in the warhead when the explo...

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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