Explosive protection pre-tightened protection layer and method for explosive protection

Abstract

The invention discloses an explosive component protection pre-tightening protective layer. The explosive component protection pre-tightening protective layer is a sleeve component made of a material with thermal contraction performance; the material with the thermal contraction performance is characterized in that when being heated to 60-180 DEG C, the material is changed to be an elastic state from a glass state. After the above protective layer is heated to 60-180 DEG C, load is applied to the inner wall of the protective layer outwards; the inner cavity of the protective layer is expanded; the protective layer is cooled and moulded for use; then the protective layer with the expanded inner cavity is wrapped on an explosive component, then is heated to 60-180 DEG C; the protective layer contracts and clings to the explosive component closely; then the protective layer is cooled to room temperature so as to finish protection for the explosive component. According to the explosive component protection pre-tightening protective layer, the protective layer has thermal contraction performance and high-rigidity, so that adherence between the protective layer and the explosive component is effectively improved; and meanwhile, displacement of charged powder in the cavity is reduced, so that the protection effect for the explosive component is enhanced, and the safety performance of a payload is effectively improved.

Description

technical field [0001] The invention relates to the technical field of explosives, in particular to a protective pre-tightened protective layer for explosives and a method for protecting explosives. Background technique [0002] As the requirements for the stability of the charge of the warhead are getting higher and higher, it is particularly important to carry out protective pretreatment on the explosives loaded inside the warhead. At present, protective pretreatment is mostly carried out by coating with a polymer protective layer. In order to ensure the close fit between the protective layer and the explosive, the inner diameter of the protective layer is required to be smaller than the diameter of the explosive during design, which makes the protective pretreatment of the explosive more difficult. At the same time, the currently used protective layer has large deformation, unsatisfactory rebound performance, and insufficient self-preloading, which cannot guarantee the cl...

AI Technical Summary

Problems solved by technology

At present, protective pretreatment is mostly carried out by covering with a polymer protective layer. In order to ensure the close fit between the protective layer and the explosive parts, the inner diameter of the protective layer is required to be smaller than the diameter of the explosive part during design, which makes the protective pretreatment of explosive parts more difficult.

At the same time, the currently used protective layer has large deformation, unsatisfactory rebound performance, and insufficient self-pretensioning, which cannot guarantee the close fit of the warhead with explosives during storage, transportation and working conditions, resulting in a relatively poor protection effect on explosives. Difference

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