Preparation of an explosive and its texture interface explosive compression method

Abstract

The invention discloses preparation of skin explosive and an explosion lamination method of a texture interface. A base plate with a certain texture structure is arranged on the surface; an outwards-protruding or flat covering plate is pressed into a concave part of the base plate under the action of the skin explosive or other explosion energy; a convex part of a base plate material is sunk into a concave part of the covering plate, so that the tight combination is realized. The skin explosive has the characteristics of stable detonation performance and good viscoelasticity, stability, storage performance and the like, and can be prepared into rolls in advance to be stored, so that explosive distribution time is shortened and the continuous production of compounding metal boards is convenient to realize; the skin explosive can be compounded with metal materials, namely plates, rods, pipes and the like. A texture interface composite plate is subjected to the explosion lamination by adopting a manner of combining physical extruding deformation with a metallurgical bonding phase, and the physical and chemical properties of sheet materials on the two sides of a combining interface are not changed; the explosive amount of a unit area is small and the energy utilization rate is high. The explosion lamination method of the texture interface can be applied to the production of metal plates and thin plates, which have greater physical property difference, such as melting points.

Description

Technical field [0001] The invention belongs to the field of energetic materials and metal composites, and mainly relates to the preparation of "skin" explosives and the key technology of explosive bonding of texture interfaces. Background technique [0002] With the development of modern industry, the performance of single-component metal materials has been difficult to meet the requirements. Compared with a single metal, the laminated composite metal plate combines the advantages of each metal component and can obtain physical and chemical properties that a single metal does not have. performance. The main production methods of laminated composite metal plates include explosive welding, rolling, explosive welding + rolling composite method. The component composition and width of the composite plate produced by the rolling composite method are limited by the rolling capacity of the rolling mill. At present, the explosive welding method is widely used to produce the layered meta...

AI Technical Summary

Problems solved by technology

Explosive welding mostly uses powdered ammonium salt or ammonium oil explosives with low detonation velocity, but it is easy to form agglomerates of different sizes, and the thickness of the charge is uneven, which affects the repeatability and stability of the explosive welding process.

The amount of explosives per unit area of ​​explosive welding is large, the energy utilization rate is low, and the single welding area is only a dozen to tens of square meters, and it produces serious air pollution, noise pollution, explosion vibration and overpressure

The conditions required for explosive welding are harsh, and a good composite effect must be achieved within a narrow "explosion window". When the physical properties such as the density and melting point of the base layer and the cladding layer differ greatly, it is difficult to form an obvious sinusoidal waveform, and it is easy to produce Severe overmelting phenomenon and brittle intermetallic compounds, resulting in insufficient bonding strength and unqualified welding quality

[0004] In the published literature, patents, and materials, no report on the preparation of "skin" explosives and the explosive bonding method of the texture interface has been found.

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