Modular explosive welding explosive charge unit and its modular charge laying method

Abstract

The invention discloses a modular explosive welding explosive charging unit, which comprises a cube-shaped grid charging unit composed of a wall surface and a bottom surface. There are three charge cavities, and the grids in the inner cavity of the grid charge unit are separated by hollow walls to form a structure that communicates with each other. It also discloses the modular charge paving method of this modular explosive welding explosive charge unit, selects the structural material whose physical and chemical properties match the explosive detonation wave propagation characteristics, and makes a series of length, width and height geometric dimensions into modules. The explosive charge unit is a chemically charged explosive, the binder is mixed with the powdery explosive and cast in the charge cavity to realize the solidification of the charge and form a modular charge. The invention casts the explosive welding explosive in the charging unit, thereby improving the current field charging operation into a production line charging, reducing the manual charging operation procedure and improving the safety of the explosive welding operation.

Description

technical field [0001] The invention relates to the field of civilian explosives and explosive equipment, mainly relates to the key technology for preparing metal composite materials in the field of special blasting, and specifically relates to a modular explosive welding explosive charge unit and a modular charge laying method thereof. Background technique [0002] Metal composite plates prepared by explosive welding technology can complement the excellent properties of heterogeneous metals such as physics, chemistry, and mechanics, and realize functional designs such as corrosion resistance, wear resistance, high specific strength, and saving precious metals. They are used as structural materials in petroleum and chemical pipelines. , pressure vessels, ships, nuclear industry and military armor and many other fields have been widely used, forming a larger industry. With the development of industrial technology, there is a wide demand for rare and precious metal composite m...

AI Technical Summary

Problems solved by technology

There are too many manual on-site field operations in the current laying method, which not only reduces the safety, but also generally has poor uniformity of charge thickness and density, which makes it difficult to guarantee the quality stability of the prepared metal composite materials. Limits the popularization and application of explosive composite metal materials

[0003] Chinese patent ZL 201310282589.4 discloses an explosive compound special structure explosive, which improves the charging method, can improve the thickness consistency of the explosive, and ensure the density and uniformity of the explosive, but the design of the charging cavity does not take into account the impact of the cavity wall material. Barrier Effects on Detonation Performance of Explosives

The cavity wall structure designed by this patent leads to the propagation of the detonation wave among the charge cavities through the explosive detonation. Compared with the natural propagation of the explosive detonation wave, it is equivalent to the introduction of interference factors, which are harmful to the explosive welding composite. The interface quality has a negative impact; and the thickness of the structural explosive developed by this patent is directly controlled by the height of the cavity. According to the size of the metal plate to be explosively welded, the pre-processed charge is formed, which is equivalent to customizing non-standard explosive products and cannot form quantitative products. Popularize and apply to explosive welding preparation of metal clad plates with different geometric sizes

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