A preparation method of explosive composite pipe with high energy utilization rate

Abstract

The invention provides a method with a high energy utilization rate for preparing explosion composite tubes. The method includes sequentially coaxially arranging first to-be-subjected-to-composition tubes, second to-be-subjected-to-composition tubes, third to-be-subjected-to-composition tubes and fourth to-be-subjected-to-composition tubes from the outside to the inside and filling spaces betweenthe second to-be-subjected-to-composition tubes and the third to-be-subjected-to-composition tubes with annular grains; detonating the annular grains to obtain the first explosion composite tubes andthe second explosion composite tubes. Compared with the prior art, the method has the advantages that the method includes simple procedures and is easy to operate; every two explosion composite tubeswith excellent welding quality can be obtained by means of one-step detonation, accordingly, the method is high in energy utilization rate, the experiment frequencies of can be reduced, and secondarypollution such as noise and vibration generated by experiments can be obviously reduced.

Description

technical field [0001] The invention belongs to the technical field of explosive welding, and in particular relates to a method for preparing an explosive composite pipe with high energy utilization rate. Background technique [0002] Explosive welding technology is a "cold" welding method that uses the impact force generated by the instantaneous explosion of explosives to make the cladding material collide with the base material at high speed, and then achieve metallurgical bonding between the metal surfaces to be welded. It is usually used for welding between metal materials with significant differences in chemical composition and physical properties, such as welding between metals such as titanium, copper, aluminum, and steel. Generally speaking, metallurgical bonding can be achieved by explosive welding if it is difficult to achieve connection with other welding methods. [0003] As one of the important branches in the field of explosive welding, intermetallic explosive...

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Problems solved by technology

In fact, this kind of rough experimental arrangement does not make full use of the energy released by the detonation reaction of explosives, and is usually accompanied by secondary pollution such as strong noise and vibration

[0005] For example, the Chinese patent with the application number CN201310651940.2 discloses a manufacturing process for explosive composite pipes, which uses explosive fibers as energy sources, wraps one explosive fiber spirally and evenly on the outer casing, and then explodes the other The fiber is inserted into the inner liner pipe, fixed with a plug with a hole, and the inner and outer explosive fibers are detonated at the same time after the water seal to obtain the corresponding explosive composite pipe. Although this method uses water as the pressure transmission medium, it greatly reduces the impact of the explosive on the liner. damage to the pipe wall, but the preparation of the explosive fiber used in the experiment is cumbersome and only one piece of welded explosive composite pipe can be obtained after one experiment, and the energy released by the reaction is not fully utilized; the Chinese patent application number CN200820215265.3 discloses a A method for preparing a zirconium-steel-zirconium three-layer explosive composite tube, which uses the zirconium tube as the surface layer of the load surface, and uses the steel plate as the other layer for bearing the load. After the central charge is detonated, the zirconium tube of the innermost layer is pushed, followed by Hit the steel pipe in the middle layer and the zirconium tube in the outermost layer. Although this method realizes the successful welding of three-layer metal pipes with one detonation, the experimental ideas are still limited in the traditional rough single-layer explosive composite pipe, and the explosive force is still not fully utilized. The energy released by the bombardment reaction

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