Low explosion velocity explosive for explosive welding

Abstract

The invention relates to a low explosion velocity explosive for explosive welding, which comprises the following components by weight percentage: 70-85 percent of No. 2 rock ammonium nitrate explosive, 10-25 percent of NaCl and 5-15 percent of water, and the components are uniformly mixed and prepared on the site. According to the low explosion velocity explosive, the explosion velocity of a common explosive is decreased, the use amount and the cost of a composite explosive for explosion are lowered; the low explosion velocity explosive overcomes the defects of over high explosion velocity and high probability of damaging the composite material low in the fusing point when the No. 2 rock ammonium nitrate explosive is directly used; explosives at different explosion velocities can be prepared according to different requirements of different materials on the explosion velocities on the site, and the technique is simple.

Description

[0001] Technical field [0002] The invention relates to an explosive, in particular to a low-detonation speed explosive for explosive welding and a preparation method. Background technique [0003] Explosive welding technology (usually called explosive compounding) uses explosives as energy sources, through the explosive detonation effect to collide one material (multilayer) with another material (base layer) at high speed to achieve the metallurgical combination of two metals, and the bonding zone appears as Corrugated metallurgical bonding. According to experience summary and scientific analysis, the explosive speed of explosive welding must be controlled within the range of 1500m / s-2800 m / s to ensure the quality of explosive welding. The detonation velocity of commonly used civilian explosives is generally 2800m / s-6500 m / s, so it is required to reduce the detonation velocity of explosive welding explosives. At present, the main methods for reducing the detonation velocity of...

AI Technical Summary

Problems solved by technology

The explosives prepared by the first two methods have high sensitivity, are unsafe, high in cost, and are prone to environmental pollution; the explosives prepared by the third method have poor stability and are prone to unstable detonation velocity; the explosives prepared by the fourth method are expensive , The process is complicated, and the explosion speed cannot be adjusted on site