Explosion hardening explosive and preparation method thereof

Abstract

The invention discloses an explosion hardening explosive and a preparation method thereof. The explosion hardening explosive is prepared from the following raw materials in parts by weight: 40-80 parts of cyclonite and / or pentaerythrite tetranitrate, 10-30 parts of tributyl acetocitrate and 10-30 parts of nitrocotton. The explosion hardening explosive has the beneficial effects that tributyl acetocitrate and nitrocotton as raw materials of the explosion hardening explosive have high intermiscibility; meanwhile, tributyl acetocitrate is non-toxic and is low in volatility; the finished explosive is high in water resistance and plasticity; the explosion hardening explosive contains additives; due to the addition of the additives, the low-temperature plasticity of the explosive is improved, so that the explosive is uniform in density, high in plasticity and easy to tablet; the explosion hardening explosive is stable in explosion property, high in explosion velocity, high in strength, excellent in normal-temperature and low-temperature plasticity, easy to bend and high in in adhesion and application to workpieces under normal temperature and low temperature conditions, and is capable of effectively ensuring the hardening effect of the workpieces.

Description

technical field [0001] The invention relates to the technical field of explosives, in particular to an explosive hardening explosive used in explosive hardening treatment of high manganese steel parts and a preparation method thereof. Background technique [0002] In order to improve the surface hardness of high-manganese steel parts and enhance their wear resistance, etc., the surface needs to be hardened. At present, mechanical methods or explosive hardening methods are often used to harden high-manganese steel parts. However, mechanical methods are inefficient and harden The effect is not ideal. [0003] Explosion hardening refers to the plastic deformation or structural change of the high manganese steel workpiece under the action of the explosion shock wave generated by the explosive explosion, which causes the hardness of the surface and deep layers of the workpiece to increase, and the grain dislocation of the workpiece increases under the action of the shock wave, an...

AI Technical Summary

Problems solved by technology

However, due to the poor plasticity of this explosive at low temperature, it becomes brittle and easy to crack, the viscosity decreases, the sticking property is not good, and the explosive hardening effect is relatively poor, so it cannot be used in colder places.