FIELD: mining industry. SUBSTANCE: metal cutting process by explosive action with linear shaped charges, for instance, consists in cooling of metal to be cut to temperature of cold brittlness with liquid nitrogen, for example, before explosion to enhance blasting action. For this explosive with high detonation speed exceeding 7500 m/s is used. EFFECT: increased efficiency of action and safety of operation, reduced harmful effect on environment, decreased usage of explosives due to diminished strength of metal. 2 cl
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