METHOD AND DEVICE FOR PIERCING OF OBSTACLE BY SHAPED CHARGE Russian patent published in 2001 - IPC

FIELD: designing and manufacture of warheads of ammunition with cumulative recesses, as well as perforation of oil, gas wells. SUBSTANCE: the method consists in blasting of an explosive charge and heating of the cumulative recess facing, the heating of the cumulative recess facing is accomplished before blasting of the explosive charge to t≅t_melt-t_ojet, where timelt-melting point of the facing material, tojet-jet temperature (without preheating). The device is a shaped charge containing an explosive charge with a cumulative recess, cumulative recess facing, initiating device and a power generator in the form of a heat energy generator in the form of a generator of hot gases with a gas vent to the inner surface of the cumulative facing and an exhaust manifold to the exhaust gas atmosphere located outside the zone of formation of the cumulative jet for action on the cumulative facing. EFFECT: enhanced depth of obstacle piercing. 3 cl, 1 dwg, 1 tbl