METHOD OF EXTRACTION OF METAL LINING OF SHAPED CAVITY OF EXPLOSIVE CHARGE Russian patent published in 1996 - IPC

FIELD: unloading of ammunition. SUBSTANCE: shaped charge is secured in space and impulse magnetic field is set up in the space region above the lining with maximum magnetic field rise time not exceeding t = δ2o

σ_oμ_oπ/4 and maximum induction of magnetic field being not lower than , where δ_o - thickness of metal shaped lining; σ_o - lining material conductance; μ_o = 1,256•10^-6 H/m - permeability of vacuum; α - angle of half-opening of conical lining; s_sp - explosive spalling resistance. In particular case, explosive charge is heated before induction of the impulse magnetic field to temperature not exceeding the temperature of beginning of thermal decomposition of explosive. EFFECT: facilitated procedure. 2 cl, 1 dwg