ELONGATED SHAPED CHARGE Russian patent published in 1997 - IPC

FIELD: demolition operation, specifically, separation or destruction of object by blast, for instance, while splitting large metal structures for scrap (written off surface and underwater ships, tanks, aircraft, etc!), crushing of rocks, plastic metal working and so on. SUBSTANCE: elongated shaped charge has profiled polymer sheath in the form of cylindrical tube with shaped recess having depth of 0.2-0.6 outer diameter of tube and beamwidth 60-130 deg and liquid explosive presenting mixture of oxidizer - waste of production of concentrated nitric acid or of oxidizers of rocket fuels on basis of nitrogen tetroxide, including substandard ones with water content up to 10% and with technological mechanical impurities up to 5% in sum and hydrocarbon propellant, for instance, kerosine or Diesel fuel. In this case volumetric ratio of oxidizer and fuel lies within interval (0.9-9.0):1.0. EFFECT: decreased cost of blasting operations.