EXTENDED SHAPED "QUASAR"-CHARGE Russian patent published in 2000 - IPC

FIELD: blast art, applicable in blast cropping of various objects of simple and complex configurations, for example, pipes, shafts, rails, channels, etc. SUBSTANCE: the invention represents an extended shaped charge, whose body is made of polymeric material with an inner surface corresponding to the shape of the disintegrated object for fitting on it. Made inside the body in the outline of the disintegrated object is a cavity profiled for the extended shaped charge and positioned at a focal distance from the cut surface. The cavity diameter and the focal distance in each of the separate sections of the cavity are determined by the material and thickness of the integrated object in each of these sections, nature of the explosive used, shape and dimensions of the cumulative recess. For filling the cavity with explosive in liquid physical state ducts communicating with the cavity are made in the body. EFFECT: enhanced efficiency of cropping of various objects, expanded range of objects. 8 cl, 4 dwg