FIELD: blasting operations. SUBSTANCE: shell is manufactured with simultaneous profiling, is treated chemically, thermally and (or) mechanically. It is filled with liquid explosive. Shell is manufactured from polymer by extrusion. In process of formation temperature in different zones of cylinder of extruder is kept within limits from 90 to 150 C. Temperature is uniformly increased from zone to zone as process approaches calibration head. In zones of calibration head temperature is kept at level reached at inlet to calibration device. EFFECT: facilitated manufacture. 2 cl
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