METHOD AND DEVICE FOR PRODUCING ELONGATED SHAPED HIGH EXPLOSIVE CHARGES Russian patent published in 2017 - IPC F42B1/36 F42B3/87 

FIELD: weapons and ammunition.

SUBSTANCE: invention relates to the manufacture of elongated shaped high explosive charges (ESHEC), by equipping the metal tubular workpieces with powder detonating explosives (DE), followed by shaping of the filled workpieces for the charged hollow creation of the strictly desired shape and size. The method includes the operations of calculating the required amount of DE, selection of tubular workpiece size, workpiece filling with the calculated amount of explosive powder by means of vibration, shaping of the filled tubular workpiece by drawing through a series of dies with gradually approaching of the workpiece shape to the shape of the finished workpiece ESHEC. The drawing in two streams is carried out through the disc dies with two semi-enclosed gauges, formed by the shaped recesses at the lower and by protrubances at the upper discs, freely rotating at the bearing supports, drawing the third stream is carried out through a die with a caliber, in the clear equal to the cross section of the finished ESHEC. The device is designed in the form of split die, having a tapered part, passes into a cylindrical calibrating ring, and shaping recess, forcibly inserted into the die gauge and made in the form of deforming cylinder with a horizontal axis. The deforming cylinder has a knife with a front tapering to rest into the flare section of the die and a tail with an adjustable stop for fixing to the die body. In addition, two streams of drawing in the type of disk dies with two semi-enclosed gauges are introduced.

EFFECT: use of powerful DE and calibration of charge shape in the shell allows to produce high-effective ESHEC, which are widely used in the rocket production, construction and metalworking engineering, oil and gas industry for pipes cutting , metal structures, storage tanks of different purposes and sizes.

2 cl, 2 dwg