COCOON CASE FOR SOLID-PROPELLANT CHARGE AND METHOD FOR ITS SECTIONAL DESTRUCTION Russian patent published in 2007 - IPC F42B33/06 

FIELD: manufacture of cocoon, glass-organoplastic rocket engine cases and destruction and salvaging of solid-propellant rocket engines.

SUBSTANCE: at manufacture of a cocoon, glass-organoplastic case of a solid-propellant rocket engine enclosure belts are installed in the points of its future cutting, destruction, they are installed on its inner surface. Each enclosure belt is grooved, a through duct is made in the groove bottom, placed and fixed in which for dismantling is the center body, the side members of the enclosure belt are fastened to the case and made of material, whose resistance to mechanical penetration of the cutting tool is higher than that of the case material. At a destruction of the solid-propellant charge fastened to the case, within the width of the enclosure belt, a strip of the solid-propellant rocket engine case above each enclosure belt is cut out and removed, the enclosure bets are opened up by dismantling of the center body, the slotted duct are opened for an access of a hydrojet tool to the surface of the solid-propellant charge, after that a hydrojet cutting of the solid-propellant charge is performed. After that the sections of the solid-propellant charge fastened to the case are separated.

EFFECT: provided protection of the solid-propellant charge against the cutting tool at a destruction cutting of the case in the points of installation of the enclosure belts, provided easy opening of the enclosure belts by dismantling of the, center body; at a hydrojet cutting of the solid-propellant charge through the slotted ducts of the enclosure belts the offered method makes it possible to obtain, sections of the solid-propellant charge fastened to the case with a maximum open area of its surface.

20 cl, 3 dwg