CARTRIDGE FOR CYLINDRICAL SHELLS EXPANSION Russian patent published in 1996 - IPC

FIELD: production of cartridges for cylindrical shells expansion. SUBSTANCE: 1. cartridge for cylindrical shells expansion has dielectric body with located in it explosive member made in the form of spiral and connected with current supply. The cartridge differs from others by the fact, that to increase effectiveness of cartridge operation, provision of capability to use optimal its sizes and unification of explosive member, simplification of cartridge production, expansion of its usage range the spiral is laid as Archimedian spiral and is made of metal foil strip and coils are isolated from each other by hygroscopic paper impregnated with dielectric liquid. 2. Cartridge is corresponding to point 1 and differs by the fact, that spiral coils are concentrated correspondingly in places of pressure localization. EFFECT: increased effectiveness of cartridge operation, provided capability to use optimal cartridge sizes and to unify explosive member.