NITROGLYCERINE-FREE MULTI-PERFORATED HIGH-PERFORMING PROPELLANT SYSTEM

The propulsion system for the acceleration of projectiles is based on a multi-perforated grain propellant and is composed from nitrocellulose, a crystalline energy carrier of a nitramine type and an inert plasticizing additive. The number of perforations is 2 to 6, preferably 4. The propellant grain...

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Bibliographische Detailangaben
Hauptverfasser:	SCHAEDELI, ULRICH, ANTENEN, DOMINIK, VAMOS, ATTILA
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING AMMUNITION BLASTING CHEMISTRY EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION EXPLOSIVES EXPLOSIVES OR THERMIC COMPOSITIONS HEATING LIGHTING MANUFACTURE THEREOF MATCHES MECHANICAL ENGINEERING METALLURGY PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING USE OF SINGLE SUBSTANCES AS EXPLOSIVES WEAPONS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The propulsion system for the acceleration of projectiles is based on a multi-perforated grain propellant and is composed from nitrocellulose, a crystalline energy carrier of a nitramine type and an inert plasticizing additive. The number of perforations is 2 to 6, preferably 4. The propellant grains can have round or polygonic profiles, depending on the number of perforations. The preferred grain geometry is cubic with a rectangular grain profile. The nitramine compound contains a structural element of the general chemical structure formula R-N-N02, where R is a residual group. The nitramine compound is present in a concentration in the range from 0 to 35% by mass, in particular in the range from 5 to 25% by mass. The nitramine compound is preferably RDX. The inert plasticizing additive is a water-insoluble polyoxo compound, if necessary in combination with a substance containing carboxyl groups. In layers near the surface an increased concentration can be present. The inert plasticizing additive is present in a concentration of 0 to 10% by mass, preferred 0 to 5% by mass.