PROPELLANT CHARGE OR GRAIN

The invention is directed to a method for the preparation of a propellant charge or grain, and to uses of the propellant charge or grain.The method of the invention comprises additive manufacturing of multiple distinctively identifiable print layers to produce a layered propellant charge or grain, w...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	STRAATHOF, Michiel Hannes, VAN DRIEL, Christoffel Adrianus
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AMMUNITION BLASTING CHEMISTRY EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION EXPLOSIVES EXPLOSIVES OR THERMIC COMPOSITIONS HEATING LIGHTING MANUFACTURE THEREOF MATCHES MECHANICAL ENGINEERING METALLURGY USE OF SINGLE SUBSTANCES AS EXPLOSIVES WEAPONS
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Beschreibung
Zusammenfassung:	The invention is directed to a method for the preparation of a propellant charge or grain, and to uses of the propellant charge or grain.The method of the invention comprises additive manufacturing of multiple distinctively identifiable print layers to produce a layered propellant charge or grain, wherein two or more of said layers each comprise at least one energetic material and a liquid curable binder, wherein the linear burn rate of an energetic material in a first layer is different from the linear burn rate of an energetic material in a second layer, and wherein each of said layers has a layer thickness in the range of 1-2000 µm, wherein said additive manufacturing comprises layer by layer curing of liquid curable binder material by radiation.