CONSUMABLE AMMUNITION ASSEMBLY HAVING A NITROGUANIDINE CASE AND METHOD OF MAKING A CONSUMABLE AMMUNITION ASSEMBLY HAVING A NITROGUANIDINE CASE
First Claim
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1. A consumable ammunition assembly, comprising:
- a projectile having a leading portion and a trailing portion;
a consumable cartridge body having a first end portion connected to the trailing portion of the projectile, and the body having a second end opposite the first end, wherein the body comprises approximately 55%-70% energetic material, approximately 20%-30% non-energetic structural fibrous material; and
8%-15% additives, and wherein the energetic material comprises approximately 90%-100% nitroguanidine and approximately 0%-10% other energetic material different than nitroguanidine;
a non-combustible base connected to the second end portion of the body and forming a closed bottom of the ammunition assembly; and
a propellant bed contained in the body and intermediate the projectile and the base.
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Abstract
The present disclosure describes various embodiments of nitroguanidine-based consumable ammunition assemblies and methods of producing and using these assemblies. In one embodiment, for example, a nitroguanidine-based consumable ammunition assembly can include a projectile, a Combustible Cartridge Cased body using nitroguanidine as the primary energetic material, and a composite case base interfacing with the CCC body.
10 Citations
21 Claims
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1. A consumable ammunition assembly, comprising:
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a projectile having a leading portion and a trailing portion; a consumable cartridge body having a first end portion connected to the trailing portion of the projectile, and the body having a second end opposite the first end, wherein the body comprises approximately 55%-70% energetic material, approximately 20%-30% non-energetic structural fibrous material; and
8%-15% additives, and wherein the energetic material comprises approximately 90%-100% nitroguanidine and approximately 0%-10% other energetic material different than nitroguanidine;a non-combustible base connected to the second end portion of the body and forming a closed bottom of the ammunition assembly; and a propellant bed contained in the body and intermediate the projectile and the base. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A consumable ammunition assembly, comprising:
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a projectile; a molded, consumable cartridge body having a first end portion connected to the projectile, and the body having a second end opposite the first end, wherein the body comprises nitroguanidine-based energetic material, and approximately 20%-30% non-energetic, fibrous material, and wherein the energetic material comprises approximately 90%-100% nitroguanidine. a non-combustible base connected to the second end portion of the body and forming a closed bottom of the ammunition assembly; and a propellant bed contained in the body and intermediate the projectile and the base. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A method of forming a fully consumable body for an ammunition assembly having the body intermediate a projectile and a non-consumable base, the method comprising;
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mixing a slurry containing the nitroguanidine-based energetic material, structural fibers, and additives, wherein the slurry is supersaturated with nitroguanidine in solution, and the slurry includes nitroguanidine in suspension; passing the slurry over and through a screen having a shape of the body; collecting the nitroguanidine-based energetic material, structural fibers, and additives on the screen in a substantially uniform thickness in the form of the body; removing the screen with the body thereon from the slurry; allowing the body to at least partially dry after removal from the slurry; and removing the body from the mold screen. - View Dependent Claims (19, 20, 21)
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Specification