摘要:
Novel non-toxic, metallic-metal free, zinc peroxide-containing, IR tracer compositions are provided herein, which, when incorporated into a medium caliber IR tracer projectile and fired, produce a dim visibility IR trace. Such IR tracer compositions comprise from about 26 to about 30% by weight, or from about 65 to about 80% by weight, of zinc peroxide; from about 40 to about 47% by weight of potassium nitrate; from about 10 to about 25% by weight of a non-metallic fuel which consists of sodium salicylate; from about 5 to about 26% by weight of a retardant which consists of either iron carbonate or magnesium carbonate or calcium carbonate; and from about 5 to about 10% by weight of at least one binder which is either calcium resinate, or a synthetic resin binder which consists of a copolymer of hexafluoropropylene and vinylidene fluoride, or from about 5 to about 7.5% by weight of cellulose acetate butyrate. The total percentage of the ingredients adds up to 100%. Medium caliber, i.e., 0.50 caliber, IR tracer projectiles containing such IR tracer compositions are also provided.
摘要:
A novel non-toxic IR tracer composition is provided herein which, when incorporated into an IR tracer projectile which is then fired, generates a dim visibility IR trace. Such IR tracer composition is a non-toxic, metallic-boron- containing, IR tracer composition comprising: from about 20 to about 30 % by weight, or from about 45 to about 60 % by weight, of at least one of potassium chlorate or sodium nitrate; from about 5 to about 16 % by weight of a metallic fuel which consists of metallic boron; optionally, from about 15 to about 25 % by weight, or from about 40 to about 50 % by weight, of a non-metallic fuel which consists of sodium salicylate; from about 5 to about 20 % by weight of a retardant which consists either of iron carbonate, or magnesium carbonate or calcium carbonate; from about 5 to about 15 % by weight of a first binder which consists of calcium resinate; and up to about 7.5 % by weight of a second synthetic resin binder which consists either of a copolymer of hexafluoropropylene and vinylidene fluoride or cellulose acetate butyrate, wherein the total percentage of such ingredients add up to 100 %. A novel IR tracer projectile containing such IR tracer composition for generating a dim visibility IR trace is also provided.
摘要:
A primer composition with reduced toxicity suited for reduced-energy ammunition comprises bismuth (III) oxide as the principal oxidizer and contains a portion of propellant composition mixed therein. This composition may also be used in a cartridge which is otherwise substantially free of any other propellant compound and preferably produces a residue which is substantially free of toxic substances.
摘要:
A non-toxic primer composition for use in ammunition is provided with a hygroscopic oxidizer which is protected from absorption of water vapour by a water-barrier coating. A preferred oxidizer is potassium nitrate and a preferred coating is nitrocellulose.