Insensitive explosive molding powder, paste process
AssigneeDiehl Munitionssysteme GmbH & Co. KG
InventorsHeinz Hofmann, Karl Rudolf
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Abstract
Insensitive explosive molding powders are provided that include an explosive component, a binder and a plasticizer. The insensitive molding powders include explosive crystals that are bound by a binder system. Moreover, the insensitive high explosive molding powder of the present invention has a bi-/tri-/tetramodal grain composition comprising coarse grain (280-360 μm with an upper limit of 500-700 μm) and fine grain (e.g., 35-45 μm) explosive crystals that a bonded by a binder system comprising a plasticizer and a binder. The molding powder of the present invention is coated in waterless solvent process having a solvent content of less than 0.01 wt. % and is immediately ready for pellet pressing.
Claims19
An insensitive high explosive molding powder comprising an explosive component bound by a binder system, wherein
- said explosive component comprises coarse-grain and fine-grain explosive crystals comprising a bimodal, trimodal or tetramodal grain composition;
- said binder system comprises a binder and a plasticizer;
- and
- said powder is coated in a waterless solvent process having a solvent content of less than 0.01 wt %.
A method of forming an insensitive explosive molding powder comprising:
- preparing a lacquer comprising one or more organic solvents, a binder and a plasticizer;
- adding the lacquer and an explosive component to a mixing kettle;
- heating the kettle to a temperature from about 35° C. to about 40° C., while mixing at moderate agitation speeds;
- and
- removing the organic solvents by evacuation at a constant temperature of the ingredients of the kettle according to vaporization temperatures of the solvents, and at a rate that avoids boiling of the solvent.
Dependencies are inferred from the claim text.