Process for the production of compacted explosive devices for ammunition or explosive charges, especially those of a large caliber
AssigneeDynamit Nobel Aktiengesellschaft
InventorsWolfgang Christmann, Gerhard Lindner, Paul Lingens
Life of this patent
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Abstract
Explosive charges are compacted under low pressure to form a shaped preform which is then further compacted under higher pressure in a manner which provides a homogeneous finished product.
Claims7
A process for the production of compacted explosive devices for large caliber ammunition or explosive charges which comprises compacting an explosive material under a low compacting pressure to form a pressed preform with a shaped configuration deviating from a final configuration of a finished pressed explosive device which is obtained by further compacting of the pressed preform, said pressed preform and said finished pressed explosive device having zones of differing thicknesses, further compacting the pressed preform in a finishing compacting step under a high compacting pressure to reduce the volume of the preform by 2 to 20%, the zones of the pressed preform of a smaller thickness being provided with dimensions almost the same as that of the finished pressed explosive device and the zones of the pressed preform having a larger thickness being formed with a larger excess dimension and during the finishing compacting step, a greater recompression being effected in a controlled manner in the zones of the larger thicknesses than in the zones of the smaller thicknesses to provide a homogeneous finished pressed explosive device.
A process for the production of a compacted explosive device which comprises:
- compacting an explosive material at a first pressure of between about 500 to 1,000 bar within an ammunition casing positioned in a press mold to form a pressed preform of said explosive material within said casing;
- and
- further compacting said preform within said casing at a second pressure higher than said first pressure so that the volume of the preform is reduced by 2-20% and the resulting compacted explosve device is free of fissures;
- the pressed preform and the compacted explosive device having zones of differing thicknesses and during the compacting of the pressed preform under the first pressure, the zones of the pressed preform of a smaller thickness being produced almost with the same dimensions as the finished pressed explosive device and the zones having a larger thickness being produced with a larger excess dimension and during the further compacting step, a stronger recompression being effected in a controlled manner in the zones of larger thicknesses than in the zones of smaller thicknesses of the pressed preform in order to obtain a homogeneous, finished, pressed explosive device.
Dependencies are inferred from the claim text.