Ammunition and explosive-charge making – Loading fireworks and bursting charges – By casting
Patent
1986-02-14
1988-03-15
Nelson, Peter A.
Ammunition and explosive-charge making
Loading fireworks and bursting charges
By casting
86 201, F42B 300
Patent
active
047305347
ABSTRACT:
The invention relates to a process for realizing the running-in of a fluid comprising at least an explosible component sensitive to shocks and/or rubbing.
The process of the invention consists in filling the moulds 2 with a specified quantity of casting powder P, in running-in a casting solvent S into the moulds 2 placed under reduced pressure, and in then curing the blocks thus cast to gel the casting powder. The running-in of the casting solvent S into the mould 2 from the storage tank 3, and the beginning and the end of this running-in of the casting solvent are controlled by controlling the pressure difference existing between the pressure prevailing in the storage tank and that prevailing in the mould 2. Thus, it is possible to control the running-in of the casting solvent into the moulds remotely.
The present invention applies especially in the industry for the manufacture of solid propellant compositions.
REFERENCES:
patent: 3600486 (1971-08-01), Walker et al.
patent: 3663148 (1972-05-01), Walker et al.
patent: 3706257 (1972-12-01), Collman
patent: 3943820 (1976-03-01), Persson
patent: 4014655 (1977-03-01), Brunnberg
patent: 4421004 (1983-12-01), Hallstrom et al.
Nelson Peter A.
Societe Nationale des Poudres et Explosifs
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