Method and apparatus to prepare monobasic propellant charge powd

Details Method and apparatus to prepare monobasic propellant charge powd Method and apparatus to prepare monobasic propellant charge powd

1992-11-30

1993-10-12

Nelson, Peter A.

Ammunition and explosive-charge making

Loading fireworks and bursting charges

Implements

86 2011, 86 45, 264 33, 422163, F42B 320

Patent

active

052515311

ABSTRACT:
In the production of monobasic propellant charge powders with alcohol and ether as solvents there is the risk of ether bubbles forming in the propellant charge powder material, and those bubbles greatly reduce the quality of the propellant charge powder. The invention provides for cooling the propellant charge powder material prior to its leaving the extruder. To accomplish that, the extruder head (4) is provided with a cooling means. The invention is especially well suited for use in the preparation of monobasic propellant charge powders with alcohol and ether as solvents.

REFERENCES:
patent: 3855373 (1974-12-01), Swotinsky et al.
patent: 4102953 (1978-07-01), Johnson et al.
patent: 4120920 (1978-10-01), Cougoul et al.
patent: 4298552 (1981-11-01), Gimler
patent: 4326901 (1982-04-01), Leneveu et al.
patent: 4622000 (1986-11-01), Muller et al.
patent: 5068066 (1991-11-01), Muller et al.
patent: 5156779 (1992-10-01), McGowan

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