Method to produce pyrotechnical igniting mixtures
AssigneeNico-Pyrotechnik Hanns-Juergen Diederichs GmbH & Co. KG
InventorsUwe Krone, Dirk Cegiel
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Abstract
The invention relates to pyrotechnic primer charges produced on the basis of metal powders or metal hydride powders, potassium perchlorate and binders. In order to obtain a homogenous mixture, the powdery components are mixed with a liquid dispersing agent in a suspension with the aid of ultrasound and dosed having said consistency. Mixing for obtaining a suspension can also be carried out directly in a casing receiving the pyrotechnic primer charges.
Claims26
A method for producing explosive pyrotechnical igniting mixtures for a pyrotechnical igniting device, said mixtures comprising metal powders and/or metal hydride powders, potassium perchlorate and binding agents, said method comprising the steps of:
- a) preparing a plurality of separate, individual suspensions comprising a liquid dispersing agent, a binding agent and at least one of the metal powders, the metal hydride powders and the potassium perchlorate, wherein components of each prepared suspension do not react chemically alone or with each other;
- thereby to obtain a plurality of suspensions, each of which is not explosive or no more than marginally explosive;
- b) introducing said suspensions into a small mixing chamber while applying ultrasonic sound to the mixing chamber and the suspensions therein, mixing the suspensions homogeneously;
- c) dosing the mixed suspensions in a desired quantity immediately after the mixing to produce a pyrotechnic igniting device;
- and
- d) removing thereafter the liquid dispersing agent from the dosed, desired quantity of the mixed suspensions.
A method for producing explosive pyrotechnical igniting mixtures for a pyrotechnical igniting device, said mixtures comprising metal powders and/or metal hydride powders, potassium perchlorate and binding agents, said method comprising the steps of:
- a) preparing a plurality of separate, individual suspensions comprising a liquid dispersing agent, a binding agent and at least one of the metal powders, the metal hydride powders and the potassium perchlorate, wherein components of each prepared suspension do not react chemically alone or with each other
- thereby to obtain a plurality of suspensions, each of which is not explosive or no more than marginally explosive;
- b) introducing the suspensions in a dosed, desired quantity, for subsequent use of the pyrotechnical igniting mixture, into a housing for a pyrotechnical igniting device, which housing forms a small mixing chamber for the suspensions, while applying ultrasonic sound to the mixing chamber and the suspensions therein, mixing the suspensions homogeneously;
- c) removing thereafter the liquid dispersing agent from the dosed quantity of the mixed suspensions.
Dependencies are inferred from the claim text.