THE BUILDUP OF ELECTROSTATIC CHARGES BY FALLING POWDERS. A PRELIMINARY REPORT
PICATINNY ARSENAL DOVER NJ FELTMAN RESEARCH LABS
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Many automatic loading machines permit explosives to fall freely through orifices. Since, however, numerous unexplained detonations have occurred in the course of this operation, measurements have been initiated to determine whether the falling powders can build up an electrostatic charge sufficient to initiate explosions. A simple system has been designed to determine to what extent the charge buildup depends on the nature of the falling powder, its size, its flow rate, or the orifice size, the orifice material, the orifice geometry, or other factors such as the effects of various pretreatments on the powder, e.g., drying, ballmilling, the relative humidity of the surrounding air, etc.
- Ammunition and Explosives