Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1979-02-01
1980-07-22
Mack, John H.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
20412943, 2041295, 2041297, B23P 114
Patent
active
042138345
ABSTRACT:
The electrochemical working method according to the invention comprises the use of two electrodes whereof one oscillates with respect to the other. Voltage pulses are applied to the electrodes in synchronization with the oscillation and are continued to be applied thereto when the electrodes are found at a minimum distance from one the other. As the electrodes are brought apart, cavitation is produced in the interelectrode gap, which phenomenon is accompanied by a change in the relative resistance of the gap. A cavitation transducer is used to measure a parameter which unambiguously determines the cavitation intensity corresponding to a preset minimum gap. In order to control the electrochemical treatment process, a comparator produces a signal equal to the difference between a signal corresponding to the actual relative value of the parameter function and formed by a computing unit, and a signal corresponding to a predetermined value of the parameter. The output signal of the comparator is used to control the width of the interelectrode gap and the pressure at its inlet, whereby one can effectively maintain the cavitation parameter and the relative resistance of the gap at a desired level.
REFERENCES:
patent: 3280016 (1966-10-01), Bass et al.
patent: 3567604 (1971-03-01), Bodine
patent: 4097710 (1978-06-01), Maillet
patent: 4160710 (1979-07-01), Greenwood
Bezrukov Sergei V.
Gimaev Nasikh Z.
Maximov Ivan V.
Rabinovich Vladimir B.
Semashko Andrei P.
Mack John H.
Valentine D. R.
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