Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1977-08-05
1979-05-08
Tufariello, T. M.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204 1T, 204231, C25C 100, C25C 706, C25D 2112
Patent
active
041535219
ABSTRACT:
Disclosure is made of a method of automatic control and optimization of electrodeposition conditions through galvanostatic deposition of test deposits of metal in the course of continuous circulation of electrolyte, whereby the test deposits of metal are produced from both good and foul electrolyte, whereupon the deposits are dissolved at the same points of the process. The difference between the time intervals of complete of these deposits is then found and is indicative of the intensity of electrolysis, current efficiency, as well as overall efficiency of the process.
The proposed method is carried out with the aid of a device comprising units for measuring and corrosivity of the electrolyte, placed at the input and output of a series of baths, which units apply a signal to a computing unit, whereto there is also applied a signal from a unit for measuring the wattage consumed in the course of electrolysis, the signal from the computing unit being applied to an actuator which correspondingly changes the initial parameters of the process. Each means for measuring the corrosivity of the electrolyte is a three-electrode cell comprising a working electrode, an auxiliary electrode and a measuring electrode, which are connected to a current and time setting unit via a switch which ensures the flow of deposition and dissolution current between the working and auxiliary electrodes, as well as dissolution in the absence of current. The unit for measuring the corrosivity of the electrolyte, which is placed at the output of the series of baths, is coupled to the computing unit via a delay unit.
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patent: 3072557 (1963-01-01), Mandroian et al.
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patent: 3406101 (1968-10-01), Kilpatrick
patent: 3766042 (1973-10-01), Wilson
Anash Shulim A.
Borkov Gennady E.
Kim Larisa P.
Litvak Rafael S.
Nikiforov Anatoly E.
Nissen J. Harold
Tufariello T. M.
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