Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Coating moving substrate
Patent
1990-03-29
1992-01-21
Niebling, John
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Coating moving substrate
20412935, 2041294, 204DIG9, 205206, 205214, 205324, C25F 304, B41N 304, G03F 702
Patent
active
050825372
ABSTRACT:
A mechanically roughened substrate is conveyed through an electrolytic bath and is given a superposed electrochemical roughening, which is carried out by means of electrodes which are arranged in the electrolytic bath at a specific spacing from the substrate. The electrodes are connected to corresponding windings on the secondary side of a three-phase transformer. The corresponding windings on the primary side of the three-phase transformer are connected to a three-phase frequency converter, to which three-phase current is applied via leads. The three-phase frequency converter transforms the line frequency of the three-phase current supplied into a frequency range of about 50 to 300 Hz at a voltage of between about 1 and 380 V.
REFERENCES:
patent: 3691030 (1972-09-01), Stroszynski
patent: 4087341 (1978-05-01), Takahashi et al.
patent: 4272342 (1981-06-01), Oda et al.
patent: 4396468 (1983-08-01), Walls
patent: 4548683 (1985-10-01), Huang et al.
patent: 4897168 (1990-01-01), Boergerding et al.
Boergerding Heinz
Lehmann Peter
Stroszynski Joachim
Hoechst Aktiengesellschaft
Leader William T.
Niebling John
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