Apparatus for roughening a substrate for photosensitive layers

Details Apparatus for roughening a substrate for photosensitive layers Apparatus for roughening a substrate for photosensitive layers

1992-11-20

1993-12-21

Niebling, John

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204228, 204DIG9, C25F 700

Patent

active

052718182

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: 2901412 (1959-08-01), Mostovych et al.
patent: 4533444 (1985-08-01), Oda et al.

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