Electrolysis: processes – compositions used therein – and methods – Electroforming or composition therefor – Recording device
Patent
1997-01-16
1998-11-10
Gorgos, Kathryn L.
Electrolysis: processes, compositions used therein, and methods
Electroforming or composition therefor
Recording device
205 82, 205 83, 205137, 204212, 204238, 204264, 204273, C25D 100
Patent
active
058338284
ABSTRACT:
A method and an apparatus for thermal process control in electroforming stampers for the production of CD/LD data carriers or the like. The temperature of an electrolytic solution in an electroforming cell is maintained at a value nearest a specific maximum temperature by raising or lowering the temperature of the electrolytic solution in a storage tank provided outside of the electroforming cell as a function of the temperature measured in a cathode space of the electroforming cell. A temperature sensor is disposed in or near the cathode space adjacent an electrolyte injection nozzle in a space between the anode and cathode means for supplying signals to a control unit. The temperature sensor and the injection nozzle are preferably assembled into a single mounting unit. The electroforming process can thus be run with an optimum effectivity in the vicinity of a maximum permissible temperature of the electrolytic solution.
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Galyanoformung bei der Herstellung von Bildplatten; ProzeBuberwachung von Nickelsulfamatelektrolyten; pp. 61-63, Galvanotechnik 77(1986) No. 1. no month available.
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Patent Abstracts of Japan; C-905 Jan. 28, 1992 vol. 16/No. 33; Electrocasting Device; 3-243785(A) Canon Inc (72) Takayoshi Tsutsumi.
Gorgos Kathryn L.
Mayekar Kishor
Technotrans GmbH
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