Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Depositing predominantly single metal or alloy coating on...
Patent
1993-04-07
1995-05-16
Niebling, John
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Depositing predominantly single metal or alloy coating on...
205111, 205113, 205179, 205180, C25D 514
Patent
active
054157617
ABSTRACT:
A process for electrochemically depositing a structured surface layer on a component, such as a machine component, particularly a steel water cylinder of a printing press, is disclosed. The process comprises the steps of defining an electrical parameter, such as a potential and/or an electrical current, effecting an electro-chemical layer deposition; and depositing a surface layer on the component with a structured outer surface topography. The depositing step is performed by providing an initial pulse of the electrical parameter and forming a plurality of island formations of deposition material on a surface of the component to be electro-chemically coated, and subsequently providing a follow-up pulse of the electrical parameter and causing a growth of the deposition material on the plurality of islands for causing the structured outer surface topography.
REFERENCES:
patent: 4869971 (1989-09-01), Nee et al.
patent: 5185073 (1993-02-01), Bindra et al.
Lowenheim, Electroplating, p. 129 1978 (no month).
Greenberg Laurence A.
Heidelberger Druckmaschinen AG
Lerner Herbert L.
Niebling John
Wong Edna
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