Anode electroplating cell and method
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United States of America Patent
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Jul 21, 1998
Grant Date -
N/A
app pub date -
Jun 6, 1996
filing date -
Aug 7, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An existing, usually used radial lead anode in an electroplating cell is machined to a specific radius. This provides a curved, machined surface for the lead anode to serve as a support structure. A thin gauge, dimensionally stable sheet anode of a multitude of side-by-side strip anodes is formed, with each strip anode being typically formed to a larger radius then the radius of the support structure. The sheet anode strips may be precurved into a series of chords. The strip anodes are flexed into place onto the surface of the lead support structure. Fastening these strips and the support structure together can be accomplished by a series of fastening means attached to the back of each strip anode, which means can project into or through holes in the lead support structure. Electrical connection can be provided, such as through the fastening means, with the lead support structure serving as a current distributor member. The lead support structure, which may be slightly soluble in cell electrolyte, is protected by the sheet anode. Moreover, the sheet anode is readily removable, such as for renovation of an active anode coating.
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