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Title: Method for producing regular electronickel or S nickel rounds from electroplating baths giving highly stressed deposits
Abstract:
A permanent electrodeposition mandrel for use in making buttons or rounds of electrodeposited metal comprises a masked stainless steel plate having exposed islands of bare metal. Each of the islands has at least a recess in the bare metal surface at or near the perimeter of the island, the depth of the recess being about 0.12 mm to about 1.3 mm with the major dimension of the island being about 5 to about 50 times the depth of the recess and in the range of about 7 to about 50 mm. The mandrel is used in electrodeposition processes wherein thick deposits of high internal tensile stress metal are produced.
Other info: Inventors: Fisher, Gordon Lloyd (Mahwah, NJ, US) Application Number: 696209 Filing Date: 1976-06-15 Publication_date: 1977-08-09 Assignee: The International Nickel Company, Inc. (New York, NY) Primary Class(es): 205/67 204/281 Other Classes: US Patent Ref:
Other Refs:
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