Stock material or miscellaneous articles – All metal or with adjacent metals – Porous
Patent
1981-09-28
1983-10-25
Lewis, Michael L.
Stock material or miscellaneous articles
All metal or with adjacent metals
Porous
204 40, 204 41, 428639, 428678, 428679, 428680, 428667, 428926, 428935, B32B 1501, C25D 304, C25D 312, C25D 356
Patent
active
044119615
ABSTRACT:
A composite electroplated article and process for making same comprising a body having a plurality of adherent electroplates of controlled thickness and composition thereon. The first layer comprises a nickel-iron alloy containing about 15 to about 50 percent by weight iron; the second layer comprises a nickel-containing plate of a sulfur content of about 0.02 to about 0.5 percent by weight; the third layer comprises a nickel-iron alloy containing about 5 to about 19 percent by weight iron but less iron than the first layer. Optionally, a decorative chromium outer layer is applied to the surface of the third layer, and preferably, an intervening nickel plate is interposed between the third layer and outer chromium layer of a type selected to induce micro-discontinuities in the outer chromium layer.
REFERENCES:
patent: 3090733 (1963-05-01), Brown
patent: 3703448 (1972-11-01), Clauss et al.
patent: 3994694 (1976-11-01), Clauss et al.
Lewis Michael L.
Mueller Richard P.
Occidental Chemical Corporation
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