Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Patent
1997-11-26
2000-06-06
Zimmerman, John J.
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
428659, 428679, 428935, 428632, B32B 1518
Patent
active
060716312
ABSTRACT:
The present invention has for its object to obtain a heat-resistant and anticorrosive multilayer metal-plated steel object which excels in the uniformity of high-efficiency processability and anticorrosiveness. The steel object provided by the present invention to achieve such object comprises a steel substrate, a Ni-layer plated over the surface of the steel substrate to a thickness of 0.2-10 .mu.m, a first Zn/Ni alloy layer plated over the Ni-layer to a thickness of 1-15 .mu.m from an acid bath, such as a chloride bath or sulfuric acid bath, with the Ni-content of the first layer being in the range of 2-20% by weight and a second Zn/Ni alloy layer plated over the first Zn/Ni alloy layer to a thickness of 1-10 .mu.m from an alkaline bath, with the Ni-content thereof being in the range of 2-20% by weight.
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Usui Kokusai Sangyo Kaisha Limited
Zimmerman John J.
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