Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Patent
1983-08-29
1985-02-26
O'Keefe, Veronica
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
428632, 428633, 428646, 428648, 428666, 428667, 428679, 428680, 220456, 220 81R, C25D 536
Patent
active
045018022
ABSTRACT:
A hydrated chromium oxide-coated steel strip which has a satisfactory weldability and resistance to corrosion under a lacquer coating and which is useful for producing welded cans and other containers, comprises a steel strip substrate, plated nickel base layers formed on the surfaces of the steel strip substrate and having a weight of 150-2500 mg per m.sup.2 of each surface of the substrate, hydrated chromium oxide-containing coating layers formed on the surfaces of the plated nickel base layers and having a weight of 2-20 mg, in terms of metallic chromium, per m.sup.2 of each surface of the substrate, and, optionally, plated tin intermediate layers formed between the plated nickel base layers and the chromate-containing coating layers and having a weight of 100-2000 mg per m.sup.2 of each surface of the substrate, the hydrated chromium oxide-containing coating layer optionally being composed of a metallic chromium underlayer in a weight of 10 mg or less per m.sup.2 of each surface of the steel strip substrate and a hydrated chromium oxide upper layer, the sum of the weights of the underlayer and the upper layer being 2-20 mg, in terms of metallic chromium, per m.sup.2 of each surface of the steel strip substrate.
REFERENCES:
patent: 3860398 (1975-01-01), Tsurumaru et al.
patent: 3978803 (1976-09-01), Asano et al.
patent: 4035248 (1977-07-01), Asano et al.
Lyman, T., Ed. Metals Handbook, vol. 2, 8th ed., Am. Soc. Metals, 1964.
Silman, H. et al., Protective and Decorative Coatings for Metals, p. 556, 1978.
Higuchi Seizun
Kamada Minoru
Nomura Yukio
Ooga Tomonari
Tsukamoto Yukio
Nippon Steel Corporation
O'Keefe Veronica
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