Galvanized steel sheet with layer particulate chromium and...

Details Galvanized steel sheet with layer particulate chromium and... Galvanized steel sheet with layer particulate chromium and...

C - Chemistry, Metallurgy

25

D

204/22

C25D 3/04 (2006.01) C25D 11/38 (2006.01)

Patent

CA 1239898

ABSTRACT OF THE DISCLOSURE An improved steel sheet, especially suitable for car-body fabrication, which is galvanized and further pro- tected by a layer of metallic chromium and hydrated oxides of chromium, electrolytically deposited. The improvement consists in that the metallic chromium is deposited in extremely fine particles that exert a very marked covering and protective effect on the underlying zinc. In this way, and with the help of the chromium oxides that further cover and protect the underlying layers, a product is obtained whose corrosion resistance is far superior to that of similar products.

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