Hot-galvanized steel product, notably intended to be phosphated, and method for preparing such a product
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United States of America Patent
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Jun 2, 1987
Grant Date -
N/A
app pub date -
Jul 3, 1985
filing date -
Jul 6, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Disclosed is a phosphated steel product and a method for producing the product. The method comprises passing at least one side of a steel strip through a molten bath of a metal selected from the group consisting of Zn-Al and Zn-Fe to form a first coating, electroplating a second coating consisting of essentially a pure metal selected from the group consisting of Mn, Fe and Ni onto the first coating and subjecting the exposed surface of the second coating to a phosphating treatment to form a phosphate coating on the second coating.
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