Method of manufacturing plated steel sheet with zn-cr alloy plat

Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Coating predominantly single metal or alloy substrate of...

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205156, 205243, 205244, C25D 322, C25D 306, C25D 310

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054587646

ABSTRACT:
There is disclosed a method of manufacturing a plated steel sheet with a Zn--Cr alloy plating, including the steps of preparing a plating bath having a pH of 1 to 3 by adding 50 to 250 g/l of ammonium sulfate to a sulfuric acid plating bath and forming a Zn--Cr alloy plating film on a steel sheet using the resultant plating bath.

REFERENCES:
patent: 4597838 (1986-07-01), Bammel
patent: 4898652 (1990-02-01), Bammel et al.

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