Method of manufacturing plated steel sheet with zn-cr alloy plating
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United States of America Patent
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Oct 17, 1995
Grant Date -
N/A
app pub date -
Jan 27, 1994
filing date -
Aug 10, 1993
priority date (Note) -
Expired
status (Latency Note)
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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.
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