HOT DIP ZINC PLATED STEEL SHEET AND METHOD FOR PRODUCTION THEREOF

Title:

HOT DIP ZINC PLATED STEEL SHEET AND METHOD FOR PRODUCTION THEREOF

Document Type and Number:

WIPO Patent Application WO/2005/021823

Kind Code:

A1

Abstract:

A hot dip zinc plated steel sheet, which has a hot dip zinc plating layer having a flat portion formed on the surface thereof, wherein a coating film comprising compounds containing Zn, Fe and O is formed in the flat portion, the coating film has a average thickness (A) of 10 to 100 nm as determined from the elemental analysis thereof, and a value of [Fe]/([Zn]+ [Fe]) in the coating film is 0.002 to 0.25 wherein each of [Zn] and [Fe] represents a content (atom.%) of Zn or Fe in the coating film. The above hot dip zinc plated steel sheet is excellent in press working characteristics, adhesiveness and chemical treatment characteristics, and thus is suitable for use in an automobile and a household electrical appliance.

Inventors:

TAIRA SHOICHIRO (JP)
SUGIMOTO YOSHIHARU (JP)
MIYAKAWA YOICHI (JP)
GAMOU AKIRA (JP)
NAGOSHI MASAYASU (JP)
KAWANO TAKASHI (JP)

Application Number:

PCT/JP2004/012704

Publication Date:

March 10, 2005

Filing Date:

August 26, 2004

Export Citation:

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Assignee:

JFE STEEL CORP (JP)
TAIRA SHOICHIRO (JP)
SUGIMOTO YOSHIHARU (JP)
MIYAKAWA YOICHI (JP)
GAMOU AKIRA (JP)
NAGOSHI MASAYASU (JP)
KAWANO TAKASHI (JP)

International Classes:

C23C2/06; C23C2/26; C23C22/53; (IPC1-7): C23C2/06; C23C2/26; C23C22/06; C23C22/53

Foreign References:

JP2003138362A	2003-05-14
JP2003138364A	2003-05-14
JP2002256448A	2002-09-11

Other References: