Title:
HIGH-STRENGTH HOT-DIP GALVANIZED STEEL SHEET AND HOT-DIP GALVANNEALED STEEL SHEET HAVING FATIGUE RESISTANCE, CORROSION RESISTANCE, DUCTILITY AND PLATING ADHESION, AFTER SEVERE DEFORMATION, AND A METHOD OF PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO2002101112
Kind Code:
A3
Abstract:
The present invention provides: a high-strength high-ductility hot-dip galvanized steel sheet and hot-dip galvannealed steel sheet having high fatigue resistance and corrosion resistance; a high-strength hot-dip galvanized steel sheet excellent in ductility, which improves non-plating defects and plating adhesion after severe deformation, and a method of producing the same; a high-strength and high-ductility hot-dip galvanized steel sheet having high fatigue resistance and corrosion resistance; a high-strength hot-dip galvanized steel sheet and hot-dip galvannealed steel sheet having superior appearance and workability, which suppresses the generation of non-plating defects, and a method of producing the same; and a high-strength hot-dip galvannealed steel sheet and a high-strength hot-dip galvanized steel sheet, which suppress non-plating defects and surface defects and have both corrosion resistance, in particular corrosion resistance in an environment containing chlorine ion, and high ductility, and a method of producing the same.
Inventors:
FUJITA NOBUHIRO (JP)
AZUMA MASAFUMI (JP)
TAKAHASHI MANABU (JP)
MORIMOTO YASUHIDE (JP)
KUROSAKI MASAO (JP)
MIYASAKA AKIHIRO (JP)
AZUMA MASAFUMI (JP)
TAKAHASHI MANABU (JP)
MORIMOTO YASUHIDE (JP)
KUROSAKI MASAO (JP)
MIYASAKA AKIHIRO (JP)
Application Number:
PCT/JP2002/005627
Publication Date:
October 14, 2004
Filing Date:
June 06, 2002
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
FUJITA NOBUHIRO (JP)
AZUMA MASAFUMI (JP)
TAKAHASHI MANABU (JP)
MORIMOTO YASUHIDE (JP)
KUROSAKI MASAO (JP)
MIYASAKA AKIHIRO (JP)
FUJITA NOBUHIRO (JP)
AZUMA MASAFUMI (JP)
TAKAHASHI MANABU (JP)
MORIMOTO YASUHIDE (JP)
KUROSAKI MASAO (JP)
MIYASAKA AKIHIRO (JP)
International Classes:
C23C2/02; C23C2/28; C23C2/40; (IPC1-7): C23C2/02; C23C2/06; C23C2/28; C23C2/40; C23C8/14; C21D6/00; C21D8/02; C21D8/04; C22C38/18; C22C38/12
Foreign References:
| US6087019A | 2000-07-11 | |||
| EP0434874A1 | 1991-07-03 | |||
| US5019186A | 1991-05-28 | |||
| EP1002886A1 | 2000-05-24 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 017, no. 693 (C - 1144) 17 December 1993 (1993-12-17)
DATABASE WPI Section Ch Week 198115, Derwent World Patents Index; Class M24, AN 1981-26247D, XP002277817
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 12 29 October 1999 (1999-10-29)
DATABASE WPI Section Ch Week 199231, Derwent World Patents Index; Class M13, AN 1992-255836, XP002290932
DATABASE WPI Section Ch Week 199249, Derwent World Patents Index; Class M13, AN 1992-403547, XP002290933
DATABASE WPI Section Ch Week 198231, Derwent World Patents Index; Class M13, AN 1982-65115E, XP002290934
DATABASE WPI Section Ch Week 199117, Derwent World Patents Index; Class M14, AN 1991-123079, XP002290935
DATABASE WPI Section Ch Week 198115, Derwent World Patents Index; Class M24, AN 1981-26247D, XP002277817
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 12 29 October 1999 (1999-10-29)
DATABASE WPI Section Ch Week 199231, Derwent World Patents Index; Class M13, AN 1992-255836, XP002290932
DATABASE WPI Section Ch Week 199249, Derwent World Patents Index; Class M13, AN 1992-403547, XP002290933
DATABASE WPI Section Ch Week 198231, Derwent World Patents Index; Class M13, AN 1982-65115E, XP002290934
DATABASE WPI Section Ch Week 199117, Derwent World Patents Index; Class M14, AN 1991-123079, XP002290935
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