Title:
STEEL PLATE, HOT-DIP STEEL PLATE AND ALLOYED HOT-DIP STEEL PLATE AND PRODUCTION METHODS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2000/050659
Kind Code:
A1
Abstract:
A sufficient inner oxidized layer can be formed on the ferrite surface layers of steel plates, regardless of steel constituent elements and a production history and despite radiation heating such as radiant tubes used in recrystallization annealing before hot-dipping, by heat-treating, after hot-rolling, blank billets with black scales deposited thereon in a reduction-restricted atmosphere and a temperature range of 650 to 950 DEG.C, thereby it is possible to impart an excellent hot-dipping and chemical conversion treating features to plating steel plates.
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Inventors:
KYONO KAZUAKI (JP)
UMINO SHIGERU (JP)
TOSAKA AKIO (JP)
NISHIMURA KEIJI (JP)
HAYASHI HIROMASA (JP)
UMINO SHIGERU (JP)
TOSAKA AKIO (JP)
NISHIMURA KEIJI (JP)
HAYASHI HIROMASA (JP)
Application Number:
PCT/JP2000/000975
Publication Date:
August 31, 2000
Filing Date:
February 21, 2000
Export Citation:
Assignee:
KAWASAKI STEEL CO (JP)
KYONO KAZUAKI (JP)
UMINO SHIGERU (JP)
TOSAKA AKIO (JP)
NISHIMURA KEIJI (JP)
HAYASHI HIROMASA (JP)
KYONO KAZUAKI (JP)
UMINO SHIGERU (JP)
TOSAKA AKIO (JP)
NISHIMURA KEIJI (JP)
HAYASHI HIROMASA (JP)
International Classes:
C21D8/04; C22C38/00; C22C38/02; C22C38/04; C22C38/12; C22C38/14; C23C2/02; (IPC1-7): C23C2/02; C21D9/46; C22C38/00; C22C38/14
Foreign References:
| JPH10287964A | 1998-10-27 | |||
| JPH10204580A | 1998-08-04 | |||
| JPH09287064A | 1997-11-04 | |||
| JPH06179943A | 1994-06-28 |
Other References:
See also references of EP 1076105A4
Attorney, Agent or Firm:
Sugimura, Akihide (2-4 Kasumigaseki 3-chome Chiyoda-ku, Tokyo, JP)
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