Title:
METHOD FOR PRODUCTION OF STEEL MATERIAL HAVING EXCELLENT SCALE DETACHMENT PROPERTY, AND STEEL WIRE MATERIAL HAVING EXCELLENT SCALE DETACHMENT PROPERTY
Document Type and Number:
WIPO Patent Application WO/2007/020916
Kind Code:
A1
Abstract:
Disclosed is a method for producing a steel material which shows a reliable scale
adhesion property during cooling or storage/transport of the steel material
and shows an excellent scale detachment property during mechanical scaling
or acid pickling performed before secondary processing. The method comprises
heating a steel piece to perform hot compression of the steel piece, spraying
water vapor and/or mist water having a particle diameter of 100 μm or less
onto the hot-compressed steel material, and oxidizing the surface of the steel
material.
Inventors:
KURODA TAKESHI (JP)
SAKAI HIDENORI (JP)
TAKEDA MIKAKO (JP)
KOCHI TAKUYA (JP)
ONISHI TAKASHI (JP)
MARUO TOMOTADA (JP)
MINAMIDA TAKAAKI (JP)
SAKAI HIDENORI (JP)
TAKEDA MIKAKO (JP)
KOCHI TAKUYA (JP)
ONISHI TAKASHI (JP)
MARUO TOMOTADA (JP)
MINAMIDA TAKAAKI (JP)
Application Number:
PCT/JP2006/316021
Publication Date:
February 22, 2007
Filing Date:
August 14, 2006
Export Citation:
Assignee:
KOBE STEEL LTD (JP)
KURODA TAKESHI (JP)
SAKAI HIDENORI (JP)
TAKEDA MIKAKO (JP)
KOCHI TAKUYA (JP)
ONISHI TAKASHI (JP)
MARUO TOMOTADA (JP)
MINAMIDA TAKAAKI (JP)
KURODA TAKESHI (JP)
SAKAI HIDENORI (JP)
TAKEDA MIKAKO (JP)
KOCHI TAKUYA (JP)
ONISHI TAKASHI (JP)
MARUO TOMOTADA (JP)
MINAMIDA TAKAAKI (JP)
International Classes:
C21D8/06; B21B45/00; C21D9/52; C22C38/00; C22C38/04; C22C38/54
Foreign References:
| JPS58130226A | 1983-08-03 | |||
| JPH10158785A | 1998-06-16 | |||
| JPH05295484A | 1993-11-09 | |||
| JPH11172332A | 1999-06-29 | |||
| JPS5719172B2 | 1982-04-21 | |||
| JP2721861B2 | 1998-03-04 | |||
| JP2004115859A | 2004-04-15 |
Other References:
See also references of EP 1921172A4
None
None
Attorney, Agent or Firm:
KAWAMIYA, Osamu et al. (IMP Building 3-7, Shiromi 1-chome, Chuo-k, Osaka-shi Osaka 01, JP)
Download PDF: