Title:
METHOD FOR CONTINUOUS STEEL CASTING
Document Type and Number:
WIPO Patent Application WO/2020/203715
Kind Code:
A1
Abstract:
A method for continuous steel casting is provided which can reduce the center segregation that occurs in slabs. In this method for continuous steel casting, defining a first interval within an interval in the slab drawing direction inside a continuous caster as the interval from a starting point where the average value of the solid phase rate along the thickness direction in the width center of the slab 18 is between 0.4-0.8, to an ending point where the aforementioned average value of the solid phase rate along the thickness direction in the width center of the slab is greater than the average value of the solid phase rate at the starting point and less than or equal to 1.0, the water density per surface area of the slab is set in the first interval between 50 L/m2xmin and 2000 L/m2xmin) and the slab is cooled by water.
Inventors:
IRIE SHUHEI (JP)
UEOKA SATOSHI (JP)
SUGIHARA HIROKAZU (JP)
FUKUDA HIROYUKI (JP)
ARAMAKI NORICHIKA (JP)
MATSUI AKITOSHI (JP)
OSUKA KENICHI (JP)
KOKUFU SHO (JP)
UEOKA SATOSHI (JP)
SUGIHARA HIROKAZU (JP)
FUKUDA HIROYUKI (JP)
ARAMAKI NORICHIKA (JP)
MATSUI AKITOSHI (JP)
OSUKA KENICHI (JP)
KOKUFU SHO (JP)
Application Number:
PCT/JP2020/013885
Publication Date:
October 08, 2020
Filing Date:
March 27, 2020
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B22D11/124
Foreign References:
| JPH071096A | 1995-01-06 | |||
| JP2001062550A | 2001-03-13 | |||
| JP2009297756A | 2009-12-24 | |||
| JP2012110898A | 2012-06-14 | |||
| JP2013244492A | 2013-12-09 | |||
| JPH08132203A | 1996-05-28 | |||
| JPH08192256A | 1996-07-30 | |||
| JPH08224650A | 1996-09-03 | |||
| JP2016028827A | 2016-03-03 | |||
| JP2008100249A | 2008-05-01 |
Other References:
ITSUO OHNAKA: "Introduction to computational heat transfer and solidification analysis - Application to casting process", 1985, MARUZEN CO., LTD., pages: 201 - 202
TOSHIO TESHIMA ET AL.: "Iron and steel", vol. 74, 1988, THE IRON AND STEEL INSTITUTE OF JAPAN, pages: 1282 - 1289
See also references of EP 3932586A4
TOSHIO TESHIMA ET AL.: "Iron and steel", vol. 74, 1988, THE IRON AND STEEL INSTITUTE OF JAPAN, pages: 1282 - 1289
See also references of EP 3932586A4
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JP)
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