Title:
INTRA-MOLD FLOW CONTROL DEVICE AND INTRA-MOLD FLOW CONTROL METHOD FOR THIN SLAB CASTING
Document Type and Number:
WIPO Patent Application WO/2019/235613
Kind Code:
A1
Abstract:
This intra-mold flow control device for thin slab casting of steel is an intra-mold flow control device used in thin slab casting of steel having a short-edge thickness of the meniscus not exceeding 150 mm, and a casting width not exceeding 2 m, and comprises: a DC magnetic field-generating unit; an immersion nozzle having a slit formed in the bottom thereof so as to open onto the exterior, the slit joining with the bottom of a discharge hole, wherein the discharge hole and the slit are present in the DC magnetic field zone. The magnetic flux density B (in T) of the DC magnetic field zone and the distance L (in m) from the lower edge of he immersion nozzle to the lower edge of the core satisfy formula (1) and (2). Formula (1): 0.35 T≤B≤1.0 T, Formula (2): L≥0.06 m
Inventors:
HARADA HIROSHI (JP)
IKEDA KEITA (JP)
SAKAMOTO MASASHI (JP)
ITO YUI (JP)
TAKAYAMA TAKUYA (JP)
IKEDA KEITA (JP)
SAKAMOTO MASASHI (JP)
ITO YUI (JP)
TAKAYAMA TAKUYA (JP)
Application Number:
PCT/JP2019/022726
Publication Date:
December 12, 2019
Filing Date:
June 07, 2019
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
B22D11/04; B22D11/10; B22D11/115
Foreign References:
| JP2003033847A | 2003-02-04 | |||
| JPH09285854A | 1997-11-04 | |||
| JP2001001115A | 2001-01-09 |
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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