Continuous casting method

Details Continuous casting method Continuous casting method

2006-10-10

2009-02-24

Lin, Kuang (Department: 1793)

Metal founding

Process

Shaping liquid metal against a forming surface

C164S459000

Reexamination Certificate

active

07493936

ABSTRACT:
A first inclined surface and a second inclined surface are provided on the inside of a mold to constitute a so-called two-step tapered mold. A mold powder is adjusted to have a total content of CaO component and SiO2component of not less than 50 wt %, and a content of F component of not more than 11 wt %. The inclination rates of the first and second inclined surfaces are set according to the basicity or solidification temperature of the powder to be used. The pore area of molten steel discharge ports of a dipping nozzle is set to not less than 2500 mm2to less than 6400 m2. The discharge angle of the molten steel discharge ports is set, based on the horizontal, obliquely downward to not less than 10° to not more than 35°. According to such a continuous casting method, solidification delay at angle parts of a bloom can be suppressed.

REFERENCES:
patent: 2000-158106 (2000-06-01), None
patent: 2002-35896 (2002-02-01), None
patent: 2003-305542 (2003-10-01), None
patent: 2003305544 (2003-10-01), None
patent: 2004-98092 (2004-04-01), None

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