Metal founding – Process – Shaping liquid metal against a forming surface
Reexamination Certificate
2009-03-16
2010-06-15
Lin, Kuang (Department: 1793)
Metal founding
Process
Shaping liquid metal against a forming surface
C164S504000
Reexamination Certificate
active
07735544
ABSTRACT:
A method and an apparatus are provided for electromagnetic stirring during a continuous casting process, especially for casting a billet and bloom of medium and high carbon steels. The method and apparatus provide a higher surface quality of the ingot, reduce the entrapping of nonmetallic inclusions into the ingot, and suppress issues regarding central segregation and central porosity. The method provides an improvement in the stirring process from the meniscus to the crater end—and relates to in-mold stirring and stirring in a zone of secondary cooling and up to the crater end. The in-mold stirring is geared towards the suppression of meniscus disturbance, for submerged casting, in particular, the reducing of helical and axial velocity components of the molten steel, the lowering of the initial solidification point to avoid the touching of a shell edge with the slag ring, and a decrease of oscillation marks.
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Buriak Viktoriia V.
Kolesnichenko Anastasia
Kolesnichenko Anatoly
Greenberg Laurence A.
Lin Kuang
Locher Ralph E.
Stemer Werner H.
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