Metal founding – Process – Shaping liquid metal against a forming surface
Reexamination Certificate
2006-11-22
2008-11-18
Lin, Kuang (Department: 1793)
Metal founding
Process
Shaping liquid metal against a forming surface
C164S479000, C164S122100, C075S528000, C075S560000
Reexamination Certificate
active
07451804
ABSTRACT:
A method and apparatus for preparing and delivering various types of carbon and microalloy steel, free of oxygen with abundance of nuclei, when cast producing ultra fine grain steel free of internal defeats with excellent quality. A horizontal sealed table caster has a chamber, containing a suitable atmosphere for casting, with a tube connecting to a tundish so as to allow a liquid to flow into the chamber. The liquid metal is captured on a cooling belt along the bottom of the chamber and is maintained as a specific width and depth. The cooling belt serves as a heat sink causing the liquid metal to solidify from the bottom up, allowing inclusions to migrate to the surface of the steel. A layer of liquid metal is maintained on top of the solidifying steel until the solidification reaches the surface. The belt moves the solid metal toward the exit of the chamber. As the liquid metal solidifies, the impurities migrate in the liquid metal, reaching the surface and a solid metal body free of inclusions with the superior properties is produced.
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Haight Law Office
Lin Kuang
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