METHOD FOR CONTINUOUS CASTING OF METAL

PURPOSE:To prevent contact of a ceramic material with oxide in a cast billet and to extend the service life of the ceramic in continuous casting for metal by sealing gap part developed between the cast billet, which is solidified and shrunk in a mold lining the ceramic, and the mold by using non-oxi...

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Bibliographic Details
Main Author KOYAMA KUNIO
Format Patent
LanguageEnglish
Published 30.01.1989
Subjects
CASTING
CASTING OF METALS
CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
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Summary:PURPOSE:To prevent contact of a ceramic material with oxide in a cast billet and to extend the service life of the ceramic in continuous casting for metal by sealing gap part developed between the cast billet, which is solidified and shrunk in a mold lining the ceramic, and the mold by using non-oxidizing gas. CONSTITUTION:The molten metal is poured into the copper mold 11 lined by the ceramic 2 and the mold 1 is water-cooled from the outer surface to cool the ceramic 2 contacting with the mold 1. The gap developed between the ceramic 2 and the coagulated and solidified cast billet, is sealed with non- oxidizing gas of N2, Ar, etc., to prevent oxidation of the cast billet. As method of sealing, the non-oxidizing gas can be blow in the gap from gas blowing holes 10 fitted near the outlet side of the mold as showing in the figure. As a result, extension of the service life for the ceramic, improvements of casting efficiency and casting yield, etc., can be obtd.
Bibliography:Application Number: JP19870183435