PREPARING METHOD OF BULK METALLIC GLASS TUBE BY VACUUM CENTRIFUGAL CASTING

PURPOSE: A preparing method for a bulk metallic glass tube by a vacuum centrifugal casting is provided to manufacture a bulk metallic glass tube with an excellent surface roughness by reducing a parasitic phenomenon of a molten metal through control of a crucible driving and a graphite mold. CONSTIT...

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Bibliographic Details
Main Authors BAE, JUNG CHAN, KIM, HA RIM, LEE, JU HO, KIM, HWI JUN
Format Patent
LanguageEnglish
Korean
Published 13.05.2013
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: A preparing method for a bulk metallic glass tube by a vacuum centrifugal casting is provided to manufacture a bulk metallic glass tube with an excellent surface roughness by reducing a parasitic phenomenon of a molten metal through control of a crucible driving and a graphite mold. CONSTITUTION: A preparing method for a bulk metallic glass tube by a vacuum centrifugal casting comprises the following steps: A mold is heated at 170 deg. C to 230 deg. C under a vacuum atmosphere and the mold rotates at a predetermined RPM(Revolution Per Minute) in order to apply a centrifugal force at 70G to 100G; The tube is centrifugal casted within the mold by injecting a molten metal of dissolved bulk metallic glasses as a basic material into the mold; A heater heats up the mold in a state of connecting the heater which is embedded within the mold to a power supply unit; The heater which is embedded within the mold is separated from the power supply unit before the mold rotates.
Bibliography:Application Number: KR20110113943