METHOD FOR CASTING METAL IN VACUUM AND APPARATUS FOR PERFORMING THE SAME

FIELD: production of Ni, Fe or Al base alloys, manufacture of castings of such alloys by precise casting in vacuum, melting charge billets. ^ SUBSTANCE: method comprises steps of creating in melting furnace electromagnetic field for melting and agitating metal in crucible in evacuated condition; pro...

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Bibliographische Detailangaben
Hauptverfasser:	ZENKOV B.B, ELISEEV JU.S, POKLAD V.A, KHAJCHENKO V.E, GRIGOR'JAN EH.B, VINOGRADOV V.A, NIKISHIN V.A
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING
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Beschreibung
Zusammenfassung:	FIELD: production of Ni, Fe or Al base alloys, manufacture of castings of such alloys by precise casting in vacuum, melting charge billets. ^ SUBSTANCE: method comprises steps of creating in melting furnace electromagnetic field for melting and agitating metal in crucible in evacuated condition; providing in part of crucible by means of dividing partition space non-subjected to action of electromagnetic field. When metal is agitated, non-metallic inclusions move vertically and through openings of dividing partition they penetrate to space formed by partition and float up. Metal is further purified from non-metallic inclusions at pouring metal out of crucible through filtering members. ^ EFFECT: improved purity degree of metal in crucible and in castings. ^ 25 cl, 9 dwg