METHOD OF PREPARATION OF MAGNESIUM AND ITS ALLOYS IN OPEN FURNACES

non-ferrous metallurgy; methods of preparation of magnesium and its alloys in open furnaces. SUBSTANCE: proposed method includes melting of charge in shielding medium atmosphere, refining and modifying the melt by purging it with Freon-13 or Freon-14 gas. Refining and modifying are performed through...

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Bibliographische Detailangaben
Hauptverfasser:	JAKIMOV A.V, KALININ A.T, JAKIMOV V.I
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	ALLOYS CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	non-ferrous metallurgy; methods of preparation of magnesium and its alloys in open furnaces. SUBSTANCE: proposed method includes melting of charge in shielding medium atmosphere, refining and modifying the melt by purging it with Freon-13 or Freon-14 gas. Refining and modifying are performed through filtration chamber - porous base of open reservoir immersed in melt ready for casting. Repeated modifying of melt is performed by purging with Freon-13 or Freon-14 gas at delivery of shielding gas to surface of melt. Porous base of filtration chamber consists of layers of magnesite and synthetic corundum scrap at ratio of 1:1. Rate of filtration ranges from 7.0 to 8.0 cm/s. Finished melt is held for 15 minutes and is cast in molds. EFFECT: possibility of preparation of alloys at high degree of cleaning from nonmetallic inclusions at considerable reduction of consumption of shielding gas (from 800 1 per melting cycle to 400-500 1). 2 cl