METHOD FOR MANUFACTURING Ti-Al-CONTAINING Ni-BASED HIGH ALLOY

PROBLEM TO BE SOLVED: To provide a method for manufacturing a Ti-Al-containing Ni-based high alloy while preventing the pickup of Mg and the contamination of Mg, when manufacturing the Ti-Al-containing Ni-based high alloy by using a vacuum induction furnace. SOLUTION: This manufacturing method inclu...

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Bibliographische Detailangaben
Hauptverfasser:	MATSUZAKI MASAFUMI, ASANO SATOSHI
Format:	Patent
Sprache:	eng
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:	PROBLEM TO BE SOLVED: To provide a method for manufacturing a Ti-Al-containing Ni-based high alloy while preventing the pickup of Mg and the contamination of Mg, when manufacturing the Ti-Al-containing Ni-based high alloy by using a vacuum induction furnace. SOLUTION: This manufacturing method includes: smelting a raw material in which each alloy component is blended, in the vacuum induction furnace; adding NiO to a flux mainly containing CaO; refining the raw material; then tapping the hot metal out from the vacuum induction furnace to a ladle, prior to a casting step; and subsequently refining the hot metal by using a flux formed of Al2O3-CaO-CaF2, in the ladle. A sample for a quantitative analysis of Mg is collected at 1,600°C or higher. COPYRIGHT: (C)2009,JPO&INPIT