MANUFACTURE OF MARAGING STEEL

PURPOSE:To improve the yield and workability by carrying out electroslag remelting using a CaF2-Al2O3-TiO2 flux contg. C and Si restricted to prescribed amounts. CONSTITUTION:Molten metal melted in a primary melting furnace is charged into a VOD furnace. While agitating the molten metal by blowing A...

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Bibliographische Detailangaben
Hauptverfasser:	MAKINO TAKEHISA, ISHII TERUO, OKAMURA MASAYOSHI, NARITA KIICHI, SOUDOU TATSUHIKO, HIROSE KAZUO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY METALLURGY OF IRON PRETREATMENT OF RAW MATERIALS PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL PRODUCTION AND REFINING OF METALS TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	PURPOSE:To improve the yield and workability by carrying out electroslag remelting using a CaF2-Al2O3-TiO2 flux contg. C and Si restricted to prescribed amounts. CONSTITUTION:Molten metal melted in a primary melting furnace is charged into a VOD furnace. While agitating the molten metal by blowing Ar, O2 is blown to decarburize and desiliconize the molten metal, and the resulting steel material is used as an electrode. A CaF2-Al2O3-TiO2 or CaF2-CaO-Al2O3-TiO2 flux contg.