METHOD OF PRODUCTION OF INGOTS ON BASE OF REFRACTORY METALS BY VACUUM AUTOCRUCIBLE ARC MELTING

FIELD: special-purpose electrical metallurgy; production of high-quality ingots from high-temperature alloys on base on titanium alloyed by low-melting elements, for example aluminum, tin and silicon. ^ SUBSTANCE: burden of low-melting alloying elements is charged into water-cooled copper crucible w...

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Hauptverfasser:	KULESHOV SERGEJ JUR'EVICH, DROBYSHEV VALERIJ ANDREEVICH, KROPOTKIN VLADIMIR VLADIMIROVICH, FADEEV MIKHAIL IVANOVICH, ZURABOV VLADIMIR SERGEEVICH, SHALASHOV ALEKSEJ IVANOVICH, GRABKO ALEKSANDR IVANOVICH, VESELKOV MIKHAIL MIKHAJLOVICH, SHIKOV ALEKSANDR KONSTANTINOVICH, SHTUTSA MIKHAIL GEORGIEVICH, IL'ENKO EVGENIJ VLADIMIROVICH, IZOTOV ANATOLIJ VASIL'EVICH
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Zusammenfassung:	FIELD: special-purpose electrical metallurgy; production of high-quality ingots from high-temperature alloys on base on titanium alloyed by low-melting elements, for example aluminum, tin and silicon. ^ SUBSTANCE: burden of low-melting alloying elements is charged into water-cooled copper crucible with skull made from the same alloy in its bottom part; consumable electrode made from parent metal or from alloy is molten into crucible and is poured into ingot mold. Low-melting alloying element charge is loaded on larger base of riser of casting of previous melt made in form of truncated cone whose lesser base is mounted on skull of crucible bottom part; diameter of larger base of riser is preset depending on limits of ratio 0.8