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METHOD OF MELTING ALLOYING ELEMENTS FOR TITANIUM ALLOYS
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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The melting of Ti-base alloys is performed in vacuum arc furnaces in a water-cooled copper container. The remelting of the consumable press-formed electrode is the most popular method in the USSR and abroad. With this method of melting, an electric arc is struck between the consumable electrode and the stool. The lower face of the electrode is gradually fused, and the metal dripping onto the stool forms a molten bath. As the molten metal transfers from the electrode to the bath, its lower portion gradually crystallizes. The process of crystallization, therefore, always runs parallel to the process of melting. The depth of the liquid bath fluctuates in accordance with arc currents and container diameter, and varies between the limits of 50 and 300 mm. Author
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