Slag Compositions for Titanium Electroslag Melting and Effects of Selected Melting Parameters.
2D Int'l Symp on Electroslag Remelting Tech Mellon Inst Pittsburgh, Pennsylvania, 9/23-25/69 Proc Pt 1 :
Electroslag melting of reactive metals such as titanium requires considerable modification of concepts and techniques from those commonly used in steel melting. These differences begin with the required equipment. Since titanium reacts readily at high temperatures with gaseous impurities such as oxygen, nitrogen, and hydrogen, a protective atmosphere is essential. For this purpose a modified cold-mold vacuum arc melting furnace with a 4-inch ( 10 cm) round crucible was used for melting titanium. In later melts this feature was eliminated and dry slag was charged into the furnace before initiation of melting. All of the heats reported herein are single melts of titanium sponge pressed at 30,000 psi ( 2x106 kg/m2) into bars each 2x2x10 inches ( 5x5x25 cm) which were subsequently butt-welded to form the consumable electrode.
2D Int'l Symp. on Electroslag Remelting Tech., Mellon Inst., Pgh., Pennsylvania, 9/23-25/69, Proc., Pt.1