一、引言真空电弧熔炼广泛应用于工业规模以海绵钛为原料生产优质铸锭的工艺中。该工艺尽管得到了发展,但仍有明显的缺点:1)自耗电极必须用海绵钛压块制成;2)为取得优质铸锭必须进行两次熔炼;3)从强度角度说,在压块中回收残钛量有限;4)用工业法熔炼的园锭生产板材或带材时,首先要进行锻造开坯。 I. INTRODUCTION Vacuum arc melting is widely used in industrial scale production of high quality ingot from titanium sponge. The process, despite its development, still has the obvious drawbacks of 1) the consumable electrodes must be made of sponge titanium compacts, 2) two smelters have to be made to obtain a good quality ingot, 3) from a strength point of view, Titanium residue recovery of residual titanium is limited; 4) industrial method smelting garden ingot production plate or strip, we must first forging billet.