Cu-Be alloy (C17200) rod having diameter of 23.5mm was produced by a vacuum continuous casting method at furnace temperature range of from 1240 degrees C to 1260 degrees C with casting speed range of from 35mm/min to 103mm/min. When the furnace temperature was 1240 degrees C and 1250 degrees C, Cu-Be alloy rod without fracture could successfully produced at high casting speed of 103mm/min.
... [Show full abstract] However, when the furnace temperature was 1260 degrees C, the breakout occurred at casting speed faster than 78mm/min. Surface roughness (Ra) increased with increasing not only a furnace temperature but also a casting speed.