Through orthogonal experiment for ZL101A

four factors influencing the process of rotary impeller degassing

such as rotation speed

flux of argon

refining temperature and degassing time were examined

and the influencing sequence on rotary impeller degassing efficiency was presented as follows: rotation speed

flux of argon

refining temperature and degassing time. The optimized processing parameters were presented as follows: rotational speed of 300 r·min-1

the flux about 3.5 L·min-1

and degassing time of 15 minutes at 700 ℃.