1.The gas in the liquid metal can be discharged quickly to form low
air content in the fusant.
2.The oxidizing loss of alloying element will be cut down in large
amount and the oxidation slag inclusion in the fusant will be
cut off sharply.
3.The fusant doesn't need covering flux and flux addition, not
vulnerable to contamination.
4.Improve the performance of metal alloy with an increase of 80%
for impact ductility, 30% respectively for long-time strength and
extensibility, and 50% for reduction of cross section area.
