In fact ,rutile sand is titanium dioxide ,generally contain more than 95% titanium dioxide .it is the major raw mineral materials to refining Ti ,but there be less reserves in the earth . It has high temperature resistant, good low temperature resistance, corrosion resistance, high strength, good properties on small proportion, is widely used in military aviation, aerospace, navigation, machinery, chemical, sea water desalination, etc .Rutile sand itself is the necessary raw material of high-grade electrode.the main function is slagging ,Arc stability and Control slag ,Improve weld forming.

The main chemical composition index (%):
TiO2  FeO SiO2 S P ZnO
87~96 ≤0.5 ≤0.75 ≤0.03 ≤0.05 ≤1.0

The faction in the material of welding:
Advantage:
Oxidizing is weak
Hot slag detachability is good
Arc stability, molten pool is tranquil
Make metal to fine mist transition
Directional welding is good
make the welding line more beautiful ,and good slag cover
Disadvantage:
The influence of the welding process performance:
Rutile granularity has influence to splash,Coarse powder of splash rate lower than fine pow