The hemispherical tip of the electrode and easy to maintain, for AC welding.

Cerium tungsten rod tungsten needle commonly used tungsten tungsten chemical composition and grade
W1 W ≥ 99.92 SiO2 ≤ 0.03 Fe2O3Al2 ≤ 0.03 Mo ≤ 0.01 CaO
WTH-7 W margin other impurities is not more than the total mass fraction of 0.15%
WCe-20 W margin CeO1.8-2.2 SiO2 ≤ 0.06 Fe2O3AI2O3 ≤ 0.02 Mo ≤ 0.01 CaO ≤ 0.01
Low electron work function, high chemical stability, allowing current density, no Is now widely used in an electrode.
High melting and boiling points, easy to melt volatile, burning, cutting-edge, less pollution, but the electron emission is poor, is not conducive to the stability of arc burning.
Electron emission capability, allowing high current density arc burning more stable, but with a certain element thorium???, Promote the application be affected.
On the need to prevent contamination of the base metal electrode under special conditions, you can use this tungsten. The hemispherical tip of the electrode and easy to maintain, for AC welding.from product design, development and production to sales and service in all aspects of strict quality assurance requirements.
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