Tungsten has high melting point, strong electron emission ability, high elastic modulus and low vapor pressure, so tungsten electrode was used as thermal electron emission material early.

       The shape of tungsten electrode tip is an important factor for TIG.

       Characteristics of tungsten electrode:
Tungsten welding electrode has excellent welding performance, great arc starting capacity with good arc stability, low electrode burning loss, long service life, free of slag and splashing and high welding quality.

       Tungsten electrode plays an important role in tungsten argon arc welding of arc, arc stability and welding quality.

       Applications of tungsten electrode:

       Tungsten electrode is used for inert gas protection arc welding, plasmacutting, spray-coating and furnace melting.

       Surface conditions of tungsten electrode:
Grinding, cleaning, electrolysis polishing, drawing or forging.

       Type, compositions and colors:

Art	kompositionen				Farben
	zugesetztes Oxid%	Stoffe	Stoffe%	Wolfram%
W				99.8	grün
WT4-KARTON	0.35--0.55	THO2-KARTON		verbleibend	blau
WT10-KARTON	0.8--1.20	THO2-KARTON		verbleibend	gelb
WT20-KARTON	1.70--2.20	THO2-KARTON		verbleibend	rot
WT30-KARTON	2.80--3.20	THO2-KARTON		verbleibend	violett
WT40-KARTON	3.80--4.20	THO2-KARTON		verbleibend	Orange
WZ3-KARTON	0.15--0.50	ZrO2		verbleibend	braun
WZ8-KARTON	0.70--0.90	ZrO2		verbleibend	weiß
WL10-KARTON	0.90--1.20	LaO2		verbleibend	schwarz
WC20-KARTON	1.80--2.20	CeO2		verbleibend	grau

       2. Spezifikationen (mm)

Durchmesser	Länge
1.0	150              175
1.6
2.0
2.4
3.2       6.3
4.0       8.0
5.0     10.0