Tungsten Electrode - thorium tungsten electrodes, pure tungsten electrodes, lanthanum tungsten electrodes, cerium tungsten electrodes, composite tungsten electrodes


		ESTBLISHED1997 ISO9001:2008 CERTIFICATED


\| Home Page \| About Us \| Contact Us \| Visit Us \| 简体中文 \| 繁体中文 \| 日本語 \| English \| Deutsch \| Français \| Português \| Español \| Italiano \| Visit Our Site in Your Language >>

Tungsten Products

>Tungsten
>Wolfram
>Pure Tungsten
>Tungsten Bar
>Tungsten Rod
>Tungsten Wire
   Black Tungsten Wire
   Cleaned Tungsten Wire
   Tungsten Rhenium Wire
   Gold Plated Tungsten Rhenium
   Non-sag Tungsten Wire
   Stranded Tungsten Wire
   Gold Plated Tungsten Wire
   Doped Tungsten Wire
   Straightened Tungsten Wire
   Tungsten Filament
   EB Tungsten Filament
   IG Tungsten Filament
>Tungsten Electrode
   Pure Tungsten Electrode
   Thoriated Tungsten Electrode
   Lanthanated Tungsten Electrode
   Cerium Tungsten Electrode
   Zirconiated Tungsten Electrode
   Yttrium Tungsten Electrode
   Silver Tungsten Electrode
   Composite Tungsten Electrode
>Tungsten Heater
   Tungsten Heater Model 01~03
   Tungsten Heater Model 04~06
   Tungsten Heater Model 07~09
   Tungsten Heater Model 10~12
   Tungsten Heater Model 13~15
   Tungsten Heater Model 16~18
   Tungsten Heater Model 19~21
   Tungsten Heater Model 22~24
   Tungsten Heater Model 25~27
   Tungsten Heater Model 28
>Tungsten Crucible
>Tungsten Boat
>Tungsten Point/Contact
>Tungsten Plate
>Tungsten Sheet
>Tungsten Target
>Tungsten Granule
   Tungsten Ball
>Tungsten Needle
   Tungsten Pin
>Tungsten Stream Mouth
>Tungsten Nozzle
>E-Catalog of Pure Tungsten
>MSDS
>Tungsten Copper
   Tungsten Copper Heat Sink
   Tungsten Copper Electrode
   Tungsten Copper Dart
   Tungsten Copper Golf Weight
   Tungsten Copper LED
>Tungsten Carbide
>Tungsten Heavy Alloy

Other Products Pages »

About Tungsten (Wolfram)
All Tungsten Product
Ferro Tungsten
Powder Metallurgy
Rare Earth (RE) Product
Sintered Bronze Porous
SiC, B4C & CBN
Machine Tool Accessories

Services Contacts »

Designing Services
Drawings Services
Agent Services
Information Bank
Videos of Machining
Tungsten Dictionary
Tungsten World Report
Privacy Policy
Environments Policy
Terms & Condition
Feedback
Links Exchange & List

You're viewing: Home >>

Tungsten Electrode

What is Electrode?

An electrode is an electrical conductor used to make contact with a nonmetallic part of a circuit (e.g. a semiconductor, an electrolyte or a vacuum). The word was coined by the scientist Michael Faraday from the Greek words elektron (meaning amber, from which the word electricity is derived) and hodos, a way.

Cerium tungsten electrode Thoriated tungsten electrode Pure tungsten electrode Lanthanated tungsten electrode Zirconiated tungsten electrode

Tungsten Electrodes for TIG welding:

Tungsten electrodes are used when arc welding with the Tungsten Inert gas (TIG) process or when plasma welding. In both processes the electrode, arc and weld pool are protected from atmospheric contamination by an inert gas. A tungsten electrode is used because it can withstand very high temperatures with minimal melting or erosion. Tungsten electrodes are made by powder metallurgy and are formed to size after sintering.

TIG welding tungsten electrodes usually contain small quantities of other metallic oxides which can offer the following benefits:-

facilitate arc starting
increase arc stability
improve current-carrying capacity of the rod.
reduce the risk of weld contamination
increase electrode life

Oxides used are primarily those of zirconium, thorium, lanthanum, yttrium or cerium. Additions are usually of order 1%-4%. All these oxides greatly improve arc initiation, especially when direct current (DC) welding is employed. Thorium oxide (thoria) has been used for many years having been found effective in terms of long life and thermal efficiency. Zirconium oxide (zirconia) has been commonly used for alternating current (AC) TIG welding, normally for welding aluminium.

Type	Brand	Color	Chemical Composition（％）			Sizes (mm)	Surface	Features
Type	Brand	Color	Rare Earth	Impurities	W	Sizes (mm)	Surface	Features
Pure Tungsten	WP	Green	－	≤0.05	the rest	0.8~15	D,E G,S	Non-radioactive;suitable for AC welding of aluminum, magnesium, and their alloy
Thoriated Tungsten	WTh10	Yellow	0.9~1.1ThO2	≤0.05	the rest	0.8~15	D,E G,S	Excellent electron emission and overall performances; high current-carrying capacity; radioactivity; suitable for DC welding of carbon steel, stainless steel,nickel alloy and titanium alloy.
Thoriated Tungsten	WTh20	Red	1.8~2.2ThO2	≤0.05	the rest	0.8~15	D,E G,S
Lanthanum Tungsten	WLa10	Black	0.8~1.2La2O3	≤0.05	the rest	0.8~15	D,E G,S	Non-radioactive;excellent electric conductivity and welding capacity; high current-carrying capacity; minimum ratio of burnt area; substitute for thoriated tungsten electrode; mainly used in DC welding.
	WLa15	Golden Yellow	1.3~1.7 La2O3	≤0.05	the rest	0.8~15
	WLa20	Blue	1.8~2.2 La2O3	≤0.05	the rest	0.8~15
Cerium Tungsten	WCe10	Pink	0.8~1.2CeO2	≤0.05	the rest	0.8~15	D,E G,S	Non-radioactive;easier arc initiation under low current circumstances, and low arc-maintaining current;suitable for the welding of pipelines,small components and discontinuous welding.
	WCe15	Orange	1.3~1.7CeO2	≤0.05	the rest	0.8~15
	WCe20	Grey	1.8~2.2CeO2	≤0.05	the rest	0.8~15
Yttrium Tungsten	WY20	Sky Blue	1.8~2.2Y2O3	≤0.05	the rest	0.8~15	D,E G,S	Non-radioactive;long and slim arc beam with high compression; deeper burning groove under medium and high current circumstances.
Compound Rare Earth Tungsten	WMX	Cyan	1.0~5.0MOx	≤0.05	the rest	0.8~15	D,E G,S	Compound rare-earth tungsten electrode; different additives contributing to better performance of tungsten electrode

Note:D—As Drawn E—Electrolytic Polished G—Ground S—Swaged

More info>>

1. Catalog of Tungsten Electrode | 2. Applications of Tungsten Electrode | 3. TIG Welding | 4.GTAW

5. Tip Colors of Tungsten electrode | 6. Tungsten Rod | 7. MSDS of Tungsten Electrode

8. Quotation Table of Tungsten Electrode


Media Center>	[Information Bank] [Dictionary of tungsten] [Products Pictures' Bank] [Live Video of Processing] [Videos of Machining] [Catalogs]
Ours Teams>	[Journey to Dongshan] [2004 Xmas] [2005 Xmas] [2006 Spring Festival] [2007 Spring Festival] [Outside] [2008 Spring Festival ] [2009 Xmas]
Chinatungsten Group>	[Tungsten Carbide Supplier] [CTIA] [CTIA-EN] [CTIA-日本語] [Molybdenum Product] [Tungsten Darts] [Tungsten Wire] [Infosys] [Tungsten Bars/Rods] [Paper Weight] [Tungsten Carbide Powder] [Tungsten Copper] [Chatroulette] [Darts Wholesale] [Tungsten Wikipedia]
	[Tungsten Alloy] [Tungsten Carbide] [XATCM ] [Infosys] [DartChina Club] [Tungsten Heater] [Tungsten Powder] [Tungsten Fishing]
	[Bucking Bar] [Tungsten Heavy Alloys] [Tungsten Carbide Jewelry] [Metals Price][Xiamen Tungsten]

Address: 3F, No.25 WH Rd., the 2nd Xiamen Software Park, FJ 361008,China
Phone:+86-592-5129696,+86-592-5129595;Fax:+86-592-5129797;Email:sales@chinatungsten.com

　Certified by MIIT:闽B2-20090025　闽ICP备05002525号

Copyright©2000 - 2009 ChinaTungsten Online All Rights Reserved