10pcs Green Code 1.0/1.6/2.0/2.4/3.0/ 3.2/ 150MM Tungsten Electrode Tungsten Needle Rod For Welding Machine With TIG Function

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Description

 

 

 

 

 

 

Pure Tungsten is the longest history of use of a non-melting electrode. it contains tungsten content minimum99.5%, without others impurities . pure tungsten electrode is only as welding  electrode under the condition of AC or resistance welding  electrode , it can clean surface  of base matel . welded ball bacame tapering when heating . this shape provides a good and balanced wave form for AC welding . pure  tungsten  electrode has a very high electrode output ,low vapor pressure ,low resistance , good conductivity, thermal expansion , high elastic modulus bright . Therefore, the arc is stable at low current ,and Aluminum, Magesium and other metals  can be  welded at the  current  below  5A . But the emission  of electron demands high voltage and high  no-load  voltage of welding  machine , The  tungsten electrode is burned apparently if it works in the high current  for a long time . the end may drop  into molten pool after melting,wich will bring the tungsten  into the welding gap so ,it's just used for welding  some  black  metal or welding the 

 

The picture of te tungsten needle: