Tungsten electrode, made of tungsten, has high melting point, corrosion resistance, high density, good heat conducting and conductive material, which is widely used in welding.

As for non-consumable gas tungsten shielding arc welding, tungsten electrode is tungsten alloy strip made of rare earth elements (such as: cerium, thorium, lanthanum, yttrium and zirconium, etc) doped with 0.3%-5% by powder metallurgy in the tungsten matrix, and then processed by pressure.The most commonly used tungsten electrode specifications are diameter 1.0mm, 1.6mm, 2.4mm and 3.2mm.

 

Because of the characteristics of tungsten, it is suitable for non-consumable gas tungsten shielding arc welding and other electrode materials similar to this kind of work. Adding rare earth oxide to tungsten to stimulate its electronic escape work can improve the welding performance of tungsten electrode. The arc of electrode is better; the stability of arc column is higher, and the burning rate of electrode is smaller.

 

 

Tungsten electrode applications are mainly welding, electric light source and plasma generator.

 

In aviation and rocket technology, as well as other parts requiring high strength in engine parts, engines, and some instruments, tungsten and other alloys used in molten metals (tantalum, niobium, molybdenum, rhenium) are used as thermal strength materials. Tungsten copper and tungsten silver alloys made by powder metallurgy methods for contact materials and high gravity alloys have good electrical conductivity, thermal conductivity and tungsten wear resistance. Therefore, it has become a part of contact material of manufacturing knife switch, circuit breaker, etc. 90% to 95% tungsten, 1% to 6% nickel, 1% to 4% copper heavy alloy, and iron alloy are used in the manufacture of gyroscope rotor, aircraft, control rudder of the balance hammer, radioactive isotopes of the radio shield and baskets, etc.

 

With the development of tungsten electrode inert gas shielding arc welding, research on the tungsten electrode is also becoming more and more advanced. According to the characteristics of tungsten, different tungsten electrode materials for argon arc welding have been developed to form tungsten electrode products. Tungsten electrode industry has a greater industrial prospect and a wider market potential.