Material Introduction
Tungsten Rare Earth Electrodes
Material Introduction
Tungsten rare earth alloys refer to alloys composed of tungsten and rare earth oxides. Generally speaking, the amount of rare earth oxide added is 0.3% to 4.0% (WT). These exist in tungsten rare earth alloys as dispersed particles and play a role in strengthening the material, particularly at high temperatures, as well as improving the recrystallization temperature and high-temperature creep performance. Tungsten rare earth alloys also have excellent electron emission performance, arc ablation resistance, good arc stability and controllability. Tungsten rare-earth alloys are mainly used as electrodes for arc welding, cutting, and initiation. They can be used under different conditions based on the specific electrode characteristics.
Specifications and Performance
We have an annual output of 600 tons of thoriated tungsten, cerium tungsten, lanthanum tungsten, zirconium tungsten, yttrium tungsten and other rare earth tungsten electrodes, and provide users with high-quality tungsten electrodes of all varieties, brands and specifications.
Product standards: ISO 6848 ANSI/AWS A5.12/A5.A2M-98 Specifications: Diameter: 0.5-30mm
Specifications: Diameter: 0.5~30 mm
Length: 150 mm, 175 mm, 178 mm, or any specific length required by customers.
|
Name |
Grade |
Current |
Welding process |
Characteristics |
Applications |
|
Composite tungsten electrode |
WR20 |
Large AC/DC current |
Automatic welding, robot welding, cold welding, aluminum welding, etc. |
Easy to start arc, good arc start-up performance and stability, a good replacement for thoriated tungsten |
Non-alloy and low-alloy steel, stainless steel, aluminum alloy, magnesium alloy, titanium alloy, nickel alloy, copper alloy, thermal spraying, cathodes and anodes for special light sources. |
|
Lanthanum tungsten electrode |
WL10 |
Small/Large DC current |
Automatic and manual welding |
Easy to start arc, good arc start-up performance and stability, a good replacement for thoriated tungsten |
Non-alloy and low-alloy steel, stainless steel, titanium alloy, nickel alloy, copper alloy, thermal spraying, cathodes and anodes for special light sources. |
|
Cerium tungsten electrode |
WC20 |
Small DC current |
Automatic and manual welding |
Easy arc start-up and stability, low electron work function, able to replace thoriated tungsten at low currents |
Non-alloy and low-alloy steel, stainless steel, aluminum alloy, magnesium alloy, titanium alloy, nickel alloy, copper alloy, thermal spraying, cathodes and anodes for special light sources. |
|
Thoriated tungsten electrode |
WT10 |
Large DC current |
Automatic and manual welding |
Easy arc start-up and stability, good high temperature performance, high current and long service life, but with a certain amount of radioactivity |
Non-alloy and low-alloy steel, stainless steel, aluminum alloy, magnesium alloy, titanium alloy, nickel alloy, copper alloy, thermal spraying, cathodes and anodes for special light sources. |
|
Yttrium tungsten electrode |
WY20 |
Large DC current |
Automatic and robot welding |
Strong penetration, narrow arc beam, high degree of compression; mainly used in the military and aerospace industries. |
Non-alloy and low-alloy steel, stainless steel, aluminum alloy, magnesium alloy, titanium alloy, nickel alloy, copper alloy, thermal spraying, cathodes and anodes for special light sources. |
Fabrication Process
Tungsten rare earth alloys are prepared by means of the powder metallurgy method, and the entire process from powder preparation to final product is fully controllable, ensuring that the properties of the tungsten rare earth alloys meet all customer requirements.
Advantage
The doping of rare earth oxides in tungsten can increase the recrystallization temperature of the alloys and reduce the electron work function. Tungsten rare earth alloys show good thermal electron emission performance, anti-burning performance, and processing plasticity. Rare earth elements or their oxides can also refine grains, increase yield strength and tensile strength, and enhance high-temperature creep performance by filling up dislocation gaps or interface defects.
Address:Area C, AT&M, No. 10 North Yongcheng Road, Yongfeng Industrial Base, Haidian District, Beijing, China / No. 10 Baozhong Road, Baodi Economic and Development Zone, Tianjin, China
Tel: +86 (0)10 5871-7301 / +86 (0)22 5921-3388
International Trade: +86 18892203868 / anne@attl.cn
Scan and Subscribe to Learn More
ATTL Advanced Materials Co.,Ltd.