Products Description
Cerium tungsten electrode is a tungsten electrode product made by adding rare earth cerium oxide to the tungsten base through the processes of powder metallurgy and calendering, grinding and polishing. The product is characterized by excellent arc starting performance under low current conditions and small arc current. Therefore, it is often used in the welding of pipes, stainless steel products and small precision parts. Cerium tungsten electrode is the preferred substitute for thorium tungsten electrode under low current DC condition or electrode diameter below 2.0mm.
| Brand | Doping % | Other miscellaneous mass % | Electrons escape work |
| WC20 | 1.8-2.2 | ＜0.2 | 2.7-2.8 |
Color difference of tungsten needle head
| Gray (cerium tungsten WC20) | It can be applied to welding steel and so on |
| Red (thorium tungsten wt20) | tungsten electrode is suitable for welding stainless steel, nickel alloy and titanium |
| Green (pure tungsten WP) | tungsten electrode is suitable for welding aluminum and magnesium alloy workpieces |
| Golden yellow (lanthanum tungsten WL15) | tungsten electrode is suitable for stainless steel, nickel alloy, titanium metal, etc |
| Light blue (lanthanum tungsten wl20) | tungsten electrode is suitable for stainless steel, nickel alloy, titanium metal, etc |
Product specification：
| Electrode diameter | Packing | Electrode connected to positive pole(A) | Electrode connected to negative pole(A) | Alternating current(A) |
| 1.6 |
10 PCs in1 box |
60-150 | 10-20 | 60-125 |
| 2.0 | 100-200 | 15-25 | 85-160 | |
| 2.4 | 150-230 | 16-28 | 105-195 | |
| 3.0 | 200-310 | 18-32 | 130-220 | |
| 3.0 | 225-330 | 20-35 | 150-250 |
Product display
What is the difference between a thorium electrode and a cerium electrode?
1, color: the color of thorium tungsten electrode is red and the color of cerium tungsten electrode is gray.
2, radioactivity: cerium tungsten electrode and thorium tungsten electrode, the former does not contain radioactive substances.
3, durability: cerium tungsten electrode lasts longer than thorium tungsten electrode.
Related products
Summary of the characteristics of various tungsten electrodes
Pure tungsten electrode is suitable for welding under AC conditions, because the electrode does not add any rare earth oxides, so its electron escape ability is weakest, so it is only suitable for use under AC large parameters, such as aluminum, magnesium welding.
Cerium tungsten has the following advantages:
* Non-radioactive
* Low melting rate
* Long welding life
* Good arcing.
Cerium tungsten electrode can also be used in smaller current welding.
Cerium tungsten has excellent arcing properties at low current, so it has become the standard of most rail pipe welding equipment manufacturers, in addition, it is also used in other low current applications such as fine parts welding.
Cerium tungsten electrodes cannot be used under high current conditions, because the oxide will move to a hotter place, causing damage, and the benefits of a uniform distribution of the oxide (cerium oxide) are lost
Lanthanum tungsten has the following advantages:
* Mechanical cutting performance is better
* Better creep resistance
* High recrystallization temperature
* Good ductility.
Lanthanum tungsten electrode is also a popular electrode material now.
The electrical conductivity of 1.5% lanthanum tungsten electrode and 2.0% tungsten thorium electrode is very similar, so the electrode can be easily replaced without changing any data.
In 1998, there was a very famous field test, that is, 2.0% thorium tungsten electrode, 2.0% cerium tungsten electrode and 1.5% lanthanum tungsten electrode provided by two manufacturers were respectively in 70 A and 150 A current, 300 volts DC environment for welding tasks, the result is, in both cases, 1.5% lanthanum tungsten electrode has shown its excellent welding performance. At the same time, it also reflects the characteristics of small burn rate.
Lanthanum tungsten electrode is also suitable for AC welding tasks, and the performance is excellent.
Compared with pure tungsten material, tungsten-thorium has the following characteristics:
* Lower electronic function
* Higher crystallization temperature
* Better conductivity
* Good mechanical cutting performance.
Thorium tungsten electrode is a commonly used tungsten electrode material, which has superior welding properties than pure tungsten, so it is widely used in the field of direct current welding.
Thoriated tungsten electrodes are easy to operate and work well even under overload currents, and are still used by many companies as part of high-quality welding.
However, people are gradually turning their attention to other types of tungsten electrodes, such as cerium and lanthanum tungsten, not only because they show excellent performance in most applications, but also, importantly, because they do not have radiation damage. Because the thorium oxide in the thorium tungsten electrode produces a small amount of radiation, some welding personnel are reluctant to go near them.
When using thorium tungsten electrode welding, it is necessary to maintain a good ventilation environment, the abandoned welding head should be properly disposed of, And storage of thorium tungsten electrodes should be placed in a special lead box.
Production method and application of cerium tungsten electrode
In terms of production process, the production steps of cerium tungsten materials include: adding cerium salt solution to tungsten trioxide, drying and burning, and then putting it into a hydrogen tubular furnace for two-stage reduction, pressing the obtained tungsten cerium powder into green strips, pre sintering in a hydrogen molybdenum wire furnace, and then electrifying and high-temperature sintering under the protection of hydrogen to obtain metal tungsten cerium green strips. Finally, hot rotary forging is carried out, during which annealing is required, and then straightening and Cutting and cleaning.
In terms of application, cerium tungsten electrode can be used in both DC welding and AC welding, but it is easy to split in AC welding; It is used in inert gas arc welding, hydrogen atom welding, argon arc surfacing, pulse argon arc welding and plasma welding Connection, plasma cutting, plasma spraying, plasma melting, etc; Used for welding carbon steel, stainless steel, silicon copper, copper, bronze, titanium and other materials.
Contact information
Amanda
Company: Baoji Dynamic Trading Co., Ltd
Country:China
Add:Baoti road,Jintai,Baoji city,Shaanxi,China
Cel/Whatsapp :+86 18309262795
Email:annie@jmyunti.com
Website:www.jm-titanium.com
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