Zirconia doped tungsten, zirconium tungsten electrodes produce. Specific data as follows:

Other grades dopant doping doping electron work function color coating head

WZ3 ZrO2 0.20 ~ 0.40% <0.20% 2.5 ~ 3.0 Brown
WZ8 ZrO2 0.70 ~ 0.90% <0.20% 2.5 ~ 3.0 White

Zirconium tungsten electrodes and pure tungsten electrodes, can only be of the AC welding work environment.

Zirconium tungsten electrodes in AC environment, good weldability. Especially in the case of high load currents, zirconium tungsten electrodes shown superior performance of the other electrode can not be replaced.

In welding, the end portion of the tungsten electrode of zirconium to maintain a reduced spherical tungsten infiltration phenomenon, and has good corrosion resistance.

Since the emergence of other alternative products, zirconium tungsten electrode demand will have a decreasing trend. Main alternative product is lanthanum tungsten electrode.


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Now there are many types of tungsten electrodes , the new generation and application of bulldozing will gradually phase out old products. Tungsten also has been the development of innovation . Especially in relatively hot composite rare earth tungsten electrodes . But I have used a total of tungsten electrodes also has good quality , with so not being taken seriously , but in the history of the tungsten electrode Send a connecting link between the river played a role .

Introduced in front of lanthanum tungsten electrodes , thoriated tungsten electrodes , said today that the zirconium tungsten electrode . Zirconium tungsten electrodes in order to improve the motor innocent large tungsten at high load conditions, contamination of the workpiece is easy to melt their drawbacks of an electrode for the development of varieties , the biggest feature is the high load currents , the end of this motor a spherical portion can be maintained to reduce the phenomenon of infiltration of tungsten , with good corrosion resistance.

Zirconium tungsten electrodes are based on the zirconia containing a small amount . Once thoriated tungsten electrode and the common electrode zirconium tungsten electrodes are , generally speaking in nature , zirconium tungsten electrodes is the best non-radioactive tungsten electrodes . Zirconium tungsten electrodes in the case of the use of alternating current with good performance.

Lanthanum tungsten electrode application and now composite rare earth tungsten electrodes gradually occupied the tungsten electrodes market. The use of zirconium tungsten electrode less .


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Zirconium Tungsten Electrode Characteristics

In welding, the end portion of the tungsten electrode of zirconium to maintain a reduced spherical tungsten infiltration phenomenon , and has good corrosion resistance . Since the emergence of other alternative products , zirconium tungsten electrode demand will have a decreasing trend . Main alternative product is lanthanum tungsten electrode .

The Use of Zirconium Tungsten Electrode

Zirconium tungsten electrodes , but also for radiation quality welding . Requires minimal best application tungsten contamination . Zirconium tungsten electrodes are generally applied alternating current, not recommended for direct current. Tungsten electrodes made ​​of zirconium and its alloys for Mg AC welding . zirconium tungsten electrode welding special to pure tungsten electrodes located and thorium tungsten electrode, is to improve the pure tungsten electrode welding conditions at high load melt easily under their own further pollution and the development of the drawbacks of the workpiece tungsten electrodes product. 10 pcs / plastic box , the length is 150mm or 175mm, 1000只per carton .


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Zirconium tungsten electrode is the main component

Zirconium tungsten electrodes with a small amount of zirconia . Zirconium tungsten electrode welding characteristics , in general, in pure tungsten electrodes and thoriated tungsten electrodes. In AC welding , zirconium tungsten electrode is the most common , because welding easier than pure tungsten arc , and the arc beam stability, but also can be a good prevention of pollution , carrying capacity is also good, from a performance point of view, overall zirconium tungsten electrode is the best non-radioactive tungsten electrodes .

The main ingredient is the element content in the total composition 98 to 98.8 % tungsten , 0.91 to 1.2% zirconium , 0.01 to 0.07% of yttria of 0.01 to 0.02% of cobalt .

Zirconium tungsten electrode characteristics

Zirconium tungsten electrodes and pure tungsten electrodes , can only be of the AC welding work environment . Zirconium tungsten electrode in AC environment, good weldability . Especially in the case of high load currents , zirconium tungsten electrodes shown superior performance of the other electrode can not be replaced .


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Cerium tungsten electrode material is a non -radioactive, non- consumable refractory metal electrode material , applied to the inert gas-shielded arc welding , plasma welding , cutting, coating and smelting , the laser light source and the gas discharge light source technologies such as the electrode , and a vacuum electron beam coating cathode filaments , etc. The present invention uses powder metallurgy process , strict control of process parameters, to prepare a cerium oxide content of 1.0 to 4.5 % cerium tungsten electrode material , thus overcoming long as people think cerium oxide containing more than 1.0 % cerium tungsten electrode material embrittlement problem occurs .

Cerium tungsten electrode material manufacturing methods and equipment belonging to the field of chemical and metallurgical techniques . The first aspect of the present invention is to use liquid - liquid mixing replace the existing liquid - solid mixing , the additive , tungsten ceria group in the most uniform dispersion , thus greatly improving the processing of the tungsten electrode material Ce properties and performance ; second aspect of the present invention is to replace the existing spray- drying and evaporation of the mixing disc drying , the tungsten powder particle size , particle size distribution and particle shape can be controlled , thereby ensuring the processing performance , easy , continuous and automatic and mass production . Cerium tungsten electrode material for the promotion and application of the foundation.


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Fake gold comes in several forms. The most common--and the hardest to detect--are when another heavy metal is plated with 24-carat gold. This makes it appear that the entire piece of metal is pure gold, when actually only a thin skin on the surface is truly the precious metal. Iron pyrite, or fool's gold, is a common stone that many people used to think was gold during the days of the Gold Rush. However, it is far too hard and light to actually be gold, and almost everyone knows the difference today. People have also been fooled by highly polished copper pyrite or bismutite, both of which have a bright, yellowish sheen in some lights.

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To tell if gold is real or fake, measure its density. The density of gold, 19.3 grams / cm3, is much higher than most other metals. Even lead has a density of only 11.4 g/cm3 -- platinum, iridium, osmium, and neptunium are the only metals that have a density over 20 g/cm3! (For comparison the density of water is only 1 g/cm3).

To measure the density of a metal, you need a scale or balance (to measure the mass) and a graduated cylinder (to measure the volume).

First weigh the piece of gold on the scale. Then, to determine the volume, add some water to the graduated cylinder. It doesn't matter how much, but write down exactly how much there is.

Then add the gold to the graduated cylinder. Again, write down the exact water level. Take the difference of the two numbers to get the volume of the gold alone. Remember 1 milliliter = 1 cm3.

Finally, find the density by dividing the mass by the volume (density = mass ÷ volume). If what you get is approximately 19 g/cm3, then it is real gold. It might be slightly less because almost all gold jewelry is not actually 100% gold (pure gold is too soft for jewelry). Note also that this method won't work if there parts of the jewelry that are not gold (like gems, etc.) because the density you measure will be affected by those other non-gold parts.

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Tungsten heavy alloy is ultimate the Bucking bar material - you will never use steel bars again! Because of the density, you can create the best shape for your space so it's just right for getting inside the ribs and spars gaps on wings, flight controls, etc. The weight and the density of the metal make for the best rivet bucking in the industry. With tungsten-based bars, just a few taps with a 3X rivet gun and a 1/4 rivet is complete. This saves possible damage to the aircraft skin and frames due to less repeat riveting and it also saves time allowing you to move on to the next rivet.

Tungsten-based bucking bars are also ergonomically better than steel. Studies show that tungsten-based bucking bars reduce the amount of vibration the user experiences and therefore reduces the chance for white finger or carpal tunnel syndrome.

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Example embodiments of bucking bar sleeves for use with handheld air damped bucking bar devices are described herein. Such sleeves are not limited to use with any one particular bucking bar device, nor are such sleeves limited to use with justair damped bucking bar devices. In addition, and rather than being constructed as a separate sleeve, it is contemplated that the sleeve can be integrated into the bucking bar device. Further, the bucking bar sleeves sometimes are described herein inthe context of an aircraft. Such bucking bar sleeves are not limited to use in any one particular riveting application, and can be used in many different applications.

The bucking bar sleeve described herein is adjustable and engages to a known air damped bucking bar device. The sleeve facilitates assuring a desired compression of a rivet buck tail during a riveting operation, avoiding formation of gapsbetween parts, and providing bar balance and vibration control for operators. More particularly, and as described below in more detail, in one embodiment the bucking bar sleeve includes an adjustable, encircling, non-marring reference surface thatlimits the degree of compression of the buck tail. The non-marring surface also controls an even compression across the end of the rivet. The relative position of the non-marring surface with respect to the bucking bar can be adjusted to allow adesired amount of compression of the buck tail. The sleeve therefore removes at least some dependency on the skill and experience of the operator, and facilitates avoiding variation and rework.

Pure tungsten is the production of pure tungsten products, materials . Pure tungsten is called its purity more than 99.95% pure . Products made of pure tungsten has the highest density of tungsten products, including tungsten and carbide products. Pure tungsten products are preferred by the customer , its high density , high temperature, high corrosion resistance, high wear resistance , high hardness , and low thermal expansion . Tungsten is a chemical element , chemical symbol W and atomic number 74. Pure tungsten products, including tungsten , tungsten wire, tungsten contacts , tungsten heater element , tungsten wire , tungsten crucible , and so on.

Pure tungsten electrode arc welding electrodes used first , but in DC welding conditions, the breed is prone to afford electrode arc or maintenance instability, adding rare earth oxides can greatly improve the situation , so pure only as a communication condition tungsten welding electrodes or as the resistance welding electrode . Pure tungsten electrodes least 99.5% of tungsten , no alloying elements. Tungsten has a very high electron work function , so compared to other alloys of tungsten electrodes , the arc difficult pure tungsten electrodes , the arc to maintain the stability of the beam is more difficult . Furthermore , because of its higher electron work function , the electrode tip temperature is higher and prone to grain growth , which would lead to instability of the arc beam , arcing difficult , and the service life is shorter . Pure tungsten is used only for AC welding , however , you can choose a good DC .


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