Processing of Cerium Tungsten Electrodes

Cerium Tungsten Electrodes Picture
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Cerium tungsten electrodes can be processed by the method of powder metallurgy.

The cerium tungsten electrodes processing is similar to yttrium tungsten electrodes. First of all, mix cerium nitrate aqueous solution with tungsten oxide to make tungsten cerium coated powder. Then reduce it to tungsten cerium powder. Finally, press and sinter powder into electrodes.

Cerium tungsten electrodes are first used to replace thoriated tungsten electrodes in 1950s. The processing method is developed from adding cerium oxide into tungsten powder in 1956. In 1965, method of permeating is introduced that is to put unsintered tungsten rod into rare earth metallic salt to reach the goal of mixing. Later on, in 1967, the method of sinter tungsten cerium powder into electrodes was invented, and become the most popular processing method of cerium tungsten electrodes.

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Cerium Tungsten Electrodes Picture

Cerium Tungsten Electrodes

Cerium tungsten electrodes have good starting arc performance under the condition of low current.
Zirconiated Tungsten Electrode Picture

Zirconiated Tungsten Electrode

Zirconiated tungsten electrode is also called the tungsten zirconiated electrode.Zirconiated tungsten electrode is tungsten electrodes manufactured with zirconiated oxide.
Composite Tungsten Electrodes Picture

Composite Tungsten Electrodes

Composite tungsten electrodes are electrodes adding two or two more rare earth oxides into tungsten,which are complementary to better their welding performance.
Thoriated Tungsten Electrodes Picture

Thoriated Tungsten Electrodes

Thoriated tungsten electrodes are electrodes made of tungsten and thoria by different proportion and the most widely used ones are 2% thoriated tungsten electrodes.