Pure Tungsten And Pure Tungsten Electrodes

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 .


Tungsten Alloy Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-alloy.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
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Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn



 

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