Tungsten Copper Electrode Erosion Mechanism

Pulsed arc supplies the current in pulsed form, and there are two other arc types, such as DC (Direct Current) arc and AC (Alternating Current). It is a phenomenon of gas discharge, which current generated instant spark through some insulating medium (like air). The extent of erosion of tungsten copper electrode surface is related to the power of energy of pulsed arc. For tungsten copper, the main form of electrode erosion is the evaporation of materials.

The effect of pulsed arc is positively correlated with single and total amount of pulsed charge transfer, and the extent of erosion is directly related to single charge transfer when the total amount of charge transfer is fixed. Some experiments shows that when single charge transfer is 1.48C and the total amount of charge transfer is 518C the erosion can not be seen except some Cu evaporating spots. However, the surface of tungsten copper electrode has scaly cracks.

Tungsten Copper Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-copper.com/
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

• < Prev
• Next >