The influence of the ratio of Alg, W component and porosity upon the resistivity of Ag - W electro - contact material were examined by the computer simulation approach .
2
锆钨电极适用于镁铝及其合金的交流焊接。
Zirconiated Tungsten is most commonly used for AC welding of aluminum and magnesium alloys.
3
纯钨电极（自动气象站分类EWP）含有钨99.50%，最高消费率已全部电极通常比“合金”。
Pure tungsten electrodes (AWS classification EWP) contain 99.50% tungsten, have the highest consumption rate of all electrodes and are typically less expensive than "alloyed" counterparts.
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