Introduction

Composite tungsten electrodes may also be referred to multiple composite rare earth tungsten electrodes, it is a new type tungsten electrode after thorium and cerium tungsten electrode. This type of tungsten electrode is added the rare earth oxide, which would improve the life time of the composite tungsten electrodes, and the combination property has also been improved to some extent. So, once launched, it has enjoyed a great popularity by public.

Trademark

Composite tungsten electrodes mainly by adding 2% rare earth oxides.

Charateristics

The rare earth oxide added into composite tungsten electrode can improve electrode welding performance greatly. This type of electrode balance mobility and the evaporation rate of the internal electronics, so that all aspects of the performance of the tungsten electrode can reach its ultimate. And it is easy to arc, the effect of repeated arc is also very good. Generally speaking, arc characteristics and stability of the ternary complex electrodes are better than binary complex electrode, because the former contains more rare earth which can further improve the welding performance.

Application

Generally, silver tungsten electrode is mainly used for AC welding of aluminum and magnesium alloys. Thanks to its excellent welding resistance and other properties, it is also widely used in high temperature materials, and microelectronic material. On the other hand, a small amount of cobalt in silver tungsten electrode can reduce the ability of the contact resistance to a certain extent.

Content

Currently, the most common used on the market is a ternary complex of rare earth tungsten electrode, containing 1% and 4% thorium of thorium wolfram electrode and 2% yttriumof yttrium wolfram electrode. It can also be made by mixing different rare earth element. These three elements can make welding performance of composite electrode is better than the other electrodes.