Silver tungsten materials are used in industrial and domestic circuit breaker applications

where good weld and erosion resistance is important. Various grades are available-the higher silver grades have higher conductivity, and the higher tungsten grades have greater erosion and

weld resistance. High contact pressures are required to ensure effective operation if use for frequent high current switching, where mixed oxides of silver-tungsten can be formed, giving high contact resistance

ⅠProduced powder metallurgic ally in single pressed techniques, subsequently infiltrated with Ag in liquid phase.

ⅡThe lower side of the contact tips is shaped and infiltrate with a certain excess of Ag.

Ⅲ The lower side can be additionally provided with a layer of a brazing alloy

Ⅳ Processing in the shape of tips.