The main tasks of switching electrical contacts are to close and open electrical circuits, in the closed stage to transmit electrical signals without distortion, and to carry currents with the least amount of energy losses. In their wide range of applications silver based contact materials have to meet different requirements which cannot all be fulfilled by pure silver. The development of alloys made by melt-metallurgical processes and powder metallurgical composite materials broadened the range of properties of silver based materials significantly. This offers the user a wider spectrum of silver materials, optimized for a variety of application requirements.
Wires from silver and silver alloys (i.e. AgNi0.15, AgCu3, AgPd30), and powder metallurgical silver-based materials (i.e. Ag/Ni, Ag/SnO , Ag/ZnO) are manufactured by extrusion and subsequent drawing and annealing process steps. They are the starting material for the manufacture of a variety of contact parts and components.
All technologies shown are utilized in SAXONIA group and we offer any required depth of manufacturing integration.
Flat or shaped contact tips, welded or brazed to contact carriers, are widely used in higher power electrical switching devices. Depending on the contact material and specific shapes these tips are produced by various manufacturing technologies. The most frequently used ones are:
DODUCO ESPAÑA manufactures solid, composite bimetal and trimetal contact rivets for relays and all kinds of switching devices for the measurement and control of electricity.
On over 100 different rivet manufacturing machines, including internally developed cold and hot bonding machines, we produce about 1.5 billion rivets annually for customers around the world. In addition we supply DODUCO’s internal stamped parts production with contact rivets.