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6.3 Design Technologies for Contacts
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|Miniature profiles (Weld tapes)
|Low material transfer, low contact resistance, Mostly high weld resistance|AgNi0.15, Ag/SnO<sub>2</sub>, Ag/Ni|Contact rivets, welded miniature profile (tape) segments|-|Flasher relays (automotive, > 3 Mio operations)|Low material transfer, high arc erosion resistance, low precious contact resistance|PdCu15 and 40 (Anode) vs. AgNi0.15, AgCu3 (Cathode), Ag/ZnOmaterials, Ag/SnO<sub>2</sub>|Contact rivets, welded miniature profile (tape) and strip segments|-|Breaker points (automotive ignition)|Very high arc erosion resistance, high switching frequency|W|Tips double or discs welded to formed parts or Fe supports|-|Automotive horn contacts|High arc erosion resistance at extremely high number of switching operations|Wmulti layer, Ag/SnO<sub>2</sub>|Contact rivetsNi, W weld buttonsMonel, springs or formed parts with brazed or welded tips|Cu alloy carrier; miniature-|Appliance switches|Low contact resistance, reasonable arc erosion and weld resistance|AgNi0profile width 0.15, Ag/Ni, Ag/SnO<sub>2</sub>, (Ag/CdO)|Contact rivets, welded contact parts|-|Temperature controllers (Thermostats)|Defined contacting point even at slow motion make, high operating temperatures|AgNi0.15, Ag/Ni, Ag/SnO<sub>2</sub>, (Ag/CdO)mm|Contact rivets, welded Welded profile segments for contact partsin communication, weld buttonsmeasurement and control engineering|Manufacturing of cross-|Wiring devices (Light switches)|Low directional contact resistance, reasonable arc erosion and weld resistance|AgNi0.15, AgCu, Ag/Ni, with make peaks also Ag/ZnO, (Ag/CdO)|Contact rivets, welded contact partsspots; most economical precious metal usage
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