Rare earth metal switched magnetic devices

摘要: Rare earth metal switched magnetic devices that comprise one or more magnets, a rare element positioned in the field produced by magnet(s) and system for controlling temperature of are disclosed. The is formed alloy having properties change from ferromagnetic to paramagnetic when heated above Curie chosen alloy. Preferably at below ambient which device be used—approximately room (70° F.) case intended use factory. Tailored temperatures can obtained alloying metals together and/or with conventional switchable “soft” metals—iron, nickel, cobalt. Three suitable gadolinium, terbium, dysprosium. Switching element. When reduced alloy, cause interact magnet(s). raised loss ferromagnetism substantially reduces, if not entirely eliminates, interaction between Disclosed clamps, lifters, riveters, valves, actuators.