MANUFACTURING METHOD OF SINTERED MAGNET

A method of producing a sintered magnet according to an exemplary embodiment of the present disclosure includes the steps of: producing an R-Fe-B based magnet powder; sintering the R-Fe-B based magnetic powder to produce a sintered magnet; producing an eutectic alloy containing Pr, Al, Cu and Ga; an...

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Bibliographische Detailangaben
Hauptverfasser:	KIM, Tae Hoon, CHOE, Jinhyeok, CHOI, Ikjin, UH, Hyounsoo, KIM, Ingyu, KWON, Soon Jae, SUNG, Nakheon, SHIN, Eunjeong
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ALLOYS BASIC ELECTRIC ELEMENTS CASTING CHEMISTRY ELECTRICITY FERROUS OR NON-FERROUS ALLOYS INDUCTANCES MAGNETS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY PERFORMING OPERATIONS POWDER METALLURGY SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	A method of producing a sintered magnet according to an exemplary embodiment of the present disclosure includes the steps of: producing an R-Fe-B based magnet powder; sintering the R-Fe-B based magnetic powder to produce a sintered magnet; producing an eutectic alloy containing Pr, Al, Cu and Ga; and infiltrating the eutectic alloy to the sintered magnet, wherein the R is Nd, Pr, Dy, Ce or Tb, and wherein the infiltration step includes a step of applying the eutectic alloy to the sintered magnet and a step of heat-treating the sintered magnet to which the eutectic alloy is applied.