Recent Development of Hot-pressed and Hot-deformed Nd-Fe-B Permanent Magnetic Materials
This paper mainly reviews the preparation technologies of hot-pressed/hot-deformed Nd-Fe-B magnets.The inhomogeneity causes and characteristics of hot-pressed/hot-deformed Nd-Fe-B bulks and backward extruded Nd-Fe-B rings,the preparation technologies of high performance hot-pressed/hot-deformed Nd-Fe-B magnets,the characteristics and classification of hot-pressing Nd-Fe-B rings,the crack causes,solutions,die sticking and lubrication of backward extruded Nd-Fe-B rings are elaborated.In addition,the perspectives for the critical preparation technologies of Nd-Fe-B magnetic rings are prospected.
hot-pressing and hot-deformation processNd-Fe-B bulkNd-Fe-B ringmagnetic properties
NETL
NSTL
万方数据
