Patent ID: 8845957
Filing Date: 2014-09-30
Classification: B22F,H01F

Abstract:
1. A method for producing a magnetizable metallic shaped body composed of a ferromagnetic raw material which is in the form of powder or particles, comprising the steps of: (a) first compression of a raw material such that adjacent particles are connected to one another by an interlock and/or integral joint in places on their circumferential surface and forming cavities, the first compression is carried out by sintering and/or presintering of a powder, which is compressed by shaking, as the ferromagnetic raw material; (b) production of an electrically insulating surface coating on the circumferential surfaces of the particles in areas outside the connection sections; (c) second compression of the particles which have been provided with the surface coating, such that the cavities are reduced in size or eliminated; and (d) forming the shaped body.