Apparatus for preparing anisotropic ring-shaped sintered ferrite magnets

Abstract

This invention provides a device for preparing anisotropic annular sintered ferrite magnets, belonging to the field of sintered ferrite magnet preparation technology. It includes a frame, a forming mold assembly mounted on the frame and equipped with an anisotropic orientation magnetic field generating mechanism, a sintering mechanism, and a conveying assembly connecting the forming mold assembly and the sintering mechanism. By integrating the frame, forming mold assembly, sintering mechanism, and conveying assembly, the device constructs a complete integrated preparation system. The annular female mold, central mandrel, and upper and lower pressure heads of the forming mold assembly form a forming cavity adapted to the anisotropic annular magnet, providing a stable structural foundation for magnetic powder filling, orientation, and forming. This achieves a smooth connection between magnetic powder forming and subsequent sintering, effectively solving the problems of low preparation efficiency and poor product quality caused by the disconnection of various stages in traditional devices, and laying a structural foundation for improving the magnetic properties of the magnets and the yield rate of the finished product.

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