THERMOSTABLE ISOTROPIC BONDED NDFEB MAGNET, AND MANUFACTURING METHOD THEREOF

摘要

The present invention relates to the technical field of functional materials, and provides a thermostable isotropic NdFeB bonded magnet and manufacturing method thereof. In the present invention, an isotropic NdFeB magnet powder is used as a magnetic substance, sodium silicate is used as a primary binder, and a thermostable epoxy resin is used as an auxiliary binder, so as to obtain the isotropic bonded NdFeB magnet. The resulting magnet has its thermostability improved significantly, with the operating environment temperature up to 200 ˚C, and has advantages of an anti-permeation property, corrosion resistance, etc. The present invention provides a thermostable isotropic bonded NdFeB magnet and manufacturing method thereof, and the resulting magnet has superior magnetic performance and can be used at a higher temperature. Moreover, the implementation process utilizes simple equipment, is easy to operate, and has a lower cost, thus facilitating mass production, creating huge financial benefits, and having great applicability in the field of permanent magnet materials.