摘要
Highlight in NdFeB Research: NdFeB is the best available magnetic material and the increase of its energy product has been a key issue for high-tech application where the main market of the magnet is located. Prof. Hongzu Xie of Baotou Research Institute of Rare Earth has recently completed his research project on the preparation of high energy product NdFeB magnet and constructed a production line with the capacity of 10 metric tons of NdFeB magnet per annum in the institute. His process strictly controls the content of oxygen which is a key knowhow for raising the energy product of the magnet. Therefore, the so produced magnet has the oxygen content in the range of 800-1000 ppm. In addition, he employs a one way mold-pressing technique of which the pressure is vertical to the magnetic field and manufactures the NdFeB blocks
