Fabrikasi Magnet Permanen Bonded NdFeB untuk Prototipe Generator Nanang Sudrajat, Tony Kristiantoro

Abstract

Bonded permanent magnets are made by mixing a magnetic powder material Neodymium Iron Boron (Nd-FeB) commercial MQP type 16-7 with a polymer material powder phenol formaldehyde (Bakelite) and pvc resin powder. Comparison between the composition of NdFeB powder and the polymer was varied at 80: 20, 90: 10 and 95: 5 wt% respectively. This mixture is then pressed with a hot press system. Magnetic properties were characterized by using Permagraph Magnet Physik Germany. The best value obtained for the composition of 95: 5% by weight to the value of Br = 6.04 kg, the value Hc = 5.883 Koe, Bhmax = 6.29 MGOe. Fabrication is done by the size of the magnetic d = 5cm, t = 0.8 cm and was applied to the prototype generator.