NEC Tokin Develops Soft Magnetic Material To Replace Ferrite NEC Tokin Corp announced July 21, 2015, that it has developed a magnetic material whose magnetic characteristics are better than those of ferrites for high frequencies. The company has not yet decided when to start volume production of it or its price. The new material, "Senfoliage," [...]
Price Situation Of Ferrite Magnet 1, the price of iron ore has recently decreased, we all hope that the price decline of iron ore can bring about the decline of ferrite magnetic powder price. In fact, the price of Ferrite magnetic powder in China has remained at a high and stable state in the passed [...]
Method of moulding radial ring magnet and device thereof Method and apparatus for forming radiation-oriented annular magnets The present invention relates to a method and apparatus for making a radiation-oriented annular magnetic material, and more particularly to a method and apparatus for forming an annular magnet that is radially oriented in a radius or diameter [...]
Plastic Bonded Pressed Magnets / Plastic Bonded Magnets Plastic bonded pressed magnets are the result of the union between thermoplastic binders and permanent magnet powders, and can be made in isotropic or anisotropic qualities. Pressed magnets are magnetic products manufactured with high precision and tailored for each application. Type of material Magnetic powders: ferrite or [...]
Bonded Magnet Materials and Processing Options Bonded magnets are an important but often overlooked group of products that magnetic circuit and device designers should consider when choosing the optimum permanent magnet type for their specific application need. In their most basic form bonded magnets consist of two components; a hard magnetic powder and a non-magnetic [...]
The Manufacturing Process of Sintered Neodymium Magnet - How Neodym Magnets are made? Sintered neodymium magnet is manufactured by vacuum powder metallurgy process. The manufacturing process is as follows: 1. Raw Material Neodymium (Nd), Iron (Fe), Boron (B) and other addictives are measured according to the preferred element composition. Raw NdFeB material Raw Material of [...]
The role of magnet powder in NdFeB Magnetic powder is an abbreviation for magnetic powder, and is an aggregate composed of a large amount of NdFeB basic material particles and interparticle voids. The powder body is a substance between a solid and a colloid. Solids below 0.1 μm are referred to as colloids, while solids [...]
Typical Compression Bonded Magnetic Properties Many suppliers publish specifications for a nominal 10 MGOe magnets with a minimum limit of 9 MGOe. Similar for a nominal 11 MGOe magnet; minimum limit is 10 MGOe. Have to design to lower limit of BHmax Typical Compression Bonded Magnetic Properties BHmax Improvement in Compression Bonded Magnets The BHmax of a compression bonded isotropic NdFeB magnet is influenced by the following two factors: 1. Volume fraction of magnetic phase in the magnet – typically measured by the density of the magnet. • We are investigating increasing the pressing pressure which requires special press construction, lubricants and tooling materials – current production pressing pressures are 7tonnes/cm2 for 5.9 g/cm3 and 10MGOe; estimated that > 20 tonnes/cm2 required for 6.3 g/cm3 and > 11 MGOe. • Optimize the particle encapsulation chemistry and process. • Tailored multimodal PSD’s for maximum packing density. • Particle shape control. 2. Magnetic powder Br/BHmax • Increase isotropic Br of powders while maintaining sufficient Hci to have “linear” B‐H demagnetization characteristic at the application temperature. Arc Permanent Magnet Neodymium Nickel N35UH Neodymium Generator Arc Magnet Nickel N33H Arc Neodymium Magnet Nickel N30H Segment Neodymium Magnet Nickel N52