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July 19, 2013

Manufacturing Methods about Alnico Magnets

Alnico magnets are manufactured through either casting or sintering processes. Cast magnets are manufactured by pouring a molten metal alloy into a mold and then further processing it through various heat-treat cycles. The resulting magnet has ...
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July 19, 2013

Magnetic materials

The term magnet is typically reserved for objects that produce their own persistent magnetic field even in the absence of an applied magnetic field. Only certain classes of materials can do this. Most materials, however, produce ...
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July 19, 2013

Fun and profit – Rare earth magnets

People can academically appreciate the fact that every electric motor in the world  works because of magnetism. One can reflect on the fact that every transformer uses it, too. CRT monitors, TVs, brushless DC motors, power ...
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July 19, 2013

The Production of NdFeB Magnets

The NdFeB magnets are manufactured with the alloy of Neodymium-Iron-Boron and small amount of added ingredients such as Dysprosium and Praseodymium, which can help increasing the corrosion resistance of the products. The actual chemical compositions differ ...
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July 19, 2013

An Introduction to Neodymium Magnet

Neodymium Magnet, also known as Neo magnet, is a type of rare-earth magnets made from an alloy containing, most common, the chemical elements Neodymium, Iron and Boron (NdFeB or Neo magnet for short). The Neodymium-Iron-Boron magnet ...
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July 19, 2013

Protective Coatings/Surface Finish for Neodymium Magnets

A Neodymium magnet does not corrode and will retain its performance theoretically forever in dry environment (if not subjected to excessive heat, radiation or strong external magnetic fields). However, if it is placed in a wet ...
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July 19, 2013

Magnetization Direction for Neodymium Magnets

Neodymium magnets vary in shapes and sizes, and different shapes have their own corresponded magnetization directions. Magnetization Direction for Disc & Cylinder Type Disc and Cylinder magnets can be axially or diametrically magnetized. Axial Magnetization Diametrical ...
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July 19, 2013

Neodymium Magnets Materials Shortage in the Future

Neodymium magnets were discovered in 1982, by General Motors, Sumitomo Special Metals and the China Academy of Science. They were developed in response to the high price of Samarium-Cobalt magnets, and they are now the strongest ...
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