NdFeB Magnet General Description NdFeB Rare Earth Magnets Rare Earth Magnets are including Super-Strength Rare Earth Magnet—Sintered NdFeB magnets, have the characteristics of: Extreme strong Br Resident induction Excellent demagnetization resistance capability Good Price relative to its high magnetic properties Coating is needed for NdFeB Surface Treatment Method: Type Information Metallic Zinc, Nickel, Nickel+Nickel, Copper+Nickel, Nickel+Copper+Nickel Gold, Organic Epoxy, Nickel+Epoxy coating Temporary Surface: Passivation Sintered NdFeB Magnets are prone to corrosion in humid environments, additionally, they are more prone to oxidation than any other magnet alloy. So they usually need surface treatment according to customer's requirements to protect magnet. We can offer the plating included: Ni, Zn, Ni-Cu-Ni, Silver, Gold, Passivation, Epoxy Resin, etc. They are widely used in DC motors, linear motors, loud speakers, MRI, medical apparatus, transmission machine, lifting machine, and so on. Both rare earth neodymium iron boron and samarium cobalt are available in sintered as well as bonded forms. Sintered NdFeB magnetic parts, however, will produce the highest magnetic properties. NdFeB is sensitive to heat, which should not be used in the environments that exceed 200°C. Bonded NdFeB magnets are generally low in properties due to the special process of gluing the powder in a mold. The bonded form of the material can be produced with close tolerance off tools with little or no finishing required. The sintered form usually some finishing operations in order to hold close mechanical tolerances. Do NOT use Neodymium Iron Boron magnets under the following conditions: In an acidic, alkaline, or organic solvent (unless you are going to hermetically seal the magnet inside a can) In water or oil (unless hermetically sealed, or you are prepared to accept a limited life) In an electrically conductive liquid, such as electrolyte containing water In a hydrogen-containing atmosphere, especially at elevated temperatures. Hydrogenation, a process where the Hydrogen molecule will react with the NdFeB, will occur, causing the magnet to rapidly deteriorate Environments containing corrosive gasses, such as Cl, NH3, Nox, etc. In the path of radioactive rays |
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