Sintered NdFeB magnets are the most commonly used rare earth magnets. It is the most powerful permanent magnet and is known as “Magneto King” because of its excellent magnetism. Sintered ndfeb magnet not only has high remanence, high coercive force, high magnetic energy product,cost-effective features, can also be processed into various shapes, such as square, cylindrical, ring, tile and other shapes, and widely used in automotive industry, information industry, wind power, micro motors, instruments and meters, all kinds of household appliances, medical equipment industry, etc. Sintered NdFeB magnet because of its easy to be corroded, its surface to be processed. Common methods are phosphating,electrophoresis, organic spray, true air phase deposition, electroplating. Electroplating is generally divided into zinc, color zinc, nickel, nickel copper nickel, silver and gold etc. magnetic materials magnet neodymium magnet n52 magnets magnetic button imanes.