The main raw materials for producing neodymium iron boron magnets include rare earth metal neodymium, rare earth metal praseodymium, pure iron, aluminum, boron iron alloy, and other rare earth raw materials. The production process of neodymium iron boron magnets, in simple terms, is as follows: the materials are mixed and melted, and then the melted metal blocks are broken into small particles. Place small particles into the mold and press them into shape. Then sintered. What is sintered is the blank. The shape is usually square or cylindrical. Taking a square as an example, the size is generally concentrated in the length and width of 2 inches, and the thickness is about 1-1.5 inches. The thickness is the direction of magnetization (high-performance magnets are oriented, so there is a direction of magnetization). Then, according to actual needs, cut the blank into the required size and shape. Cut the magnet, chamfer it, clean it, electroplate it, and magnetize it.

The classification of neodymium iron boron magnets can be divided into two types: bonded neodymium iron boron and sintered neodymium iron boron. Bonding is actually injection molding, while sintering is vacuuming and forming through high-temperature heating!

Neodymium iron boron magnets are by far the most powerful permanent magnets. The material grade is N35-N52; Various shapes can be processed according to specific requirements: circular, square, perforated, magnetic tile, magnetic rod, convex, trapezoidal, etc; Despite these advantages, the surface is prone to rusting, so protective surface treatments such as nickel plating, zinc plating, gold plating, epoxy resin plating, etc. are usually required. The applicable ambient temperature for ordinary neodymium iron boron magnets is below 80 degrees Celsius, but there are also several types that can withstand high temperatures of 200 degrees Celsius. Mainly used in electronics, electrical appliances, packaging, motors, toys, leather goods, automotive machinery, etc.