Dongguan magnet should be called magnet strength magnets phone brand, English Magnet, magnet now divided into two categories, one is soft, one hard magnetic; including silicon and software Dongguan soft magnetic core; hard magnetic include Alnico, SmCo, ferrite and NdFeB magnets which force phone manufacturers, the most expensive is samarium cobalt magnet, the cheapest is ferrite magnets, NdFeB magnetic highest performance steel, but the performance of the most stable, best temperature coefficient is Alnico, the user can select different hard magnetic products according to different needs. Performance Dongguan magnets: remanence Br: permanent magnet magnetized to saturation powerful phone technology magnet, and after removing the external magnetic field, called the retained residual magnetic flux density Br. Coercive force Hc: to technical saturation magnetization of the permanent magnet B is reduced to zero, the need to add a reverse magnetic field strength is called magnetic induction coercive force, referred to as coercivity magnetic energy product BH: Dongguan magnet represents gas clearance space. Magnetic energy density established, i.e., the static magnetic energy per unit volume of the air gap. As this energy is equal to the product of Bm and Hm Dongguan magnets, so called energy product. Magnetic field: Space for generating a magnetic pole surface magnetic field effect of the magnetic field: the magnetic flux density of the permanent magnet surface 3 to a specified location. Q: What factors affect the price of the magnets have? A: 1) Material cost: performance requirements, the higher the costs, such as NdFeB magnets, N45 N35 price is far higher than the price; 2) the processing costs: the more complex the shape, the higher processing costs; more stringent tolerances, processing The higher costs; smaller batch processing cost is higher. 4. Q: What kind of surface magnetic field strength up? A: The same shape, the same size as the surface magnetic field strength of the magnet NdFeB followed in descending sorting> SmCo> Alnico> Ferrite> Rubber magnets. Examples: Cylindrical D10x5mm NdFeB: 4 Professional powerful phone magnets 200 gauss samarium cobalt: 3,300 Gauss Ferrite: 1,200 gauss magnetic data table above are for reference only. Powerful magnets handset manufacturers, the new Xin Tong magnetic, powerful magnets provide phone from Dongguan City Tong Xin magnetic Limited. Dongguan City, Tong Xin magnetic Limited (www.dgxtxmagnet.com/) Dongguan, Guangdong, magnetic leader, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. New Tong Xin magnetic leadership with the staff warmly welcome all inquiries to discuss, with new magnetic Xin Tong better future.