How to define the performance of the magnet? There are the following three performance parameters to determine the performance of the magnet: remanence Br: permanent magnet magnetized to technical saturation, and after removing the external magnetic field, the reserved called remanence Br. Coercive force Hc: to technical saturation magnetization of the permanent magnet B is reduced to zero, and the need to increase the magnetic field strength is called reverse coercivity magnetic induction, referred to as the coercive force of the magnet stone sink hole magnet where generic sale the magnet is a magnet. Magnet can suck iron, nickel, cobalt, as well as some of its alloys, commonly known as a magnet. Many of the original iron magnet factory having two opposite poles direct counterbore magnet, in the absence of magnetic field, these original magnets disordered? Their magnetic cancel each external magnetism is not displayed. When the iron close to the magnet, the former under the action of the magnets magnet magnets neatly arranged together, so that one end of the magnet close to the magnet having a polarity opposite to and attract each other. This shows that the presence of the original iron magnet can be magnetized by a magnet. And copper, aluminum and other metals is not the original magnet structure, it can not be attracted by a magnet. Factory outlets with straight hole Magnet | Magnet | New Tong Xin magnetic power provided by the Dongguan City, Tong Xin magnetic Limited. Xin Tong, Dongguan City, the new magnetic Limited (www.dgxtxmagnet.com/) strong, credible, in Dongguan, Guangdong magnetic materials industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the new Tong Xin magnetic and you hand into the brilliant, for a better future!