Many use the magnet can give us a lot of convenience, these are some of the different role. Magnet plays a very important role in our modern society, we can make different industries are not the same effect. Diamagnetic are some categories of substances, when in an external magnetic field, the magnetic field will produce a weak magnetic repulsion phenomenon. Refers to a paramagnetic material, the magnetic state. Some material may be affected by external magnetic field generating means with characteristics opposite magnetization vector. Such a substance having a positive magnetic susceptibility. Refers to a ferromagnetic material the magnetic state of having spontaneous magnetization phenomenon. When we use a magnet or the need for good understanding of these products, give us more help. Annular or pie-shaped magnet at the broken surfaces mutually exclusive because: due to the two poles on the ring face or a round surface, i.e., the upper and lower surfaces of the N, S poles, after break, which on both surfaces of the upper and lower magnetic poles still neodymium Zhuhai iron boron magnets, so the fracture surface at the top and bottom two will be two poles Shantou NdFeB magnets for sale, when the fracture surface close, up and down both sides of the same name is the corresponding pole, the pole of the same name is mutually exclusive, so will produce the fracture surface at the poles of the same name illusion. Once up and down which a reversed, we can draw together firmly. In this regard, one might doubt, when the ring or pie-shaped magnet broke for a short section of a bar magnet does not become yet? Indeed NdFeB magnets, especially ring magnet cut out a short When that looks no different from a bar magnet. If so, then does it appear contradictory? In fact, this is because the inner ring or pie-shaped magnet arrangement "small needle" with a bar magnet arrangement "small needle" is along the direction of the magnetic poles of the original, even though The pie-shaped magnet ring or break (of course not shake too strong to prevent lead to changes in the internal structure of the magnet. This phenomenon is actually proven, flaws and contradictions in a simple magnetic knowledge when analyzing complex problems. also shows the distribution of magnetic field lines, by internal vector synthesis results for each component in the surface of the magnet pole distribution will be with the shape of the fracture surface and combined into a new distribution of the corresponding magnetic field lines, and the formation of a magnet with the new poles. Foshan NdFeB magnet manufacturers _ New Tong Xin magnetic NdFeB magnets _ provided by the Dongguan City, Tong Xin magnetic Limited Dongguan City, Tong Xin magnetic Limited (www.dgxtxmagnet.com/) is Dongguan, Guangdong, magnetic leader, over the years, Companies implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the new Tong Xin magnetic leadership with the staff warmly welcome all inquiries to discuss, with new magnetic Tong Xin a better future.