Only separated from the magnetic material can be adsorbed to play the role in order to cut off the magnet on the magnetic field, and the thicker the material, the better the effect of magnetic isolation. Strongest magnet highest performance magnets are rare-earth magnet, rare earth magnet and is the most powerful NdFeB magnets. However, at 200 degrees Celsius environment, is the most powerful samarium cobalt magnets. Determine why the size of the magnet has a magnetic Magnetic, is the Earth's rotation and its magnetic field because the current will continue to strongly bound, and finally the entire planet becomes a big field. Mineral on Earth, such as nickel, cobalt, iron and other substances because of the Earth's rotation and the rotation, and thus became a natural magnet. We all know that there is a gravitational field between substances. Similarly with the magnetic field, a field pole covered with the surrounding space. The size of the magnetic field can be represented by the number of the imaginary lines of magnetic force to said magnetic field lines which is more dense areas where the strong magnetic field, the magnetic field lines opposite if local thinning of the weaker. Magnet producing some friction material may be a magnet material is not iron, is steel round pie magnet, but not all can be made of a magnet steel profiled magnet, because it contains substances which cylindrical magnet, can not act as a stainless steel magnet. We manufacture magnet magnet with a screwdriver and the material you need, take a magnet to metal parts rub screwdriver, from one end to the other end, they repeated friction, you can create one with a magnetic screwdriver . Most magnetic orientation direction of the magnet can be magnetized concept to saturation in the same direction, that direction is called "a magnetization direction" (direction of orientation). No magnet magnetic orientation direction (also called isotropic magnets) than orientation magnets (also called anisotropic magnet) is much weaker. Rectangular magnet magnet _ _ Zhongshan Xin Tong new magnetic 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!