1. Alnico alnico is made of aluminum to nickel-iron alloy development tool Xie Gang magnet manufacturers, the model can be made of aluminum, nickel and cobalt alloys are mainly LNG34, LNG52, LNGJ32, LNGJ56 like. Since the main characteristic is the high Alnico Br, low Hc of permanent magnet material, the relative magnetic permeability of 3 or more magnets Hengli tool manufacturers, so in the specific application, the magnetic pole to be done to grow long rods or rod, to minimize the effect of demagnetizing field. Alnico magnet itself low coercivity, so in the course should be strictly prohibits any contact with Alnico magnet iron material, in order to avoid leaving permanent partial demagnetization magnetic circuit flux distribution is distorted. Advantages Alnico magnet temperature coefficient, and the permanent characteristic degradation due to temperature changes occur is small, but the material is hard and brittle, processing difficulties. 2. Ferrite permanent magnetic materials ferrite permanent magnet materials is one of the widely used permanent magnet materials, its main ingredient is MoFe2O3. This has the advantage that: (1) a large coercive force Hc. Ferrite permanent magnet material coercive force Hc between alnico material and rare earth cobalt permanent magnet material. Due to its low residual magnetism, it is generally designed to fit flat shape; (2) lightweight tool Shek Pai magnet factory, density (4.6 ~ 5.1) × 103 kg / m3; rich (3) sources of raw materials, cheap, resistance oxidation, corrosion resistance; (4) large crystal magnetic anisotropy constant; (5) the demagnetization curve is approximately linear. The disadvantage is a low remanence, the temperature coefficient of the magnet tool, friable. Classification magnet magnet can be grouped into "permanent magnet" and "non-permanent magnets." Permanent magnet may be a natural product, known as lodestone, also be made artificially produced (the strongest magnets are neodymium magnets). The non-permanent magnets, magnetic only under certain conditions there, usually in the form of an electromagnet to produce, i.e. the use of electric current to strengthen the magnetic field. Magnet magnetic molecules into the interior of the magnet is not magnetized magnet (magnet molecular theory) are randomly arranged, arranged in the magnetization process after the magnetic molecules have rules. In this case, N pole and S-pole magnetic molecules will be facing in the same direction so that the magnet has a magnetic and become magnets. At the same time, the presence of the opposite poles of the magnetic poles and an equal amount on the same magnet. Enterprises stone tool tools magnet magnet manufacturers _ _ professional supply, inexpensive high quality provided by the Dongguan City, Tong Xin magnetic Limited. Dongguan City, Tong Xin magnetic Limited (www.dgxtxmagnet.com/) strong, credible, magnetic materials in Dongguan, Guangdong and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improve the innovation concept will lead the new Xin Tong magnetic into the brilliant and you work for a better future!