Xinyuan rectangular permanent magnet is a common magnet material and must be a permanent magnet material. The composition and structure of the permanent magnet material is very special, and it has a mysterious color on it.
1. Oxide magnets
The magnetism of oxidation magnets is uniform and stable and will never fade; it is easy to make small and same-volume products; it has high resistance and is almost insulating; its raw material supply Plenty and the product is cheap.
2. Rubber magnet
Rubber magnet is a raw material mixed with oxidized magnet and rubber. Glue magnets can easily be made into more complex shapes, such as circles, flat plates, strips, tubular injection molding and special shapes. Adhesive magnets are very soft. Hard magnets will be easily broken by vibration, but rubber magnets will not be affected. The softness of the rubber magnets can be made according to the needs of use, and can be cut to a suitable size at any time. It can be used in refrigerator magnetic strips, stationery, printed advertisements, teaching supplies, etc.
3. Samarium-cobalt magnet
Samarium-cobalt magnet is an ultra-high-performance magnet mainly composed of samarium, cobalt and other rare earths. Its working temperature can be as high as 300 degrees, and it is corrosion-resistant and oxidation-resistant. Because of this advantage, electroplating is not required. At present, it has been widely used in detectors, generators, radars, instruments, and other jingmi technology fields.
4. Neodymium iron stilbene magnets
Neodymium iron stilbene magnets are rapidly and widely developed and used in computer equipment, electronic parts, and medical equipment due to their high performance and reasonable price. , petrochemical industry, audio equipment, etc. Its temperature resistance ranges from 80 to 200 degrees. Its shortcoming is that it is easy to oxidize and rust, so its surface is usually electroplated, such as zinc, nickel, tin, silver, gold, etc. It can also be phosphated or epoxy resin to slow down the oxidation rate.
5. Alloy magnets
Alloy magnets are composed of aluminum, nickel, and cobalt. Due to the high residual magnetic flux density and good temperature conditions, alloy magnets are widely used. High hardness, low temperature coefficient and effective use of magnetic properties make alloy magnets suitable for use in variable speed generators, speakers, microphones, telephones, voltmeters, measuring instruments, etc.