Types and main application characteristics of Magnets

- Jul 20, 2019-

Currently, there are 5 kinds of magnetic materials available on the market.


From weak to strong, they are rubber magnets, ferrite magnets, alnico magnets, samarium cobalt magnets, and ndfeb magnets.


The following table briefly describes the properties of each material to help you choose the right magnet.


Rubber magnet

The magnet is made of a rubber-like material that folds and curls and can be cut with scissors in a dark brown color. The surface can also stick PVC adhesive paper or glue.

Rubber magnet can be made with glue on both sides for easy use.

Main applications: arts and crafts, logo board, display board, magnetic calendar, business card, phone book, etc。


ferrite Magnet


Ferrite Magnet Is the most widely used magnet, cheap, but relatively strong rubber magnet magnetic force. The material itself is hard and brittle with a dark gray surface.


Circular, circular, square, tile. There are many sizes to choose from


Ferrite Magnet is mainly used in automobile motor (windshield wiper, start, warm air, fuel pump, and chair motor), magnetic control and massage chair of fitness car, arts and crafts, adsorption parts, toys, loudspeaker, etc.


Aluminum nickel and cobalt


Magnetic materials first used in the technical field. It can be used at very high temperatures - nearly 500 degrees Celsius. After processing, the surface is bright like stainless steel.


Circular, cylindrical, square, horseshoe, etc.


Cast al-nickel-cobalt products are mainly used in various sensor, instrument, electronics, electromechanical, medical, teaching, automobile, aviation, military technology and other fields; Sintered alnico products are widely used in various meters, magnetic sensors, controllers, automotive igniters, odometers and other application fields.


Samarium cobalt


Rare earth magnets, very brittle but high temperature resistant, can be used at 300 degrees Celsius.


Circular, circular, square, tile. There are many sizes to choose from


Widely used in aerospace, national defense, microwave devices, communications, medical equipment, instruments, instruments, magnetic transmission devices, sensors, magnetic processors, motors and other high-tech fields and high temperature environment.


ndfeb


High-performance rare earth magnets are not as brittle as samarium cobalt, but they are not as hot to use. It is easy to oxidize under normal temperature, so the surface must be electroplated.


Circular, circular, square, tile. There are many sizes to choose from


The main application fields are: VCM, permanent magnet motor, generator, nuclear magnetic resonance imaging instrument, magnetic separator, audio speaker, magnetic transmission, magnetic lifting, instrumentation, liquid magnetization, magnetic therapy equipment and so on, has become the automotive manufacturing, general machinery, electronic information industry and cutting-edge technology indispensable functional materials.