Material and performance magnets
Many different types of magnets, permanent magnet and soft generally divided into two categories, we are talking about magnets, the magnets are generally refers to the permanent magnet
Permanent magnet is divided into two large magnets classification: the first category are: metal alloy magnets include neodymium magnets Nd2Fe14B), samarium cobalt magnets (SmCo), Alnico magnets (ALNiCO)
The second category is: ferrite permanent magnet material (Ferrite) 1, NdFeB magnet: it is found in the commercialization of the highest performance magnets, known as Magneto, with a high maximum magnetic energy product (BHmax) higher than the ferrite (Ferrite) more than 10 times. Machining performance itself is also quite good. Operating temperature up to 200 degrees Celsius. And its hard, stable performance, there is a very good price, so its application is extremely broad. But because of its chemical activity is very strong, it must deal with its surface coating. (E.g. plating Zn, Ni, electrophoresis, passivation, etc.).
2. ferrite magnets: It is mainly raw materials, including BaFe12O19 and SrFe12O19. Manufacturing method made by ceramic technology, texture rather hard, is a brittle material, due to ferrite magnets have good temperature resistance, low prices, moderate performance, has become the most widely used permanent magnets.
3. alnico magnet: is an alloy of aluminum, nickel, cobalt, iron and other trace metal elements. Casting process can be processed into different sizes and shapes, good workability. Cast Alnico magnet has a reversible temperature coefficient of the lowest operating temperature of up to 600 degrees Celsius. Alnico magnet products are widely used in various instruments and other applications.
4, samarium cobalt (SmCo) on the basis of different components into SmCo5 and Sm2Co17. Because the material is expensive and its development is restricted. Samarium cobalt (SmCo) as a rare earth permanent magnet, not only has a higher energy product (14-28MGOe), reliable coercivity and good temperature characteristics. Compared with NdFeB magnets, samarium cobalt magnets better suited to work in high-temperature environments. smco magnet
Permanent magnet is divided into two large magnets classification: the first category are: metal alloy magnets include neodymium magnets Nd2Fe14B), samarium cobalt magnets (SmCo), Alnico magnets (ALNiCO)
The second category is: ferrite permanent magnet material (Ferrite) 1, NdFeB magnet: it is found in the commercialization of the highest performance magnets, known as Magneto, with a high maximum magnetic energy product (BHmax) higher than the ferrite (Ferrite) more than 10 times. Machining performance itself is also quite good. Operating temperature up to 200 degrees Celsius. And its hard, stable performance, there is a very good price, so its application is extremely broad. But because of its chemical activity is very strong, it must deal with its surface coating. (E.g. plating Zn, Ni, electrophoresis, passivation, etc.).
2. ferrite magnets: It is mainly raw materials, including BaFe12O19 and SrFe12O19. Manufacturing method made by ceramic technology, texture rather hard, is a brittle material, due to ferrite magnets have good temperature resistance, low prices, moderate performance, has become the most widely used permanent magnets.
3. alnico magnet: is an alloy of aluminum, nickel, cobalt, iron and other trace metal elements. Casting process can be processed into different sizes and shapes, good workability. Cast Alnico magnet has a reversible temperature coefficient of the lowest operating temperature of up to 600 degrees Celsius. Alnico magnet products are widely used in various instruments and other applications.
4, samarium cobalt (SmCo) on the basis of different components into SmCo5 and Sm2Co17. Because the material is expensive and its development is restricted. Samarium cobalt (SmCo) as a rare earth permanent magnet, not only has a higher energy product (14-28MGOe), reliable coercivity and good temperature characteristics. Compared with NdFeB magnets, samarium cobalt magnets better suited to work in high-temperature environments. smco magnet
Tags: neodymium magnets magnet Smco magnets