Attributes Of Neodymium Disc Magnet Ceramic Material

  •   What is a permanent magnet?

      A permanent magnet is an object made from a material that is magnetic and creates its own persistent Neodymium Disc Magnet factory. An everyday example is a refrigerator magnet used to hold notes on a refrigerator door.

      Permanent Magnets Materials

      AlNiCo

      Ceramic

      SAMARIUM COBALT

      NEODYMIUM

      Some of the shapes of permanent magnets come in:

      Ring Magnets

      Bar Magnets

      Disc Magnets

      Cylinder Magnets

      Cube Magnets

      Magnetic Balls

      Block Magnets

      Horseshoe Magnets

      Pyramid Magnets

      Rod Magnets

      Wedge Magnets

      Alnico Magnets Characteristics

      Excellent temperature stability, high residual induction, and relatively high energies characterize Alnico materials, composed primarily of alloys of Aluminum, Nickel, and Cobalt. They are manufactured through either a casting or sintering process. Cast magnets may be manufactured in complex shapes, such as horseshoes, not possible with other magnet materials. Sintered Alnicos offer slightly lower magnetic properties but better mechanical characteristics than cast Alnicos.

      Alnico is hard and brittle. Machining or drilling cannot therefore be accomplished by ordinary methods. Holes are usually cored in at the foundry, and magnets are cast close to final size and then finish machined to closer tolerances.

      Alnico has a low coercive force, and is easily demagnetized if not handled with care. For optimum performance of Alnico 5, the magnetic length should be approximately 5 er magnet should be about 1.250" long. Because of its higher coercivity, Alnico 8 may be used in shorter lengths and in disc shapes.

      Ceramic Magnets

      Attributes of Ceramic Material

      High intrinsic coercive force

      Tooling is expensive

      Least expensive material compared to alnico and rare earth magnets

      Limited to simple shapes due to manufacturing process

      Lower service temperature than alnico, greater than rare earth

      Finishing requires diamond cutting or grinding wheel

      Lower energy product than alnico and rare earth magnets

      Most common grades of ceramic are 1, 5 and 8 (1-8 possible)

      Grade 8 is the strongest ceramic material available

      Applications of Ceramic Magnets

      Speaker magnets

      DC brushless motors

      Magnetic Resonance Imaging (MRI)

      Magnetos used on lawnmowers and outboard motors

      DC permanent magnet motors (used in cars)

      Separators (separate ferrous material from non-ferrous)

      Used in magnetic assemblies designed for lifting, holding, retrieving and separating

      Rare Earth Magnets (Samarium Cobalt & Neodymium)

      Collectively known as Rare Earth magnets, Samarium Cobalt (SmCo) and Neodymium Iron Boron (NdFeB) magnets are alloys of the Lanthanide group of elements. Rare Earth magnets are the most advanced commercialized permanent magnet materials today. SmCo magnets are available in a number of different grades that span a wide range of properties and application requirements. SmCo magnets are brittle and machining operations should be performed prior to magnetization, using diamond tools. We are equipped to fabricate these materials to blueprint specifications.

      Samarium Cobalt

      Attributes of Samarium Cobalt Material Applications of Samarium Cobalt Magnets

      Computer disc drives High resistance to demagnetization

      High energy (magnetic strength is strong for its size)

      Good temperature stability

      Expensive material (cobalt is market price sensitive)

      Computer rigid disc drives, printers and speakers

      Neodymium Magnets

      Neodymium magnets (Nd-Fe-B) are composed of neodymium, iron, boron and a few transition metals. These magnets are extremely strong for their small size, metallic in appearance and found in simple shapes such as rings, blocks and discs.

      Attributes of Neodymium Material

      Very high resistance to demagnetization

      High energy for size

      Good in ambient temperature

      Low working temperature for heat applications, but higher levels of heat resistance materials are being introduced periodically

      Sensors

      Traveling wave tubes

      Linear actuators

      Satellite systems

      Motors where temporary stability is vital

      Samarium cobalt magnets SmCo) are composed of samarium, cobalt and iron.

      Samarium Cobalt

      Attributes of Samarium Cobalt Material Applications of Samarium Cobalt Magnets

      Applications of Neodymium Magnets

      Magnetic separators

      Linear actuators

      Microphone assemblies

      Servo motors

      DC motors (automotive starters)

      Attributes of Samarium Cobalt Material Applications of Samarium Cobalt Magnets

      Rare Earth Magnets (Samarium Cobalt & Neodymium)

      Collectively known as Rare Earth magnets, Samarium Cobalt (SmCo) and Neodymium Iron Boron (NdFeB) magnets are alloys of the Lanthanide group of elements. Rare Earth magnets are the most advanced commercialized permanent magnet materials today.

      Computer disc drives High resistance to demagnetization

      High energy (magnetic strength is strong for its size)

      Good temperature stability

      Expensive material (cobalt is market price sensitive)

      Do not hesitate to contact us,as an professional Sm2Co17 Magnet manufacturer, We will offer the best service for every customer.

      SmCo magnets are available in a number of different grades that span a wide range of properties and application requirements. SmCo magnets are brittle and machining operations should be performed prior to magnetization, using diamond tools. We are equipped to fabricate these materials to blueprint specifications.