Some Of The Shapes Of Neodymium Disc Magnet
-
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. 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.
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 N52 Rare Earth Magnets suppliers manufacturer, We will offer the best service for every customer.