Sintered Samarium Cobalt magnetic materials

Sintered Samarium Cobalt Arc Segment Magnets Item NO.  MPCO-SCS series
Material: Samarium Cobalt
Shape: segment, arc, tile
Grade:Smco5,Sm2Co17 etc.
Magnetic properties:Hcj,Hcb,BH,Br,BHmax,working temperature.
Application:widely used in sensor,speakers,reed switches,motor,rotor,wind turbines/generators,AC/DC motors,drive motors,servo motors etc.

Magnetization directions:by Axial or by radial.

Sintered Samarium Cobalt magnetic materials, unlike common commercial materials that have ASTM classifications, are difficult to manufacture and fabricate and present a special set of challenges. Therefore, the design team must take special care when creating a custom solution for your application. Common design challenges with SmCo Magnetic Materials include:
Are typically environmentally unstable (highly reactive and prone to oxidation). Common coating and plating solutions usually do not translate to magnetic alloy.
Will gain or lose magnetic field relative to the operational temperature fluctuations necessitating the need to design for magnetic performance through a temperature spectrum.
Can experience irreparable harm at extreme temperature exposures. This harm is irrecoverable and represents an effective partial or total demagnetization of the magnet.
Challenging to fabricate because conventional machine tools and machining methods are not feasible.
Challenging to design because the magnetic field density and resulting force are not linear relative to distance.

Samarium Cobalt Arc Magnet

High Resistivity Arc Samarium Magnets Item NO.  MPCO-SCS series
Material: Samarium Cobalt
Shape: segment, arc, tile
Grade:Smco5,Sm2Co17 etc.
Magnetic properties:Hcj,Hcb,BH,Br,BHmax,working temperature.
Application:widely used in sensor,speakers,reed switches,motor,rotor,wind turbines/generators,AC/DC motors,drive motors,servo motors etc.
Magnetization directions:by Axial or by radial.

The SmCo Magnet is a high performance, low temperature coefficient permanent magnet made of samarium and cobalt and other rare-earth elements. Its biggest advantage is its high working temperature—350℃,It needn’t to be coated because it is difficult to be eroded and oxidized. SmCo magnet is widely used in motors, watch, transducers , instruments, positional detector, generators, radar and other applications.

SmCo Segment finds application in automotive, aerospace, sensors making, and military sectors. It is greatly admired for having compatibility with all types of adverse conditions in terms of temperature and space limitations. This magnetic segment is known to have ability to bear as high as 350 degrees temperature and cryogenic conditions as well. SmCo Segment is made having precise amounts of samarium and cobalt. It has exceptional water resistant properties as it does not get corrode with H2O. arc sintered smco magnets

Sintered SmCo High Performance Arc Magnets

High Performance Arc Sintered SmCo Magnets Item NO.  MPCO-SCS series
Material: Samarium Cobalt
Shape: segment, arc, tile
Grade:Smco5,Sm2Co17 etc.
Magnetic properties:Hcj,Hcb,BH,Br,BHmax,working temperature.
Application:widely used in sensor,speakers,reed switches,motor,rotor,wind turbines/generators,AC/DC motors,drive motors,servo motors etc.

Magnetization directions:by Axial or by radial.

Sintered SmCo magnets, i.e. Sintered samarium cobalt magnets, are those permanent magnetic materials that based on a hexagonal crystal structure (1:5 type SmCo magnets) or a rhombohedral crystal structure (2:17 type SmCo magnets), and they are manufactured through a powder metallurgy process. They contain two basic elements samarium and cobalt. The samarium element can be substituted by a portion of other rare earth elements including praseodymium (Pr), cerium (Ce), gadolinium (Gd), erbium (Er), etc. the cobalt element can be substituted by a portion of iron (Fe) element to increase the magnets’ saturation magnetization (Ms). in order to control the microstructure and the microchemistry so as to meet required performance, it is also critical to add a small portion of copper (Cu), zirconium (Zr), titanium (Ti), etc.

Rare Earth SmCo Sgment Arc Motor Magnets

Rare Earth SmCo Sgment Magnets Item NO.  MPCO-SCS series
Material: Samarium Cobalt
Shape: segment, arc, tile
Grade:Smco5,Sm2Co17 etc.
Magnetic properties:Hcj,Hcb,BH,Br,BHmax,working temperature.
Application:widely used in sensor,speakers,reed switches,motor,rotor,wind turbines/generators,AC/DC motors,drive motors,servo motors etc.
Magnetization directions:by Axial or by radial.

1.Grade: SmCo5 and Sm2Co17.
2.Shape: Disc, Cylinder, Block, Ring, Countersunk, Segment, Trapezoid, Irregular shapes and more. Customized Design (Design proper magnets for clients specific requirements). rare earth disc rod smco magnet

SmCo magnets have better temperature stability. SmCo magnets can be operated at higher temperature up to 300°C, while Nd-Fe-B magnets can not stand temperature over 200°C. Two types of SmCo magnets are SmCo5 and Sm2Co17.
The characteristics of Samarium Cobalt Magnet
*Very high magnetic properties with good stability.
*Superior resistance to high temperature, Curie temperature of majority is over 800°C
*Excellent corrosion resistance capability, no coating is needed for surface protection
Attributes of Samarium Cobalt SmCo Sgment Magnets
*High resistance to demagnetization
*High energy (magnetic strength is strong for its size)
*Good temperature stability
*Expensive material (cobalt is market price sensitive)

Segment Rare Earth SmCo Magnet

Segment Rare Earth SmCo Motor Magnet Item NO.  MPCO-SCS series
Material: Samarium Cobalt
Shape: segment, arc, tile
Grade:Smco5,Sm2Co17 etc.

Magnetic properties:Hcj,Hcb,BH,Br,BHmax,working temperature.
Application:widely used in sensor,speakers,reed switches,motor,rotor,wind turbines/generators,AC/DC motors,drive motors,servo motors etc.

Magnetization directions:by Axial or by radial.

How to reduce eddy current losses of rare earth magnet?
The eddy current loss of rare earth magnet can be reduced by many ways, among them, the material science researchers have proposed to prepare the high-resistivity magnet, such as:
a. Bonded magnet.
b. High-resistivity sintered magnet.

Due to the existence of binder, the electrical resistance of the bonded magnet would be 102 to 104 times more than simple sintered magnet, but the motor power and maximum operating temperate will be limited. For sintered magnet, submicron fluoride will be served as additive to enhance the grain boundary electrical resistance. Fluoride will help magnet to form a high resistivity layer on its grain boundary, thus improve the electrical resistivity of the whole material. rare earth smco sgment magnets, Magnet segmentation technology is a very practical way to make high-resistivity magnet without changing the composition of the magnet. SmCo Motor Magnet
What is magnet segmentation technique?

Multipole Neodymium Ring Magnets

Multipole Neodymium Ring Magnets Technology:
This process consists of combining nanocrystalline base powders, pressing the resulting material, and then baking or sintering the resulting ring to achieve a radially magnetized product. This new technology improves the magnetic flux which in turn provides better efficiency and performance.

Available Dimensions:
O.D I.D Wall Thickness(T) Height(H)
<70mm >15mm 2<T<5mm 25-50mm
Special sizes may be produced depending on the grade, height-to-diameter ratio, and wall thickness.

Applications:
• Actuators
• Magnetic bearings
• Magnetic clutch
• Peripheral motors
• Spindle motors
• Steering control motors
• Servo motors
• Stepper motors
• Synchronous motors
• Linear actuator motors
• Powered tools
• Other new products

Rotor Injected NdFeB Magnet

Multi-pole Plastic Bonded Neo Magnets

Bonded Neo Radial Ring