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What are high temperature Samarium Cobalt (SmCo) Magnets?


Incredibly solid rare earth magnets, Samarium Cobalt magnets (SmCo) are composed of samarium, cobalt as well as iron. Have no idea if you should choose Samarium cobalt or NdFeB magnets for your application?

Production

As a whole, the aspects are melted together and grated into a powder that is dry-pressed to shape in the visibility of an electromagnetic field. The product is after that sintered, matured, ground to dimension, magnetized and also examined. They are called “rare earth” magnets since the components of samarium cobalt are identified thus in the lanthanides area of the Table of elements of the Aspects.

Samarium cobalt magnets

Tolerances

For as-pressed material, tolerance on the thickness (magnetization direction) is ±.005″. Other measurements are ± 2.5% or ±.010″, whichever is higher.
According to International Magnetics Association (IMA) criteria, aesthetic blemishes such as hair-line cracks, porosity and also minor chips are typically discovered in sintered permanent magnets. A chipped edge is considered acceptable if no greater than 10% of the surface is missing. Fractures are acceptable as long as they do not extend across greater than 50% of post surface area.

Magnetizing and packaging

Samarium cobalt magnets are fragile but powerful magnetically. For this reason, it is essential to take care of these magnets with severe care to prevent injury and damage to the magnets. Fingers can be seriously pinched by two magnets attracting to each other. Magnets can chip if enabled to “leap at” another item. It is extremely suggested that when creating rare earth magnetic assemblies, the magnets be magnetized after setting up. These magnets are NOT for kids.

Machining

Because samarium cobalt magnet material is brittle and prone to cracking, it is not suitable for conventional machining approaches. It can, nonetheless, be abrasively ground, yet just with using liberal amounts of coolant. The coolant lessens warmth fracturing and also the threat of fires brought on by oxidized grinding dirt.

Applications Of Samarium Cobalt Magnets

  • Computer disc drives and also sensing units
  • Traveling wave tubes
  • Linear actuators and also satellite systems
  • Motors where temporary stability is vital
applications of smco magnets

Characteristics Of Samarium Cobalt Material

  • High resistance to demagnetization
  • High power (magnetic strength is strong for its dimension).
  • Great to moderately high temperature security.
  • Rates for samarium cobalt is market sensitive.

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Jonah Jin

Jonah Jin
Managing Director

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