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SmCo Magnets (Samarium-Cobalt Magnets)
Product Information on SmCo Magnets
Further Information on Permanent Magnets
Samarium cobalt is a powdered metal which is compacted when it is near a magnetic field and then sintered. Sintered means that when a compacted powder magnet is exposed to heat treat operation, the full density and magnetic orientation can be attained.
SmCo magnets have also a very strong magnetic field. They tend to resist demagnetization extremely well. Unlike Neodymium magnets, it is also very corrosion resistant. SmCo magnets can operate at higher temperatures up to 300°C and are widely used in applications in which higher operating temperature and higher corrosion and oxidation resistance are crucial. The temperature coefficient of remanence is usually less than ±0.05%.
Two common compositions of SmCo magnets are SmCo5 and Sm 2Co17. They can be sintered and bonded. Generally, the cost of SmCo magnets is higher than NdFeB magnets. But NdFeB magnets are stronger than SmCo magnets.
Production Flow Diagram of Samarium Cobalt (SmCo) Magnets
| Rare-earth oxides | metals | metals | ||||
| ê | ê | ê | ||||
| Reduction (Calcium added) | melting | |||||
| î | í | |||||
| Alloy | ||||||
| ê | ||||||
| Breaking | ||||||
| ê | ||||||
| Premilling | ||||||
| ê | ||||||
| Mixing | ||||||
| ê | ||||||
| Milling | ||||||
| í | î | |||||
| Stranghening | ||||||
| ê | Pressing in Magnetic Field | |||||
| Isostatic Pressing | ||||||
| î í | ||||||
| Sintering | ||||||
| ê | ||||||
| Grinding / Wire Cut | ||||||
| ê | ||||||
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Surface Treatment |
è | ê | ||||
| ê | ||||||
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Assembling in System |
è | ê | ||||
| Finishing Surface Cleaning |
ç | Coating, Marking, Magnetising |
|
|||
| ê | í | |||||
| Final Inspection | ||||||
| ê | ||||||
| Final Product | ||||||
Further Information on Permanent Magnets
Also known as Bonded Samarium Cobalt, Sintered SmCo Magnet, Bonded SmCo,
samarium cobalt magnet, samarium cobalt, Ceramic magnets, Sintered Samarium
Cobalt, Ceramic Magnets Wholesale, Samarium Cobalt, samarium cobalt magnets