China Supplier Stainless Steel And Magnet Drive Magnetic Shaft Coupling For Motor Pump
Product Paramenters
The components of samarium and cobalt?
Raw Material Ratio | Energy Density | ReversibleTemp.coefficient | |
SmCo5 | Sm:Co=1:5 | 25MGOe | - 0.05% / ℃ |
Sm2Co17 | Sm:Co=2:17 | 32 MGOe | - 0.03% / ℃. |
Sm | 23-28% |
Co | 48-52% |
Fe | 14-17% |
Cu | 5-7% |
Zr | 2-3% |
SmCo Series 1:5
SmCo Series 1:5 has one atom of rare earth samarium and five atoms of cobalt. By weight this magnet alloy will typically contain 36% samarium with the balance cobalt. SmCo magnets generally have a reversible temperature coefficient of -0.05%. The maximum working temperature is about 350 ℃.
SmCo Series 2:17
SmCo Series 2:17 are age-hardened with a composition of two atoms of rare-earth samarium and 13-17 atoms of transition metals(TM).
The TM content is rich in cobalt, but contains other elements such as iron and copper.
Other elements like zirconium, hafnium, and such may be added in small quantities to achieve better heat treatment. By weight, the alloy
will generally contain 25% of samarium. The maximum energy of these alloys ranges from 24 to 30 MGOe. SmCo magnets generally have
a reversible temperature coefficient of -0.03% ℃. The maximum working temprature is 350℃
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