Can Sintered Samarium Cobalt Magnets Be Used in Magnetic Pumps?

Mar 15, 2023|

The sintered samarium cobalt magnet is mainly composed of rare earth metal samarium and strategic metal cobalt, which is smelted into an alloy with iron, copper, zirconium, praseodymium and other metal materials, and is a magnetic material made after crushing, pressing, sintering and aging , with high magnetic properties (high magnetic energy product, high coercive force, high remanence).

Sintered samarium cobalt magnets also have extremely low temperature coefficient (-0.030%/°C), high operating temperature (operating temperature is 350°C), and unlimited negative temperature. When the operating temperature is above 180°C, its magnetic energy product, Temperature stability and chemical stability are superior to NdFeB materials, so sintered SmCo magnets can be used in magnetic pumps.

Application of sintered samarium cobalt magnet in magnetic pump:

The magnetic pump is a kind of mist leakage fluid conveying machine without dynamic seal. It is mainly designed for the centrifugal pump in the vane pump. There is a rotating magnetic field outside the sealed cavity, and through the action of the magnetic field, the magnetic rotor components inside the sealed cavity are driven to rotate synchronously, while the rotor components inside the sealed cavity The impeller is driven to perform work on the fluid. Magnet manufacturers believe that since the rotating shaft composed of stator components does not pass through the shielding sealing body, the magnetic pump has zero leakage and no pollution.

Samarium cobalt magnets are widely used in magnetic pumps due to their stable magnetic energy product and excellent performance at high operating temperature (350°C).


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