FIELD: electrical engineering.
SUBSTANCE: invention relates to electrical engineering and can be used for stabilisation of magnetic properties of magnets of type Sm-Co-Fe-Cu-Zr by partial demagnetisation. Method of partial demagnetisation of nanoheterogeneous high-coercivity magnets of type Sm-Co-Fe-Cu-Zr involves their heating in an inert medium. Prior to heating poles of magnet are closed with a magnetic circuit. Heating magnetised magnet till saturation is carried out to working temperature in range of 875-1,025 K. Cooling from working temperature to 675 K is performed at a rate of 1 K/min.
EFFECT: technical result consists in improvement of accuracy and stability of operation of navigation equipment and aircraft automation systems.
1 cl, 3 tbl
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| METHOD FOR OBTAINING HIGH-COERCIVITY MAGNETS FROM ALLOYS ON BASIS OF Nd-Fe-B | 2011 |
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| METHOD OF MATERIAL MANUFACTURING FOR PERMANENT MAGNETS OUT OF CAST ALLOYS BASED ON SYSTEM Sm-Co-Fe-Cu-Zr | 2014 |
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| NANO-COMPOSITE MAGNET AND ITS MANUFACTURING PROCESS | 2003 |
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RU2367045C2 |
