SU502960A1 - Method of heat treatment of permanent magnets - Google Patents
Method of heat treatment of permanent magnetsInfo
- Publication number
- SU502960A1 SU502960A1 SU2028580A SU2028580A SU502960A1 SU 502960 A1 SU502960 A1 SU 502960A1 SU 2028580 A SU2028580 A SU 2028580A SU 2028580 A SU2028580 A SU 2028580A SU 502960 A1 SU502960 A1 SU 502960A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- permanent magnets
- heat treatment
- low
- temperature processing
- cooling
- Prior art date
Links
Landscapes
- Hard Magnetic Materials (AREA)
Description
1one
Изобретение относитс к области металлургии , в частности к производству и термической обработке посто нных магнитов. The invention relates to the field of metallurgy, in particular to the production and heat treatment of permanent magnets.
Известен способ термической обработки посто нных магнитов, включающий нагрев до однофазного состо ни (закалку с температуры 1300°С), термомагнитную обработку при 800°С в течение 10-15 мин, охлаждение от 800°С до 600-500°С со скоростью не более 10-15°С/мин в магнитном поле, низкотемпературную обработку в интервале 700-500°С и многоступенчатое охлаждение.A known method of heat treatment of permanent magnets, including heating to a single-phase state (quenching from a temperature of 1300 ° C), thermomagnetic treatment at 800 ° C for 10-15 minutes, cooling from 800 ° C to 600-500 ° C at a rate not more than 10-15 ° C / min in a magnetic field, low-temperature processing in the range of 700-500 ° C and multi-stage cooling.
Известный способ, обеспечива высокие магнитные свойства посто нных магнитов, трудоемок, продолжительность обработки составл ет 50-100 часов.The known method, which provides high magnetic properties of permanent magnets, is laborious, the processing time is 50-100 hours.
Предложенный способ отличаетс от известного тем, что низкотемпературную обработку провод т непрерывно со скоростью охлаждени не более 0,7°С/мин, что приводит к увеличению производительпости труда при сохранении высоких магнитных свойств.The proposed method differs from the well-known fact that low-temperature processing is carried out continuously with a cooling rate of not more than 0.7 ° C / min, which leads to an increase in the productivity of labor while maintaining high magnetic properties.
Предложенный способ включает следующие операции: закалка от температуры 1250°С, изотермическа термомагнитна обработка при температуре 800°С в течение 10 минут. Охлаждение от 680-700°С до 400-500°С в течение 5-6 часов со скоростью не более 0,7°С/мин без магнитного пол , далее - с печью.The proposed method includes the following operations: quenching from a temperature of 1250 ° C, isothermal thermomagnetic processing at a temperature of 800 ° C for 10 minutes. Cooling from 680-700 ° C to 400-500 ° C for 5-6 hours at a speed of not more than 0.7 ° C / min without a magnetic field, then with a furnace.
Магниты из сплава ЮНДК и ЮНДКТ, обработанные по предложенному способу, имеют следующие свойства: Остаточна индукци ,The UNDK and JDCTA alloy magnets, processed according to the proposed method, have the following properties: Residual induction,
гаусс10500-11500gauss10500-11500
Коэрцитивна сила, эрстед1450-1650 Максимальна магнитна энерги , млн. гаусс , эрстед .9,5-11,5Coercive force, oersted1450-1650 Maximum magnetic energy, million gauss, oersted .9.5-11.5
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2028580A SU502960A1 (en) | 1974-05-29 | 1974-05-29 | Method of heat treatment of permanent magnets |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2028580A SU502960A1 (en) | 1974-05-29 | 1974-05-29 | Method of heat treatment of permanent magnets |
Publications (1)
Publication Number | Publication Date |
---|---|
SU502960A1 true SU502960A1 (en) | 1976-02-15 |
Family
ID=20585972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU2028580A SU502960A1 (en) | 1974-05-29 | 1974-05-29 | Method of heat treatment of permanent magnets |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU502960A1 (en) |
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1974
- 1974-05-29 SU SU2028580A patent/SU502960A1/en active
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