English
The coercivity of magnetic steel is slightly lower (36 ~ 160kA / M), and the remanence density of ferrite permanent magnet is low (0.2 ~ 0.44t). The above situation limits its wide application in motor. Up to 1960s-1980s, rare earth cobalt permanent magnet and NdFeB permanent magnet (both known as rare earth permanent magnet) came out in the industry one after another. High remanence density, high magnetic energy product, linear demagnetization curve and other excellent performance, especially suitable for motor manufacturing, make the development of permanent magnet motor into a new stage.Spanish
La fuerza coercitiva del acero magnético es ligeramente menor (36 ~ 160 Ka / M) y la densidad de remanencia del imán permanente de ferrita es menor (0,2 ~ 0,44 t).La situación anterior limita su amplia aplicación en el motor.Hasta la década de 1960 - 1980, los imanes permanentes de cobalto de tierras raras y los imanes permanentes de hierro y boro de neodimio (también llamados imanes permanentes de tierras raras) aparecieron sucesivamente en la industria.La alta densidad de remanencia, el alto producto de energía magnética y la curva lineal de demagnetización son especialmente adecuados para la fabricación de motores, lo que hace que el desarrollo de pmsm entre en una nueva etapa.
English translation Chinese | English translation traditional Chinese | English translation Japanese language | English translation Korean | English translation French | English translation Spanish | English translation Thai | English translation Arabic | English translation Russian | English translation Portuguese | English translation German | English translation Italian | English translation Greek | English translation Dutch | English translation Polish | English translation Bulgarian | English translation Estonian | English translation Danish | English translation Finnish | English translation Czech | English translation Romanian | English translation Slovenian | English translation Swedish | English translation Hungarian | English translation Vietnamese |