NdFeB maginito, amadziwikanso kutineodymium maginito, ali m’gulu la maginito amphamvu kwambiri komanso amene amagwiritsidwa ntchito kwambiri padziko lonse. Amapangidwa kuchokera ku kuphatikiza kwa neodymium, chitsulo, ndi boron, zomwe zimapangitsa mphamvu yamaginito yamphamvu. Komabe, monga maginito wina aliyense, NdFeB maginito atengeke demagnetization. M'nkhaniyi, tikambirana zinthu zazikulu zomwe zimakhudza demagnetization wa NdFeB maginito.
Kutentha ndi chimodzi mwazinthu zazikulu zomwe zingayambitse demagnetization mu maginito a NdFeB. Maginito awa ali ndi apazipita kutentha ntchito, kupitirira kumene amayamba kutaya mphamvu zawo za maginito. Kutentha kwa Curie ndipamene maginito amasintha, zomwe zimapangitsa kuti maginito agwe kwambiri. Kwa maginito a NdFeB, kutentha kwa Curie kuli pafupifupi madigiri 310 Celsius. Chifukwa chake, kugwiritsa ntchito maginito pa kutentha pafupi kapena kupitirira malire awa kungayambitse demagnetization.
Chinthu china chofunika chomwe chimakhudza demagnetization wa NdFeB maginito ndi kunja maginito munda. Kuwonetsa maginito kumalo amphamvu otsutsana ndi maginito kungapangitse kuti magnetization iwonongeke. Chodabwitsa ichi chimadziwika kuti demagnetizing. Mphamvu ndi kutalika kwa gawo lakunja zimagwira ntchito yofunika kwambiri pakuchotsa maginito. Choncho, m'pofunika kusamalira NdFeB maginito mosamala ndi kupewa poyera kuti amphamvu maginito minda kuti akhoza kusokoneza katundu wawo maginito.
Kuwonongeka ndi chinthu chofunikira kwambiri chomwe chingayambitse demagnetization ya maginito a NdFeB. Maginitowa amapangidwa kuchokera kuzitsulo zachitsulo, ndipo ngati akumana ndi chinyezi kapena mankhwala ena, amatha kuwononga. Kuwonongeka kumafooketsa kukhulupirika kwa maginito ndipo kungayambitse kutaya mphamvu yake ya maginito. Pofuna kupewa izi, zokutira monga faifi tambala, zinki, kapena epoxy nthawi zambiri zimagwiritsidwa ntchito kuteteza maginito ku chinyezi ndi zinthu zowononga.
Kupsinjika kwamakina ndi chinthu china chomwe chingayambitse demagnetization mu maginito a NdFeB. Kuthamanga kwambiri kapena kukhudzidwa kungathe kusokoneza kuyanjanitsa kwa madera a maginito mkati mwa maginito, zomwe zimapangitsa kuchepa kwa mphamvu yake ya maginito. Chifukwa chake, ndikofunikira kuti mugwiritse ntchito maginito a NdFeB mosamala kuti musagwiritse ntchito mphamvu mopitilira muyeso kapena kuwapangitsa kukhudzidwa mwadzidzidzi.
Pomaliza, nthawi yokha imathanso kuyambitsa demagnetization pang'onopang'ono mu maginito a NdFeB. Izi zimatchedwa kukalamba. Kwa nthawi yayitali, mphamvu ya maginito ya maginito imatha kuwonongeka chifukwa cha zinthu zosiyanasiyana monga kusinthasintha kwa kutentha, kukhudzana ndi maginito akunja, komanso kupsinjika kwamakina. Kuti muchepetse zotsatira za ukalamba, kuyezetsa pafupipafupi ndikuwunika momwe maginito amagwirira ntchito ndikulimbikitsidwa.
Pomaliza, zinthu zingapo zingakhudze demagnetization wa NdFeB maginito, kuphatikizapo kutentha, kunja maginito minda, dzimbiri, kupanikizika makina, ndi kukalamba. Pomvetsetsa ndikuwongolera zinthu izi, ndizotheka kusunga mphamvu zamaginito za maginito a NdFeB ndikutalikitsa moyo wawo. Kusamalira moyenera, kuwongolera kutentha, ndi chitetezo ku malo owononga ndizofunikira kwambiri pakusunga magwiridwe antchito a maginito.
Nthawi yotumiza: Sep-22-2023