Kuqine kangakanani ukufunxa kwemagnethi eyomeleleyo ye-NdFeB?

Njani kunamandla ukufunxa kwemagnethi eyomeleleyo ye-NdFeB?

NdFeB iimagnethi ngoku zezona magnethi zinamandla asisigxina. NdFeB iimagnethi okwangoku ezona magnethi zifumanekayo kwezorhwebo. Baziwa njengokumkani yemagnetism. Zineempawu eziphezulu kakhulu zemagneti kunye nobuninzi bazo imveliso yamandla kazibuthe (BHmax) ingaphezulu kwamaxesha angama-10 aphezulu kunoko ferrite. Ikwayeyona iqhele ukusetyenziswa kwimagnethi yomhlaba enqabileyo okwangoku, kwaye nayo isetyenziswa kwiindawo ezininzi kunye nezixhobo ezifana nemagnethi yethu eqhelekileyo iimotor, iidisk drives, kunye nemagnethi imaging resonance.

Eyayo ukuchaneka kwakhona kuhle kakhulu. Ubushushu bokusebenza bunokufikelela kwi-200 Izidanga zeCelsius. Ngaphezu koko, ukuthungwa kwayo kunzima, ukusebenza kwayo kuzinzile, kwaye inokusebenza kakuhle kweendleko, ngoko ke ukusetyenziswa kwayo kubanzi kakhulu. Kodwa ngenxa yomsebenzi wayo oqinileyo wekhemikhali, kufuneka iphathwe ngomphezulu ukutyabeka. (Efana neZn, i-Ni plating, i-electrophoresis, i-passivation, njl.).

Eyona inxalenye yemagnethi ye-NdFeB yinto enqabileyo yomhlaba neodymium. Umhlaba onqabileyo awukho ebizwa ngokuba ngumhlaba onqabileyo ngenxa yokuxinwa kwawo okuphantsi, kodwa kunzima kakhulu eyahlukileyo kunezinye izinto ezidityaniswe ngamabhondi ekhemikhali. Nangona i umtsalane kazibuthe NdFeB umazibuthe womelele kakhulu, ide ibe namarhe ukuba Iimagnethi zeNdFeB zinokufunxa amaxesha angama-600 ubunzima babo. Kodwa enyanisweni, oku Ingxelo ayiphelelanga, kuba umtsalane wemagnethi ikwanjalo uchatshazelwa ziimeko ezininzi ezinje ngemilo kunye nomgama. Umzekelo, kuba iimagnethi ezinobukhulu obufanayo, kokukhona imagnethi iphezulu, inamandla amandla omtsalane wemagnethi; kuba iimagnethi ezinobude obufanayo, inkulu i Idayamitha, kokukhona amandla omtsalane amakhulu.