Izinto zikazibuthe zingahlukaniswa zibe izigaba ezimbili: omazibuthe be-isotropic kanye nozibuthe be-anisotropic:
Ozibuthe be-Isotropic babonisa izinto ezifanayo kazibuthe kuzo zonke izinhlangothi futhi bangenziwa uzibuthe kunoma iyiphi indlela.
Ozibuthe be-Anisotropic babonisa izici ezihlukene kazibuthe ezindaweni ezihlukene, futhi banendlela ekhethwayo yokusebenza kahle kazibuthe, eyaziwa ngokuthi isiqondiso sokuma.
Ozibuthe be-anisotropic abavamile bahlanganisasintered NdFeBfuthisintered SmCo, okuyizinto zombili eziqinile kazibuthe.
I-Orientation iyinqubo ebalulekile ekukhiqizeni omazibuthe be-NdFeB
I-magnetism kazibuthe ivela ku-oda kazibuthe (lapho izizinda kazibuthe ngazinye ziqondana endaweni ethile).I-Sintered NdFeB yakhiwa ngokucindezela impushana kazibuthe ngaphakathi kwesikhunta.Inqubo ihilela ukubeka impushana kazibuthe esikhunjeni, ukusebenzisa inkambu kazibuthe enamandla usebenzisa uzibuthe kagesi, futhi ngesikhathi esifanayo ucindezela ngomshini wokunyathelisa ukuze uqondanise i-axis yamagnetization elula yempushana.Ngemuva kokucindezela, imizimba eluhlaza ikhishwa ngozibuthe, isuswe esikhunjeni, bese kutholakala izikhala eziwumphumela ezinezikhombisi-ndlela eziqondiswe kahle zikazibuthe.Lezi zikhala zibe sezisikwa zibe izilinganiso ezithile ukuze kwakhiwe imikhiqizo yokugcina yensimbi kazibuthe ngokwezidingo zamakhasimende.
I-Powder orientation kuyinqubo ebalulekile ekukhiqizeni omazibuthe be-NdFeB abasebenza ngokuphezulu.Izinga lokuma phakathi nesigaba sokukhiqiza esingenalutho lithonywa izici ezihlukahlukene, okuhlanganisa amandla enkambu yokuma, umumo wezinhlayiyana zempushana nosayizi, indlela yokubumba, umumo ohlobene wenkundla yokuma nokwakheka kwengcindezi, kanye nokuminyana okuxekethile kwempushana eqondiwe.
I-skew kazibuthe ekhiqizwa esigabeni sangemuva kokucubungula inomthelela othile ekusabalaliseni kwenkundla kazibuthe.
I-Magnetization iyisinyathelo sokugcina sokudlulisela amandla kazibuthesintered NdFeB.
Ngemva kokusika izikhala kazibuthe zibe ubukhulu obufunekayo, zenza izinqubo ezifana ne-electroplating ukuvimbela ukugqwala futhi zibe omazibuthe bokugcina.Kodwa-ke, kulesi sigaba, izibuthe azibonisi i-magnetism yangaphandle futhi zidinga i-magnetization ngenqubo eyaziwa ngokuthi "i-magnetism yokushaja."
Imishini esetshenziselwa ukuzibuthe ibizwa ngokuthi i-magnetizer, noma umshini ozibuthe.I-magnetizer iqala ngokushaja i-capacitor enamandla kagesi e-DC (okungukuthi, igcina amandla), bese iwakhipha ngekhoyili (i-magnetizing fixture) enokumelana okuphansi kakhulu.Isilinganiso esiphezulu sokushaya kwenhliziyo singaba phezulu kakhulu, sifinyelele amashumi ezinkulungwane zama-ampere.Lokhu kushaya kwenhliziyo kwamanje kukhiqiza insimu enamandla kazibuthe ngaphakathi kwe-magnetizing fixture, eyenza unomphela uzibuthe obekwe ngaphakathi.
Izingozi zingenzeka ngesikhathi senqubo kazibuthe, njengokugcwala okungaphelele, ukuqhekeka kwezigxobo zikazibuthe, nokuphuka kwezibuthe.
Ukugcwala okungaphelele kubangelwa ikakhulukazi i-voltage yokushaja enganele, lapho inkambu kazibuthe ekhiqizwe ikhoyili ingafinyeleli izikhathi ezingu-1.5 kuya kwezingu-2 ku-saturation magnetization kazibuthe.
Ukuze uthole i-multipole magnetization, omagnethi abanezikhombisi-ndlela zokuma okuminyene nabo bayinselele ukugcwala ngokugcwele.Lokhu kungenxa yokuthi ibanga eliphakathi kwezigxobo ezingenhla neziphansi ze-magnetizer likhulu kakhulu, okuholela ekungeneni kwamandla kazibuthe avela ezigxotsheni ukuze kwakheke isifunda kazibuthe esivaliwe esifanele.Ngenxa yalokho, inqubo kazibuthe ingaholela izigxobo kazibuthe ezingahlelekile namandla ensimini enganele.
Ukuqhekeka kwezigxobo ze-magnetizer kubangelwa ngokuyinhloko ukubeka i-voltage ephezulu kakhulu, ukweqa umkhawulo ophephile wamandla kagesi womshini ozibuthe.
Ozibuthe abangagcwalisiwe noma omazibuthe abakhishwe ngozibuthe ngokwengxenye kunzima kakhulu ukugcwala ngenxa yezizinda zabo kazibuthe zasekuqaleni eziphazamisekile.Ukuze kuzuzwe ukugcwaliswa kwesikhala, ukumelana nokususwa kanye nokuzungezisa lezi zizinda kudinga ukunqotshwa.Kodwa-ke, ezimeni lapho uzibuthe ungagcwali ngokugcwele noma unozibuthe osalayo, kunezifunda zenkundla kazibuthe ehlehlayo ngaphakathi kuyo.Ukuthi idonsa uzibuthe iya phambili noma ibheke emuva, ezinye izindawo zidinga ukuhlehla kazibuthe, okwenza kudingeke ukuthi kunqotshwe amandla okuphoqa angaphakathi kulezi zifunda.Ngakho-ke, inkambu kazibuthe enamandla kunaleyo edingekayo ngokwethiyori iyadingeka kumagnetization.
Isikhathi sokuthumela: Aug-18-2023