Yadda ake yin maganadisu neodymium

Za mu yi bayanin yaddaNdFeB maganadisuana yin su tare da bayanin mai sauƙi.Neodymium maganadisu ne na dindindin maganadisu da aka yi daga gami na neodymium, baƙin ƙarfe, da boron don samar da tsarin Nd2Fe14B tetragonal crystalline.Sintered neodymium maganadiso ana yin su ne ta hanyar dumama ɓangarorin ƙarfe da ba kasafai ba a matsayin albarkatun ƙasa a cikin tanderu.Bayan samun albarkatun kasa, za mu aiwatar da matakai 9 don yin maganadisu NdFeB kuma a ƙarshe samar da samfuran da aka gama.

Shirya kayan don amsawa, narkewa, niƙa, latsawa, sintering, machining, plating, magnetization da dubawa.

Shirya kayan don amsawa

Siffar sinadari na neodymium maganadisu shine Nd2Fe14B.

Magnets yawanci Nd da B suna da wadatar, kuma ƙãrewar maganadisu yawanci suna ƙunshe da wuraren da ba na maganadisu ba na Nd da B a cikin hatsi, waɗanda ke ɗauke da magnetic Nd2Fe14B sosai.hatsi.Za'a iya ƙara wasu abubuwa da ba kasafai ba a duniya don maye gurbin neodymium: dysprosium, terbium, gadolinium, holmium, lanthanum, da cerium.Copper, cobalt, aluminum, gallium da niobium za a iya ƙara don inganta wasu kaddarorin maganadisu.An saba amfani da duka Co da Dy tare.Duk abubuwan da za a kera maganadisu na darajojin da aka zaɓa ana sanya su a cikin tanderun shigar da injin, mai zafi da narke don samar da kayan gami.

Narkewa

Ana buƙatar narkar da albarkatun ƙasa a cikin tanderun shigar da injin don samar da gami da Nd2Fe14B.Samfurin yana zafi ta hanyar ƙirƙirar vortex, duk yana ƙarƙashin injin don hana kamuwa da cuta daga shigar da martani.Samfurin ƙarshe na wannan matakin shine simintin simintin simintin ƙulli (SC sheet) wanda ya ƙunshi nau'ikan lu'ulu'u na Nd2Fe14B.Ana buƙatar aiwatar da tsarin narkewa cikin ɗan ƙanƙanin lokaci don guje wa wuce kima da iskar shaka na ƙananan karafa na duniya.

Milling

Ana amfani da tsarin niƙa mataki 2 a aikin masana'antu.Mataki na farko, wanda ake kira hydrogen detonation, ya ƙunshi halayen da ke tsakanin hydrogen da neodymium tare da gami, karya flakes na SC zuwa ƙananan barbashi.Mataki na biyu, wanda ake kira jet milling, yana juya ɓangarorin Nd2Fe14B zuwa ƙananan barbashi, jere a diamita daga 2-5μm.Niƙan jet yana rage abin da aka samu zuwa foda mai ƙananan girman barbashi.Matsakaicin girman barbashi yana kusa da 3 microns.

Latsawa

Ana danna foda NdFeB a cikin wani m a cikin siffar da ake so a cikin filin maganadisu mai karfi.Ƙarfin da aka matsa zai samu kuma ya kula da yanayin da aka fi so.A wata dabara da ake kira mutu-upsetting, ana matse foda a cikin wani abu mai ƙarfi a cikin mutuwa a kusan 725°C.Daga nan sai a sanya daskararrun a cikin wani nau'i na biyu, inda aka matsa shi zuwa wani siffa mai fadi, kusan rabin tsayinsa na asali.Wannan yana sanya shugabanci na magnetization wanda aka fi so yayi daidai da alkiblar extrusion.Ga wasu siffofi, akwai hanyoyin da suka haɗa da ƙugiya waɗanda ke haifar da filin maganadisu yayin latsa don daidaita sassan.

Tsayawa

Abubuwan daskararrun NdFeB da aka latsa suna buƙatar a haɗa su don samar da tubalan NdFeB.Abun yana matsawa a yanayin zafi mai zafi (har zuwa 1080 ° C) ƙasa da wurin narkewar kayan har sai barbashinsa suna manne da juna.Tsarin sintiri ya ƙunshi matakai 3: dehydrogenation, sintering da tempering.

Machining

An yanke maɗauran maganadisu zuwa sifofi da girman da ake so ta amfani da tsarin niƙa.Mafi ƙanƙanta, hadaddun sifofi da ake kira sifofin da ba na ka'ida ba ana yin su ta hanyar injin fitarwa na lantarki (EDM).Saboda tsadar kayan abu, asarar kayan abu saboda mashin ɗin ana kiyaye shi zuwa ƙarami.Fasahar Huizhou Fullzen tana da kyau sosai wajen kera maganadisu marasa tsari.

Plating/Shafi

NdFeB mara rufi yana da lalata sosai kuma yana rasa maganadisu da sauri lokacin jika.Don haka, duk nau'ikan maganadisu neodymium na kasuwanci suna buƙatar sutura.Kowane maganadiso ana plated a cikin uku yadudduka: nickel, jan karfe da nickel.Don ƙarin nau'ikan sutura, da fatan za a danna "Sambaye Mu".

Magnetization

Ana sanya maganadisu a cikin na'urar da ke nuna magnet zuwa filin maganadisu mai ƙarfi na ɗan gajeren lokaci.Ainihin babban naɗa ne wanda aka naɗe da maganadisu.Magnetized na'urorin amfani da capacitor bankuna da kuma high voltages don samun irin wannan karfi halin yanzu a cikin kankanin lokaci.

Dubawa

Bincika ingancin abubuwan maganadisu don halaye daban-daban.Ma'auni na dijital yana tabbatar da girma.Tsarin auna kauri mai rufi ta amfani da fasahar kyalli ta X-ray suna tabbatar da kauri na sutura.Gwaji na yau da kullun a cikin gwajin feshin gishiri da gwajin dafa abinci shima yana tabbatar da aikin rufin.Taswirar hysteresis tana auna madaidaicin BH na maganadisu, yana mai tabbatar da cewa sun cika magnetized, kamar yadda ake tsammani ga ajin maganadisu.

A ƙarshe mun sami ingantaccen samfurin maganadisu.