SmCo Magnets, Samarium Cobalt (Sm-Co), Rare Earth SmCo Permanent Magnets
Imagnethi yesamarium-cobalt (SmCo) luhlobo lwemagnethi yomhlaba enqabileyo eyenziwe ngezinto ezimbini ezisisiseko: isamarium kunye necobalt.Iimagnethi ze-SmCo zinqabile iimagnethi zomhlaba ezisisigxina zesizukulwana sesibini.Imagnethi ye-Samarium-cobalt ilinganiswe ngokuthelekiswa nayoiimagnethi ze-neodymiumngokwamandla kodwa babe namazinga aphezulu obushushu kunye nokunyanzeliswa.I-Honsen Magnetics ivelisa iimagnethi ze-SmCo5 kunye ne-Sm2Co17 kwiifom ezahlukeneyo.
I-Sm-Co lolona khetho lukhethwayo kwezona zicelo zemoto zifunwa kakhulu ngenxa yokuchasana kwayo neempembelelo ze-demagnetizing kunye nozinzo olubalaseleyo lobushushu.Ngaphaya koko, uxhathiso lomhlwa lungcono kakhulu kunolo lwe-Nd-Fe-B.Umazibuthe usagqunywe kwiimeko ezineasidi.Ukunganyangeki komhlwa kukwanikeze isiqinisekiso kwabo bacinga ukusebenzisa iimagnethi kwizicelo zonyango.
iPropati yeMagnetic eSisiseko
Elona qondo lobushushu bokusebenza: 250-350°C
Ubuninzi beMveliso yaMandla: (Bhmax) (15-35 MGOe)
Ubushushu obuninzi bokusebenza: (Temp.Tw) 250-350
I-Induction Coercive Force: (Hcb) 4-12(Koe)
I-Residual Magnetism: Br 0.8-1.2(T)
Iqondo lobushushu elibuyiselwayo lilingana nentsalela yemagnethi (Br) -0.04 --- -0.01
Uthotho
Iimagnethi zeSamarium-cobalt ziyafumaneka "kuthotho" ezimbini, ezizezi SmCo5oomazibuthe kunye no-Sm2Co17imagnethi.I-SmCo5 inoluhlu lwemveliso yamandla ye-15-22 MGOe, kunye nochungechunge lwesibini lwemagnethi ye-Samarium Cobalt, i-Sm2Co17, inoluhlu oluphakathi kwe-22 kunye ne-30 MGOe.
Iimbonakalo
I-Demagnetization inzima kakhulu kwi-samarium-cobalt
Iimagnethi ze-SmCo zizinzile ubushushu.
Ziyabiza kwaye zixhomekeke ekutshintsheni kwexabiso (i-cobalt inovakalelo lwexabiso lemarike).
Iimagnethi ze-Samarium-cobalt zine-corrosion ephezulu kunye nokumelana ne-oxidation, azifane zigqunywe kwaye zinokuqashwa.
Iimagnethi zeSamarium-cobalt zibuthathaka kwaye ziqhekeka ngokulula kwaye ziqhekeke.
Iimagnethi ze-Samarium-cobalt eziye zafakwa zibonisa i-magnetic anisotropy, ethintela ulwalathiso lwemagneti ukuya kwi-axis ye-orientation yabo magnetic.Oku kufezwa ngokulungelelanisa ubume bekristale bezinto njengoko benziwa.
Inkqubo yeMveliso yeSamarium Cobalt eziGxina iimagnethi
Inkqubo yomgubo→ Ukucofa→ Ukucofa → Uvavanyo lwepropathi yemagneti → ukusika → iimveliso ezigqityiweyo
Izinto ze-cobalt ze-Samarium zivame ukuqhutyelwa phantsi kweemeko ezingenazibuthe, kunye nevili lokusila idayimane kunye nokugaya okulungileyo okumanzi, okuyimfuneko.Ngenxa yobushushu obuphantsi bokutshisa, i-samarium cobalt akufanele yome ngokupheleleyo.Intlantsi nje encinci okanye umbane ongashukumiyo kwimveliso unokuvusa ngokulula umlilo, ngobushushu obuphezulu kakhulu, ekunzima ukuwulawula.
SmCo Magnets VS Sintered NdFeB Magnets
Oku kulandelayo ngowona mahluko uphambili phakathi kweemagnethi ze-NdFeB kunye neemagnethi ze-SmCo:
1. Amandla emagnethi
Amandla kazibuthe wemagnethi ye-neodymium esisigxina mkhulu kunalowo wemagnethi we-SmCo.I-Sintered NdFeB ine-(BH)Max ukuya kuthi ga kwi-53MGOe, kanti imathiriyeli ye-SmCo ine-(BH)Max ye-32MGOe.Xa kuthelekiswa nezinto eziphathekayo ze-NdFeb, izinto ze-SmCo zingcono ekuxhathiseni ukukhutshwa kweemagneti.
2. Ukumelana nobushushu obuphezulu
Ngokumalunga nokumelana nobushushu obuphezulu, i-NdFeB ayikho ngcono kune-SmCo.I-NdFeB inokumelana namaqondo obushushu ukuya ku-200 °C ngelixa i-SmCo ikwazi ukumelana namaqondo obushushu ukuya kuma-350 °C.
3. Ukumelana nokubola
Iimagnethi ze-NdFeB ziyasokola ukumelana nomhlwa kunye ne-oxidation.Ngokuqhelekileyo, kufuneka zibekwe okanye zifakwe kwi-vacuum ukuze zikhuseleke.Zinc, nickel, epoxy, kunye nezinye izinto zokugquma zisetyenziswa rhoqo.Iimagnethi ezenziwe nge-SmCo aziyi kugqwala
4. Ubume, inkqubo kunye nokudibanisa
Ngenxa yobuthathaka babo, i-NdFeb kunye ne-SmCo ayikwazi ukuveliswa ngokusebenzisa iinkqubo zokusika ezisemgangathweni.Ivili le-diamond kunye ne-wire electrode cutting zimbini iindlela eziphambili zokucubungula.Oku kunciphisa iifom zezi magnethi ezinokuveliswa.Iimilo ezintsonkothileyo kakhulu azinakusetyenziswa.Izinto ze-SmCo zinobunkunkqele kwaye zophuka xa zithelekiswa nezinye izixhobo.Ke ngoko, xa usakha kwaye usebenzisa iimagnethi zeSmCo, nceda ulumke kakhulu.
5. Ixabiso
Iimagnethi ze-SmCo zazibiza ngokuphindwe kabini, ukuba aziphindwe kathathu, njengemagnethi ye-NdFeB kwiminyaka embalwa edlulileyo.Ngenxa yemigaqo-nkqubo ethintelayo yelizwe kwimigodi enqabileyo yomhlaba, ixabiso le-NdFeB linyuke kakhulu kwiminyaka yakutshanje.Ngokwenyani, iimagnethi zeNdFeB eziqhelekileyo zibiza kancinci kunesamarium cobalt.
Usetyenziso
Ixhathisa kakhulu kwi-corrosion kunye ne-oxidation, iimagnethi ezisisigxina ze-SmCo zifumana ukusetyenziswa okubanzi kwimimandla yeenqwelomoya, i-aerospace, ukhuselo lwesizwe, kunye nomkhosi, kunye nokuveliswa kwezinto ze-microwave, izixhobo zonyango, izixhobo kunye nezixhobo, kunye neentlobo ezahlukeneyo. iintlobo zezivamvo zemagnethi, iiprosesa, iimotor, kunye nokunyusa imagnethi.Usetyenziso olufanayo lwemizi-mveliso ye-NdFeB lubandakanya iiswitshi, isandisi-lizwi, iimoto zombane, izixhobo, kunye nezinzwa.
SmCo5 zilula ukulinganisa kwintsimi magnetic ngaphezu SmCo 2:17 series umazibuthe.
In Sm2Co17imagnethi, indlela yokunyanzeliswa isekelwe kwi-pinning yodonga lwesizinda.
