AlNiCo Magnets Muaj zog tiv thaiv kom corrosion
Dab tsi cobalt tas li hlau nplaum?
1:17 cobalt magnet tseem hu ua Sm2Co17. Nws yog tsim los ntawm hlau, cobalt, tooj liab, hlau, zirconium, los ntawm ib qho kev faib ua feem ntawm qhov sib piv, tom qab smelting, crushing, siab, sintering, laus ua ntawm cov khoom sib nqus. Qhov siab tshaj plaws sib nqus zog ntawm txhua qib yog nruab nrab ntawm 20-32 thiab qhov siab kub ua haujlwm yog 350 ℃. Txij li 2:17 tau qis dua coefficient thiab zoo corrosion kuj, sib nqus zog tshaj NdFeB hlau nplaum ntawm siab kub, yog li nws yog Siv dav hauv chaw ua si, chaw ua tub rog, kev kub siab, tsheb sensors, txhua yam kev sib nqus tsav tsheb, sib nqus twj, microwave pab kiag li lawm.
Cobalt hlau nplaum yog lub cim thib ob ntawm lub ntiaj teb tsis tshua muaj hlau nplaum, feem ntau muab faib ua 1: 5 hom (SmCo5) thiab 2:17 hom (Sm2Co17) ob. Nws lub ntsiab nta cov cuab yeej sib nqus, kev kub thiab kub. Qhov siab tshaj plaws kev khiav hauj lwm kub txog li ntawm 250-350 degrees Celsius. Piv nrog NdFeB hlau nplaum, cobalt cobphum yog tsim rau kev ua haujlwm hauv cov chaw kub siab. Heev haum rau lub chaw ua khoom ntawm ntau yam ntawm kev kawm siab magnet tsav thiab lub chaw ua hauj lwm yog ib qhov kev siv heev. Tsis tas li ntawd, cobalt magnet corrosion kuj tsis tshua muaj zog, qhov feem ntau tsis xav tau plating kho. Txij li lub ntsiab Cheebtsam ntawm cobalt magnet nyob rau hauv lub ntiaj teb lub reserves yog tsawg, yog li tus nqi yog kim heev. Txheej Txheem Feem Ntau:
Cov Quav Khoom ----> Nqaij Melting ----> Molding ----> Molding ----> Sintering ----> Kev Tshawb Fawb ----> Kev Ua Lag Luam ---> Tu --- ---> tshuaj ntsuam >>> ntim
Cobalt cov hlau nplaum muaj qhov sib txawv ntawm cov khoom sib nqus thiab cov coercivity siab, nws cov khoom sib nqus zoo dua li AlNiCo mus tas li hlau nplaum, ferrite tas li hlau nplaum, qhov siab tshaj plaws sib nqus zog khoom mus txog 239kJ / m3 (30MGOe), AlNiCo8 lawm ntau zaus 3, Y40) 8 lub sij hawm, yog li SmCo lawm daim npliag magnet ntawm cov khoom me me, lub cev nyhav, kev ruaj khov, yuav siv tau rau cov khoom siv hluav taws xob, cov twj, ntsuas cov ntsuas, gyroscopes, cov xov tooj hluav taws xob, microwave Devices, hlau tshuab, lwm yam sib txawv los yog dynamic hlau nplhaib.
2, cobalt cob phum siab Tshaj kub siab, qhov kub thiab txias yog me me, tuaj yeem siv tau ntawm 300 ℃.
3, cobalt cob phum siab nyuaj, brittleness, dabtsi yog khoov zog, tensile zog thiab compressive zog yog me me, yuav tsum tsis txhob siv ua yam ntxwv yam ntxwv.
4, cobalt cob phum ntev yog qhov tseem ceeb ntawm cov hlau cobphum (Co ≥ 99.95%), yog li tus nqi kim kim.
Cov lus cobalt cobalt tas li daim nplaub tshev daim ntawv thov
1, raws li qhov xav tau los xaiv ntau qhov sib txawv ntawm cov hlau cobphum cobalt. 2, yog tias koj xav tau cobalt cob phav tas mus rau qhov chaw sov siab, koj yuav tsum xav txog ob lub tswv yim sib nqus: tus ntxim siab puag coefficient (piv txwv li αBr) thiab cov kev sib tw ntawm Hcj intrinsic. Lub cub coefficient thim rov qab yog qhov kev ntsuas ntawm qhov kev hloov ntawm cov khoom siv tas mus li ntawm qhov kub. Thaum lub ntsuas kub rov los rau lub sijhawm pib, qhov sib txuam sib luag ntawm cov khoom ntiag tug yuav rov qab rau cov khoom sib nqus pib thaum pib. Tab sis qhov me me qhov kub coefficient, qhov sib nqus cov khoom muaj nqi tsawg. Tib lub sij hawm, nrog cov kev hloov hauv qhov kub, qhov sib nqus cov khoom ntawm cov khoom ntiag tug ntawm cov khoom ntiag tug tseem muaj kev pauv hloov tsis tau, uas hu ua kev tsis tau ua lag luam. Qhov siab tshaj qhov tseem ceeb ntawm coercivity, qhov tsawg dua ntawm qhov ua tsis taus lawm. 3, cobalt cob phum nyob rau hauv daim ntawv thov tsim kuj yuav tsum xav txog qhov loj ntawm cov qauv tsim cov hlau nplaum tas li. Feem ntau, txij thaum lub nkuaj ntawm cov ciaj ciam tawg ntawm SmCo tas li yuav tsum tau ncaj qha, thiab qhov chaw seem magnetic induction intensity Br thiab lub zog quab yuam Hcb txawv ntau, qhov kev khiav hauj lwm kis (Pc tus nqi) yuav tsum tau xaiv nyob ze ntawm lub siab tshaj plaws sib nqus zog yam khoom ua tau kom siv tag nrho cov sib nqus zog, ntawm qhov tod tes yuav txuag tau cov nqi. Tsim siv: 0.5≤Pc≤1.4, cobalt cob phum ntev yog cov khoom siv tes dej num, yuav tsum tsis raug tsim los ua qhov sib luag, thiab yog li ntawd yuav tsum tsis txhob muaj qhov kev cai loj tib yam nrog cov khoom seem. 5, cobalt mus tas li hlau nplaum muaj ib qho kev sib zog ua kom muaj zog, uas tsis tas yuav kho kev kho mob.