Neodymium hlau boron
Kev thov ntawm NdFeB hlau nplaum tau loj hlob sai hauv kev lag luam thoob ntiaj teb xws li cov ntaub ntawv thev naus laus zis, Motors, cov cuab yeej kho mob thiab lwm yam.Neodymium hlau nplaum tau siv dav hauv cov haujlwm hauv qab no: Chaw Ua Haujlwm Automation - Cov khoos phis tawj ntawm tus kheej, cov tshuab luam ntawv, tshuab luam ntawv hluav taws xob - Flywheels, Cua fais fab chaw nres tsheb Science thiab tshawb fawb - ESR (electron spin resonance), Sib nqus levitation, Photon tiam tshuaj - kho hniav cov ntaub ntawv, Imaging Industry - Industrial robots, FA (lub Hoobkas automation), - TV, DVD (digital video disc). Kev thauj mus los - Cov motors me, Sensors, Tsheb, EV ( tsheb fais fab, tsheb hybrid) Kev sib txuas lus - mobiles kev sib txuas lus, PHS (tus kheej handy-phone system) Kev kho mob: MRI, khoom kho mob. Kev Siv Txhua Hnub - Cov cuab yeej sib nqus, cov khoom siv hlau nplaum rau lub hnab thiab cov hniav nyiaj hniav kub, Daim ntawv thov khoom ua si.
| Khoom npe | Neodymium Magnet, NdFeB Magnet | |
| Khoom siv | Neodymium hlau boron | |
|
Qib & Ua haujlwm kub | Qib | Ua haujlwm kub |
| N30-N55 | +80 ℃ | |
| N30M-N52 | +100 ℃ | |
| N30H-N52H | + 120 ℃ | |
| N30SH-N50SH | +150 ℃ | |
| N25UH-N50U | +180 ℃ | |
| N28EH-N48EH | +200 ℃ | |
| N28AH-N45AH | + 220 ℃ | |
| Cov duab | Disc, Lub tog raj kheej, Thaiv, Nplhaib, Countersunk, Ntu, Trapezoid thiab Irregular shapes thiab ntau dua. Customized shapes muaj | |
| Txheej | Ni, Zn, Au, Ag, Epoxy, Passivated, thiab lwm yam. | |
| Daim ntawv thov | Sensors, motors, lim tsheb, sib nqus tuav, hais lus nrov, cua tshuab hluav taws xob, khoom siv kho mob, thiab lwm yam. | |
Ferrite / Ceramic
Txheej txheem cej luam:
Cov hlau nplaum ruaj khov ferrite, tseem hu ua cov hlau nplaum tawv, yog cov khoom siv hlau nplaum uas tsis yog xim hlau.In 1930, Kato thiab Wujing nrhiav tau ib hom spinel (MgA12O4) cov hlau nplaum ruaj khov, uas yog cov qauv ntawm ferrite dav siv niaj hnub no. Ferrite hlau nplaum feem ntau yog tsim. SrO los yog Bao thiab Fe2O3 ua raw khoom los ntawm cov txheej txheem ceramic (pre firing, crushing, pulverizing, pressing, sintering thiab sib tsoo). Nws muaj cov yam ntxwv ntawm dav hysteresis voj, siab coercive quab yuam thiab siab remanence. Nws yog ib yam khoom siv ua haujlwm uas tuaj yeem khaws cov hlau nplaum tas li ib zaug magnetized. Nws qhov ceev yog 4.8g / cm3. Raws li cov txheej txheem ntau lawm, ferrite hlau nplaum tuaj yeem muab faib ua ob hom: sintering thiab bonding. Sintering tuaj yeem muab faib ua kom qhuav thiab ntub nias, thiab kev sib txuas tuaj yeem muab faib ua extrusion, compression thiab txhaj tshuaj molding. Cov mos mos, elastic thiab twisted hlau nplaum ua los ntawm bonded ferrite hmoov thiab hluavtaws roj hmab kuj hu ua roj hmab hlau nplaum. Raws li seb cov hlau nplaum sab nraud yog siv los yog tsis, nws tuaj yeem muab faib ua isotropic ruaj khov hlau nplaum thiab anisotropic ruaj khov hlau nplaum.
Sib piv nrog lwm cov khoom sib nqus
Qhov zoo: Tus nqi qis, qhov dav ntawm cov khoom siv raw, kub tsis kam (txog 250 ℃) thiab corrosion kuj.
Qhov tsis zoo: Piv nrog NdFeB cov khoom, nws cov remanence tsawg heev. Tsis tas li ntawd, vim yog cov qauv xoob thiab tsis yooj yim ntawm nws cov khoom siv tsawg, ntau txoj kev ua haujlwm raug txwv los ntawm nws, xws li xuas nrig ntaus, khawb, thiab lwm yam., feem ntau ntawm nws cov khoom zoo tuaj yeem tsuas yog nias los ntawm pwm, cov khoom. kam rau ua qhov tseeb yog qhov tsis zoo, thiab tus nqi pwm yog siab.
Txheej: Vim nws zoo heev corrosion kuj, nws tsis xav tau txheej tiv thaiv.
Samarium cobalt
Samarium cobalt hlau nplaum yog ib hom hlau nplaum uas tsis tshua muaj hauv ntiaj teb. Nws yog ib hom khoom siv hlau nplaum ua los ntawm samarium, cobalt thiab lwm yam hlau tsis tshua muaj hauv ntiaj teb cov ntaub ntawv los ntawm kev faib ua feem, melting rau hauv alloy, crushing, nias thiab sintering. Nws muaj cov khoom siv hluav taws xob sib nqus siab thiab tsis tshua muaj kub coefficient. Qhov siab tshaj plaws ua haujlwm kub tuaj yeem ncav cuag 350 ℃, thiab qhov kub tsis zoo yog txwv tsis pub. Thaum ua haujlwm kub siab tshaj 180 ℃, nws cov khoom siv hluav taws xob sib nqus siab tshaj plaws (BHmax) thiab coercivity (co Qhov kub thiab txias stability thiab tshuaj lom neeg ruaj khov yog siab dua cov NdFeB.
Alnico
Al Ni Co yog cov hlau uas muaj txhuas, npib tsib xee, cobalt, hlau thiab lwm yam khoom siv hlau. Nws muaj siab remanence, tsis tshua muaj coercivity, zoo corrosion kuj, tsis tshua muaj kub coefficient, kub tsis kam, humidity kuj, muaj zog corrosion kuj, tsis yooj yim rau oxidize thiab zoo ua hauj lwm stability. Sintered al Ni Co yog tsim los ntawm hmoov metallurgy. Nws yog dav siv nyob rau hauv automotive qhov chaw, instrumentation, lub cev muaj zog, electroacoustic, kev sib txuas lus, magnetoelectric hloov, sensor, kev qhia thiab aerospace.
Flexible Rubber Magnet
Cov hlau nplaum yooj yim zoo ib yam li kev txhaj tshuaj molded hlau nplaum tab sis yog tsim nyob rau hauv lub tiaj tus strips thiab nplooj ntawv. Cov hlau nplaum no qis dua hauv lub zog sib nqus thiab hloov tau yooj yim nyob ntawm cov ntaub ntawv uas tau siv hauv qhov sib xyaw nrog cov hmoov sib nqus. Vinyl feem ntau siv nyob rau hauv hom hlau nplaum no ua tus khi.
