NdFeB cov ntaub ntawv muaj ntau ntau ntawm neodymium thiab hlau, uas yog nquag xeb. Yog li, NdFeB hlau nplaum yuav tsum tau coated nto. Surface chemical passivation yog ib qho kev daws teeb meem zoo dua tam sim no. NdFeB muaj cov khoom siv hluav taws xob sib nqus siab heev thiab lub zog quab yuam. Qhov zoo ntawm lub zog ceev ceev ua rau NdFeB cov khoom siv hlau nplaum ruaj khov siv dav hauv kev lag luam niaj hnub thiab cov tshuab hluav taws xob, ua rau nws tuaj yeem ua cov twj paj nruag, electroacoustic motors, sib nqus sib nqus magnetization miniaturization, lub teeb yuag, thiab cov khoom siv nyias. Qhov zoo ntawm NdFeB yog cov nqi siab ua haujlwm thiab cov khoom siv kho tshuab zoo; qhov tsis zoo yog qhov kub tsis tshua muaj Curie, cov yam ntxwv kub tsis zoo, yooj yim hmoov thiab corrosion. Nws yuav tsum tau txhim kho los ntawm kev kho nws cov tshuaj muaj pes tsawg leeg thiab noj cov txheej txheem kho saum npoo. , kom ua tau raws li qhov yuav tsum tau ua ntawm kev siv tswv yim.
Kev faib tawm:
NdFeB muab faib ua sintered NdFeB thiab bonded NdFeB. Bonded NdFeB muaj tag nrho cov hlau nplaum sib nqus thiab corrosion kuj; thaum sintered NdFeB yog ib qho yooj yim rau corrode thiab yuav tsum tau ib tug txheej ntawm nto. Feem ntau, muaj zinc plating, npib tsib xee plating, ib puag ncig tus phooj ywg zinc, ib puag ncig tus phooj ywg npib tsib xee, npib tsib xee tooj liab npib tsib xee, ib puag ncig tus phooj ywg npib tsib xee tooj liab nickel, thiab lwm yam. khoom.
Daim ntawv thov:
Sintered NdFeB cov khoom siv hlau nplaum ruaj khov muaj cov khoom sib nqus zoo heev thiab yog siv dav hauv cov khoom siv hluav taws xob, lub cev muaj zog, cov khoom siv kho mob, cov khoom ua si, ntim khoom, kho vajtse, aerospace thiab lwm yam haujlwm. Cov khoom siv ntau dua yog cov hlau nplaum ruaj khov, cov neeg hais lus, cov khoom sib nqus sib nqus, lub khoos phis tawj disk, cov khoom siv magnetic resonance imaging, thiab lwm yam.
Txawm hais tias cov ntsiab lus ntawm boron me me, nws plays lub luag haujlwm tseem ceeb hauv kev tsim cov tetragonal intermetallic tebchaw nrog siab saturation magnetization, siab uniaxial anisotropy thiab siab Curie kub.
