Peb Cov Txheej Txheem Ntau Lawm Rau NdFeB Magnets

Peb Cov Txheej Txheem Ntau Lawm rau NdFeB Magnets

NdFeB hlau nplaum, ib hom hlau nplaum ruaj khov, yog tus cwj pwm los ntawm kev quab yuam siab heev (Hc), cov khoom siv hluav taws xob siab tshaj plaws, thiab kev ua kom rov zoo (Br). Lawv kuj muaj kev ruaj ntseg zoo heev thiab muaj zog dua li cov hlau nplaum zoo tib yam. Yog li ntawd, lawv cov ntawv thov yog qhov dav, npog yuav luag txhua qhov kev lag luam.

Hauv kev tsim khoom txhua hnub, tus nqi ntawm NdFeB hlau nplaum sib txawv raws li lawv qib sib nqus kev ua tau zoo thiab kev siv tshuab ua haujlwm. Feem ntau, muaj peb txoj kev tsim khoom tseem ceeb rau NdFeB hlau nplaum: txheej txheem sintering, txheej txheem sib txuas, thiab txheej txheem txhaj tshuaj molding. Cia peb tshuaj xyuas cov txheej txheem no kom ntxaws.

Covsintered NdFeB hlau nplaum txheej txheemKev sib tsoo cov khoom sib nqus rau hauv cov hmoov uas siv cov cua ntws thiab tom qab ntawd smelting rau hauv lub cub tawg los tsim cov khoom siv nrog cov lus qhia tshwj xeeb. NdFeB hlau nplaum tsim los ntawm cov txheej txheem no nthuav tawm lub zog quab yuam siab heev thiab cov khoom siv hluav taws xob sib nqus uas muaj ntau tshaj kaum npaug ntau dua li cov ferrites zoo tib yam. Tus nqi ntawm NdFeB hlau nplaum ua siv txoj kev no yog tus qauv, nrog qhov sib txawv me me. Thaum tsim, cov hlau nplaum tuaj yeem txiav rau hauv ntau yam duab raws li xav tau. Txawm li cas los xij, lawv qhov chaw muaj cov tshuaj lom neeg ua haujlwm siab, yog li electroplating yog qhov tsim nyog, nrog zinc-nickel plating yog feem ntau.

Piv rau sintered NdFeB hlau nplaum, lubbonded NdFeB hlau nplaum txheej txheemua rau tus nqi siab dua. Qhov no feem ntau yog vim cov hlau nplaum NdFeB sib koom ua ke hauv ib qho kev ua haujlwm, tshem tawm qhov xav tau kev txiav ntxiv. Nyob rau hauv cov txheej txheem no, NdFeB hmoov yog tov nrog lwm cov ntaub ntawv thiab zoo li tus mus tas li hlau nplaum siv compression, extrusion, los yog txhaj tshuaj molding hom kev kawm.

CovKev txhaj tshuaj molding NdFeB hlau nplaum txheej txheemyog qhov xav tau tshaj plaws ntawm peb. Cov tshuab no yuav tsum tau ua cov pwm zoo heev, rau hauv uas NdFeB hmoov muab tso rau tsim cov khoom tiav nrog cov duab nyuaj. Cov khoom uas tau tshwm sim feem ntau nyias nyias, thiab tus nqi ntawm NdFeB hlau nplaum ua los ntawm cov cuab yeej no yog qhov siab tshaj plaws.