Cov hlau nplaum muaj zog feem ntau xa mus rau NdFeB cov hlau nplaum muaj zog, uas yog tsim los ntawm cov hlau tsis tshua muaj hauv ntiaj teb praseodymium, neodymium thiab cov khoom siv hlau. Cov khoom no yog tam sim no siv dav hauv kev ua lag luam, tab sis cov hlau nplaum muaj zog feem ntau ntsib cov hlau nplaum tsis muaj zog lossis ploj thaum siv. Nws feem ntau tshwm sim. Peb sau cov laj thawj rau cov hlau nplaum demagnetization raws li hauv qab no:
1. Magnet txhaj molding yuav demagnetize los yog demagnetize. Qhov ntsuas kub tsawg kawg nkaus ntawm NdFeB cov hlau nplaum muaj zog yog 80 degree, thiab qee zaum qhov kev txhaj tshuaj molding yog qhov siab tshaj 120 degree, yog li lub sijhawm luv luv ntawm 2 vib nas this mus rau 3 vib nas this ntawm kev txhaj tshuaj molding yuav ua rau ib nrab demagnetization. Xav txog tej yam.
2. NdFeB muaj zog hlau nplaum yog demagnetized tom qab kub nias. Cov iav fiber ntau feem ntau yog siv rau kub nias ntawm qhov kub siab tshaj 150 degree.
3. Cov hlau nplaum demagnetizes tom qab ci hauv qhov cub.
4. NdFeB muaj zog hlau nplaum muaj ntau impurities, ua rau cov hlau nplaum tsis muaj zog. Qhov no yog qhov tshwm sim ntawm feem ntau cov neeg yuav khoom pheej yig. Vim hais tias thaum nws los txog rau cov lus hais, khw ncig thiab xaiv cov chaw tsim khoom nrog cov nqe lus qis tshaj. Pom tseeb tias cov neeg siv khoom thov N35 qib, tab sis cov chaw tsim khoom tsis zoo nrog cov lus hais tsawg heev siv N28 thiab N33 cov ntaub ntawv. Cov neeg siv khoom yuav tsum tsis txhob cia siab tias yuav tuaj yeem ntes nws. Yog tias qhov ntau txog 30K, nws puas yuav tsum ntsuas maj mam nrog lub ntsuas dej ntws? Ib tus neeg muag khoom muaj kev ntseeg siab thiab ruaj khov yog qhov tseem ceeb heev. Kuv yuav ua li cas rau koj siv cov ntaub ntawv N35 yam tsis muaj nqi? Ntxiv mus, qee cov tub lag luam hlau nplaum yog siv rau ntim. Txawm li cas los xij, tsuav lawv tuaj yeem nqus tau, cov ntaub ntawv tsuas yog khib nyiab xwb.
Txhawm rau ua kom tiav, 90% ntawm cov laj thawj saum toj no rau demagnetization ntawm NdFeB muaj zog hlau nplaum yog qhov tseem ceeb 4 cov ntsiab lus: kub demagnetization, demagnetization vim muaj teeb meem nrog cov khoom nws tus kheej, siab zaus cuam tshuam demagnetization, thiab siab magnetic teb demagnetization.
