Qee cov neeg siv khoom txawv teb chaws tau nug seb NdFeB hlau nplaum tuaj yeem thauj los ntawm huab cua. Raws li peb txhua tus paub, cov hlau nplaum ntawm hlau-boron hlau nplaum muaj zog heev. Yog tias coj mus rau lub dav hlau, nws yuav cuam tshuam rau cov khoom siv hluav taws xob, thiab lwm yam, yog li NdFeB hlau nplaum yuav tsum tau degaussed. Lub npe hu ua Demagnetization, qhov tseeb, cov hlau nplaum ntawm cov hlau nplaum nws tus kheej tsis ploj mus, tab sis cov khoom sib nqus ntawm cov hlau nplaum hloov pauv los ntawm cov khoom siv hlau nplaum ua rau cov hlau nplaum tsis muaj zog, uas yog, cov khoom sib nqus sib nqus.
Kev ntim khoom sib nqus feem ntau yog sib cais los ntawm cov ntawv hlau, tsau rau rau sab hauv lub thawv, thiab tom qab ntawd ntim rau hauv cov hnab hlaws paj rwb thiab cov thawv, kom nws tuaj yeem dhau lub dav hlau kev soj ntsuam kev ruaj ntseg.
Lub hauv paus ntsiab lus ntawm kev sib nqus sib nqus yog dab tsi?
Lub hauv paus ntsiab lus ntawm kev sib nqus sib nqus yog los tiv thaiv magnetic teb, uas feem ntau yog hais txog kev ruaj khov magnetic teb los yog tsawg zaus magnetic teb. Nws tsuas yog tso siab rau cov hlau nplaum sib nqus. Yog tias lub thawv yog ua los ntawm cov khoom sib nqus nrog cov permeability siab, "cov kab sib nqus" uas yuav tawm mus rau hauv lub thawv yuav muaj zog. Nws tsim ib qho kev kaw nrog cov khoom siv hauv lub thawv, yog li txo qhov xau ntawm cov kab hlau nplaum sab nraum lub thawv.
Dab tsi yog cov txheej txheem siv rau kev sib nqus sib nqus?
Yuav kom ua tiav cov hlau nplaum tiv thaiv, qhov siab dua qhov sib nqus permeability ntawm cov khoom, qhov zoo dua; rau tib yam khoom, lub thicker qhov zoo; rau tib cov ntaub ntawv thiab thickness, cov khaubncaws sab nraud povtseg ntau zoo dua. Tsis tas li ntawd, cov hlau nplaum NdFeB yuav tsum tau muab tso rau hauv nruab nrab ntawm lub thawv tiv thaiv kom tsis txhob muaj cov kab hlau nplaum sib nqus ntawm ib sab kom tsis txhob muaj kev xav ntau dua thiab tawm mus ntau dua.
Qhov thib ob, cov khoom yog magnetized. Cov ntaub ntawv sib nqus permeable yeej ib txwm yaj hauv qhov chaw sib nqus, tab sis tsuas yog cov khoom siv hlau nplaum nyuaj, ib zaug tshem tawm sab nraud, cov hlau nplaum yuav raug tshem tawm tam sim ntawd. Yog li ntawd, yog tias cov hlau nplaum NdFeB yog ua los ntawm cov khoom siv hlau nplaum nyuaj thiab tsim cov hlau nplaum tshiab, nws cov nyhuv yuav raug cuam tshuam. Qhov no yog vim li cas cov ntaub thaiv npog tsuas tuaj yeem siv cov khoom sib nqus mos.
