Taw qhia
Cov hlau nplaum ua lub luag haujlwm tseem ceeb hauv peb lub neej niaj hnub, tab sis koj puas paub tias tsis yog txhua lub hlau nplaum tsim sib npaug? Qee cov hlau nplaum yog "nyuaj" thiab tswj lawv cov magnetic teb rau lub sijhawm ntev, thaum lwm tus yog "mos" thiab nyiam poob lawv cov khoom sib nqus sai.
Hauv tsab xov xwm no, peb yuav ua tib zoo saib cov hlau nplaum mos thiab muab piv txwv ntawm ib qho hlau nplaum zoo li no.
Cov hlau nplaum mos yog dab tsi?
Cov hlau nplaum mos, tseem hu ua cov hlau nplaum tsis tas li lossis cov hlau nplaum ib ntus, yog cov ntaub ntawv uas nthuav tawm cov khoom sib nqus nyob rau hauv qee yam mob tab sis poob lawv cov hlau nplaum sai sai thaum cov xwm txheej raug tshem tawm. Cov hlau nplaum mos yog feem ntau siv rau hauv cov ntawv thov uas qhov chaw sib nqus tsuas yog xav tau ib ntus lossis qhov chaw sib nqus yuav tsum tau yooj yim thim rov qab lossis hloov pauv.
Cov hlau nplaum mos yog ua los ntawm cov khoom siv uas tsis muaj coercivity thiab tsawg remanence. Coercivity yog ib yam khoom uas tsis kam mus ua magnetized, thaum remanence yog cov khoom muaj peev xwm khaws nws cov magnetic teb txawm tias tom qab lub magnetizing quab yuam raug tshem tawm.
Cov khoom siv hlau nplaum mos
Muaj ob peb cov khoom sib nqus mos uas feem ntau siv rau ntau yam kev siv. Cov ntaub ntawv no muaj xws li:
1. Hlau
Hlau yog ib qho ntawm cov khoom siv feem ntau siv rau cov hlau nplaum mos. Hlau muaj qis coercivity thiab tsis tshua muaj remanence, ua rau nws yog ib qho kev xaiv zoo tshaj plaws rau cov hlau nplaum ib ntus.
2. Silicon hlau
Silicon hlau yog lwm cov khoom siv hlau nplaum uas feem ntau siv. Nws yog ib qho alloy ntawm hlau thiab silicon, thiab nws cov khoom tshwj xeeb tso cai rau nws siv rau hauv hluav taws xob transformers thiab lub cev muaj zog cores.
3. Nickel-hlau alloys
Nickel-hlau alloys, tseem hu ua permalloys, yog lwm hom khoom sib nqus mos. Lawv siv nyob rau hauv daim ntawv thov sib nqus shielding thiab hauv kev tsim cov khoom siv hluav taws xob.
Piv txwv ntawm cov hlau nplaum mos
Ib qho piv txwv ntawm cov hlau nplaum mos yog cov hlau nplaum uas muaj nyob tom qab ntawm daim npav rho nyiaj. Cov kab hlau nplaum yog tsim los ntawm ib txheej nyias ntawm ferromagnetic cov khoom uas tuaj yeem sib nqus tau thaum raug cov hlau nplaum.
Thaum koj los so koj daim npav rho nyiaj ntawm qhov chaw muag khoom, cov kab hlau nplaum sib txuas nrog lub taub hau sib nqus, uas nyeem cov ntaub ntawv khaws cia ntawm kab txaij thiab ua cov khoom lag luam.
Cov kab hlau nplaum sib nqus ntawm daim npav rho nyiaj yog ib qho piv txwv zoo tshaj plaws ntawm cov hlau nplaum mos vim nws tsuas yog xav tau tswj nws cov khoom sib nqus ib ntus.
Xaus
Cov hlau nplaum mos yog ib qho tseem ceeb ntawm ntau yam kev siv niaj hnub. Lawv yog siv nyob rau hauv cov xwm txheej uas lub magnetic teb tsuas yog yuav tsum tau ib ntus los yog yooj yim reversible.
Cov ntaub ntawv zoo li hlau, silicon hlau, thiab nickel-hlau alloys feem ntau yog siv rau cov ntawv thov no. Thiab yog tias koj tau siv daim npav rho nyiaj nrog cov kab hlau nplaum, koj tau cuam tshuam nrog cov hlau nplaum muag ua ntej!
Kev nkag siab txog cov khoom thiab kev siv cov hlau nplaum mos tuaj yeem pab peb zoo siab rau ntau txoj hauv kev uas cov ntaub ntawv tshawb fawb cuam tshuam rau peb lub neej.
