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  • Dab tsi ntawm cov hlau yog nyiam rau Neodymium Magnets?

    Peb txhua tus paub tias cov hlau nplaum nyiam ib leeg ntawm cov ncej sab nraud thiab tawm tsam zoo li cov ncej. Tab sis raws nraim hom hlau uas lawv nyiam? Neodymium hlau nplaum yog lub npe hu ua cov khoom siv hlau nplaum muaj zog tshaj plaws thiab muaj lub zog tuav siab tshaj plaws rau cov hlau no. Lawv hu ua ferromagnetic hlau uas muaj cov hlau, npib tsib xee thiab tsis tshua muaj ntiaj teb alloys. Ntawm qhov tsis sib xws, paramagnetism yog qhov tsis muaj zog txaus nyiam ntawm lwm cov hlau thiab hlau nplaum uas koj tuaj yeem tsis pom.
    Cov hlau uas siv ntau tshaj plaws kom nyiam los ntawm cov hlau nplaum lossis cov khoom siv hlau nplaum yog cov hlau ferrous uas muaj hlau thiab hlau alloys. Cov hlau, piv txwv li, tau siv dav thiab tuaj yeem ua tau yooj yim los ntawm kev nqa cov khoom siv uas muaj cov hlau nplaum neodymium. Vim lub fact tias cov hlau electrons thiab lawv cov magnetic teb tau yooj yim ua raws li sab nraud magnetic teb, nws yog ib qho yooj yim rau neodymium hlau nplaum kom nyiam rau lawv. Thiab raws li tib txoj kev xav, neodymium hlau nplaum uas muaj hlau tuaj yeem raug ntxias los ntawm cov hlau nplaum muaj zog thiab khaws cov hlau nplaum. Stainless hlau alloys ntawm qhov tod tes tsis muaj cov cuab yeej no thiab tsis tuaj yeem cuam tshuam rau cov hlau nplaum. Elemental nickel thiab qee cov nickel alloys kuj yog ferromagnetic, xws li Aluminium-Cobalt-Nickel (alnico) hlau nplaum. Tus yuam sij rau lawv nyiam cov hlau nplaum yog lawv cov alloy muaj pes tsawg leeg lossis lwm yam khoom uas lawv muaj. Cov npib tsib xee tsis yog ferromagnetic vim tias lawv muaj feem ntau ntawm tooj liab thiab ib feem me me ntawm npib tsib xee.
    Cov hlau zoo li txhuas, tooj liab thiab kub qhia paramagnetism lossis tsis muaj zog txaus nyiam. Thaum muab tso rau hauv ib qho chaw sib nqus los yog ze rau cov hlau nplaum, cov hlau zoo li no tsim lawv tus kheej cov khoom sib nqus uas tsis muaj zog txaus nyiam lawv rau cov hlau nplaum thiab tsis txhob pheej hmoo thaum cov hlau nplaum sab nraud raug tshem tawm.
    Yog li, nws yog ib qho tseem ceeb kom nkag siab txog koj cov khoom ua ntej yuav cov khoom siv hlau nplaum, mounting hlau nplaum lossis nqa cov hlau nplaum. Nws yog qhov zoo tshaj plaws los nrhiav cov khoom sib xyaw ntawm koj cov khoom siv hlau uas muaj qee yam ntsiab lus, piv txwv li carbon, cuam tshuam rau cov hlau nplaum rub lub zog.


    Post lub sij hawm: Apr-22-2020