Cov hlau nplaum ruaj khovyog qhov tseem ceeb hauv ntau daim ntawv thov, los ntawm cov tshuab hluav taws xob mus rau cov khoom siv sib nqus. Kev nkag siab txog cov ntaub ntawv zoo tshaj plaws rau kev tsim cov hlau nplaum no yog qhov tseem ceeb rau kev txhim kho lawv cov kev ua tau zoo thiab kev ua haujlwm zoo.
Cov khoom siv ntau tshaj plaws rau kev ua cov hlau nplaum ruaj khov muaj xws li neodymium, samarium-cobalt, ferrite, thiab alnico. Txhua yam ntawm cov ntaub ntawv no muaj cov khoom tshwj xeeb uas ua rau lawv haum rau kev siv sib txawv.
Neodymium hlau nplaum: Feem ntau hu ua NdFeB hlau nplaum, neodymium hlau nplaum yog tsim los ntawm cov hlau nplaum ntawm neodymium, hlau, thiab boron. Lawv paub txog lawv qhov tshwj xeeb sib nqus lub zog, ua rau lawv muaj zog ruaj khov hlau nplaum hom muaj. Lawv cov khoom siv hluav taws xob sib nqus siab tso cai rau cov qauv me me thiab sib dua hauv cov ntawv thov xws li motors thiab generators. Txawm li cas los xij, lawv tuaj yeem ua rau corrosion, yog li kev tiv thaiv txheej feem ntau tsim nyog.
Samarium-Cobalt Magnets: Cov hlau nplaum no yog tsim los ntawm kev sib xyaw ntawm samarium thiab cobalt. Lawv paub txog lawv qhov kev tiv thaiv siab rau demagnetization thiab zoo heev thermal stability, ua rau lawv zoo tagnrho rau cov ntawv thov kub. Txawm hais tias lawv kim dua li cov hlau nplaum neodymium, lawv cov kav ntev thiab kev ua haujlwm hauv huab cua ua rau lawv nyiam xaiv hauv kev siv dav hlau thiab tub rog.
Ferrite hlau nplaum: Ua los ntawm hlau oxide thiab lwm yam khoom siv hlau, cov hlau nplaum ferrite yog tus nqi zoo thiab siv dav hauv ntau yam khoom siv. Lawv muaj zog tsawg dua neodymium thiab samarium-cobalt hlau nplaum tab sis muaj zog tiv taus corrosion thiab tuaj yeem ua haujlwm hauv qhov kub thiab txias. Lawv cov nqi pheej yig ua rau lawv muaj kev xaiv nrov rau cov ntawv thov xws li cov hlau nplaum tub yees thiab cov hais lus nrov.
Alnico hlau nplaum: Ua los ntawm txhuas, npib tsib xee, thiab cobalt, alnico hlau nplaum paub txog lawv lub peev xwm tiv taus qhov kub thiab txias thiab lawv cov khoom sib nqus zoo heev. Lawv feem ntau siv nyob rau hauv daim ntawv thov uas yuav tsum tau ib tug ruaj khov magnetic teb, xws li nyob rau hauv hluav taws xob guitars thiab sensors.
Hauv kev xaus, cov khoom siv zoo tshaj plaws rau kev ua cov hlau nplaum ruaj khov nyob ntawm qhov tshwj xeeb ntawm daim ntawv thov. Neodymium hlau nplaum muab lub zog tsis sib xws, thaum samarium-cobalt muab qhov kub thiab txias. Ferrite thiab alnico hlau nplaum ua haujlwm tau zoo hauv cov ntawv thov raug nqi, qhia txog ntau yam ntawm cov ntaub ntawv muaj los tsim cov hlau nplaum ruaj khov.
Post lub sij hawm: Nov-29-2024