Rare Earth Magnets thiab Non-rare Earth Magnets

Mar 28, 2024 Tso lus

Cov hlau nplaum tsis tshua muaj hauv ntiaj teb thiab cov hlau nplaum tsis tshua muaj hauv ntiaj teb tam sim no feem ntau siv cov hlau nplaum hauv ntiaj teb, thiab lawv muaj cov ntawv thov tseem ceeb hauv lawv thaj chaw. Txawm hais tias lawv cov khoom sib xyaw sib txawv, lawv txhua tus tau tsim los ua kom tiav ib lub hom phiaj: ua kom muaj zog sib nqus.

Qhov sib txawv loj tshaj plaws ntawm cov hlau nplaum tsis tshua muaj hauv ntiaj teb thiab cov hlau nplaum uas tsis tshua muaj hauv ntiaj teb yog cov khoom siv sib xyaw. Cov hlau nplaum tsis tshua muaj hauv ntiaj teb yog tsim los ntawm cov ntiaj teb tsis tshua muaj thiab qee cov hlau hloov pauv, qhov tseem ceeb tshaj plaws yog terbium, neodymium thiab dysprosium. Vim tias cov ntsiab lus no tsis tshua muaj, cov hlau nplaum tsis tshua muaj hauv ntiaj teb feem ntau raug nqi ntau dua. Cov hlau nplaum uas tsis tshua muaj hauv ntiaj teb yog ua los ntawm cov khoom siv xws li hlau oxide, cobalt, npib tsib xee, thiab txhuas, thiab tus nqi kuj tsawg.

Txawm hais tias tsawg lub ntiaj teb hlau nplaum raug nqi ntau dua, lawv lub zog sib nqus yog ntau dua li cov hlau nplaum uas tsis tshua muaj hauv ntiaj teb, uas txhais tau tias lawv muaj cov hlau nplaum zoo dua. Yog li ntawd, cov hlau nplaum tsis tshua muaj hauv ntiaj teb tau siv dav hauv cov cuab yeej siv niaj hnub thiab kev lag luam, xws li motors, generators, tsheb, computers thiab lwm yam.

Txawm li cas los xij, cov hlau nplaum uas tsis tshua muaj hauv ntiaj teb kuj muaj qhov tshwj xeeb ntawm daim ntawv thov. Nws tuaj yeem siv los ua cov khoom siv xws li suab thiab cov khoom siv hluav taws xob vim tias nws tsis yog pheej yig dua tab sis kuj tsis ua rau muaj teeb meem ib puag ncig thaum lub sijhawm tsim khoom. Tsis tas li ntawd, cov hlau nplaum uas tsis tshua muaj hauv ntiaj teb tuaj yeem siv rau hauv cov khoom siv kho mob xws li magnetic resonance imaging (MRI).

Feem ntau, cov hlau nplaum tsis tshua muaj hauv ntiaj teb thiab cov hlau nplaum tsis tshua muaj hauv ntiaj teb muaj lawv tus kheej daim ntawv thov teb thiab qhov tseem ceeb. Kev xaiv ntawm hom hlau nplaum nyob ntawm qhov xav tau ntawm daim ntawv thov tshwj xeeb, thiab tsis yog txhua daim ntawv thov yuav tsum muaj cov khoom siv tib yam. Tsis muaj teeb meem dab tsi yog xaiv cov hlau nplaum, peb yuav tsum nquag txhawb kev tsim kho thev naus laus zis thiab kev tiv thaiv ib puag ncig kom ua rau daim ntawv thov cov hlau nplaum nrov dua thiab ruaj khov.

Care and maintenance of various magnets