Cov hlau nplaum neodymium siv rau dab tsi?

Xyoo 1982, Masato Sagawa ntawm Sumitomo Special Metals tau tshawb pomcov hlau nplaum neodymium. Lub zog sib nqus (BHmax) ntawm cov hlau nplaum no loj dua li ntawm cov hlau nplaum samarium cobalt, thiab nws yog cov khoom siv nrog lub zog sib nqus loj tshaj plaws hauv ntiaj teb thaum lub sijhawm ntawd. Tom qab ntawd, Sumitomo Special Metals tau tsim cov txheej txheem hmoov metallurgy, thiab General Motors tau tsim cov txheej txheem spin spray melting, uas tuaj yeem npajNdFeB hlau nplaum.

 

Kev ua haujlwm ib:

Ua ntej tshaj plaws, lub hlau nplaum neodymium siv tau ua lub compass vim nws muaj kev coj ua zoo, yog li lub hlau nplaum neodymium kuj tseem siv tau ua lub electromagnetic relay lossis lub generator. Yog tias tsim nyog, lub hlau nplaum neodymium kuj tseem siv tau ua lub cev muaj zog.

Kev ua haujlwm thib ob:

Cov hlau nplaum neodymium kuj tseem siv tau ua cov hlau nplaum hlau. Kev siv cov hlau nplaum neodymium hauv kev lag luam ib txwm muaj feem ntau yog siv rau hauv cov cav.

Kev Ua Haujlwm Thib Peb:

Qhov thib ob, qhov ntau ntawm daim ntawv thov ntawm cov hlau nplaum neodymium kuj tseem siv tau rau hauv cov chaw ua haujlwm ntau dua. Piv txwv li,neodymium disc magnetssiv tau ua cov neeg hais lus, thiab cov neeg hais lus dav dav siv tau.

Kev Ua Haujlwm Plaub:

Neodymium nplhaib hlau nplaumkuj tseem tuaj yeem kho cua sov, thiab nuclear magnetic resonance tuaj yeem siv los kuaj mob cov nqaij tsis zoo ntawm tib neeg thiab kuaj mob.

Kev Ua Haujlwm Tsib:

Cov hlau nplaum neodymium siv tau ua cov kiv cua hluav taws xob, thiab siv tau rau cov cav ntawm cov kiv cua hluav taws xob. Tib lub sijhawm, lawv kuj siv tau ua cov ncoo kho mob sib nqus thiab siv txoj siv kho mob sib nqus.

Kev Ua Haujlwm rau:

Peb kuj tseem siv tau cov hlau nplaum neodymium uas tshem tau cov hmoov hlau uas muaj nyob hauv hmoov nplej, thiab lwm yam.

Hauv ntej, txij li thaum tsim cov hlau nplaum no, cov teb thov tshiab tau tshwm sim txhua xyoo, thiab qhov kev loj hlob txhua xyoo tau ntau dua 30%. Yog li ntawd, daim ntawv thov ntawm cov hlau nplaum neodymium yog qhov dav heev.

XaivKev Siv Tshuab Fullzenrau cov hlau nplaum neodymium.Tiv tauj peb.