Alnico hlau nplaum thiab NdFeB hlau nplaum yog ob qho khoom siv hlau nplaum ruaj khov uas sib txawv hauv ntau txoj hauv kev.
1. Qhov txawv txav
NdFeB cov hlau nplaum muaj zog muaj hlau neodymium, uas yooj yim oxidized thiab yuav tsum tau plating nto. Alnico muaj kev tiv thaiv corrosion zoo thiab feem ntau tsis tas yuav kho qhov chaw.
Qhov sib txawv ntawm cov ntaub ntawv ntawm AlNiCo thiab NdFeB. Qhov tawg ntawm qhov chaw ntawm ob cov khoom sib txawv. NdFeB yog cov siv lead ua me me zoo heev, thaum AlNiCo hla ntu yog rougher thiab cov khoom siv lead ua loj dua.
3. Cov kub ua haujlwm sib txawv
NdFeB feem ntau tuaj yeem tiv taus 80 degree. Alnico hlau nplaum yog 300--500 degree (Alnico hlau nplaum yuav demagnetize ntawm qhov kub siab tshaj 600 degree, yog li peb feem ntau hais tias qhov kub thiab txias ua hauj lwm ntawm Alnico hlau nplaum yog tsawg dua los yog sib npaug rau 550 degree ).
4. Qhov sib txawv ntawm lub zog sib nqus ntawm alnico hlau nplaum thiab neodymium hlau nplaum. Alnico yog cov hlau nplaum kub-resistant, tab sis nws cov hlau nplaum tsis muaj zog heev. Qhov ntau-kub-resistant cov hlau nplaum yog, qhov tsis muaj zog ntawm cov hlau nplaum. Lub zog sib nqus yog inversely proportional rau qhov kub tsis kam. Lub zog sib nqus ntawm neodymium hlau nplaum muaj zog ntau dua li ntawm alnico.
5. Kev sib piv ntawm AlNiCo ceev thiab NdFeB ceev
Qhov ceev ntawm NdFeB hlau nplaum yog 7.5-7.6g/cm3, thiab qhov ceev ntawm AlNiCo hlau nplaum yog 7.0-7.4g/cm3.
6. Tus nqi sib txawv ntawm ob yog tias AlNiCo kim vim nws cov tswv yim kev pab cuam ntawm cobalt thiab npib tsib xee. Nws tsis tshua siv los ntawm cov neeg siv khoom, thiab tam sim no ntau tus neeg siv khoom xaiv NdFeB hloov.
7. Qhov sib txawv ntawm daim ntawv thov
Alnico hlau nplaum feem ntau yog siv rau hauv kev tsim cov sensors, ntsuas ntsuas, motors, generators thiab lwm yam kev siv uas yuav tsum tau kub thiab siab magnetic teb stability.
NdFeB hlau nplaum feem ntau yog siv rau hauv kev tsim cov tshuab hluav taws xob, cua turbines, sib nqus sib nqus, cov khoom siv sib nqus resonance (MRI) thiab lwm yam kev siv uas yuav tsum tau muaj zog sib nqus.
