Ua cov pas nrig sib nqus poob lub zog dhau sijhawm
May 22, 2025
1. Hom kev sib nqus ntawm cov pas nrig sib nqus thiab lawv cov kev ruaj khov
Cov hlau nplaum ruaj khov (ndfeb, smco, ferrite):
Ndfeb (neodymium): Strongest but prone to gradual strength loss if exposed to high temperatures (>80 Qib \/ 176 Degree F) lossis corrosion.
SMCO (Samarium Cobalt): Khaws lub zog zoo dua nyob rau hauv huab cua sov (txog 350 degree \/ 662 degree f) thiab tiv taus corrosion.
Ferrite (Ceramic): Tsis muaj zog tab sis muaj kev tiv thaiv zoo heev rau demagnetization thiab kub.
Electromagnets: Poob cov magnetism tam sim ntawd thaum lub hwj chim tawm tab sis tsis txhob thuam lub sijhawm yog siv kom raug.
2. Yam uas ua rau tsis muaj zog
A. Thermal demagnetization
Tshaj cov hlau nplaumNtau tshaj plaws kev ua haujlwm kub(Piv txwv li, ndfeb degrades sai dua li 80 degree).
Lus teb: Xaiv SKCO lossis siab-kub ndfl cov qhab nia rau cov chaw kub.
B. Neeg Kho Tshuab Poob Siab
Poob lossis tawm hlau nplaum tuaj yeem cuam tshuam lawv cov qauv sab hauv, txo cov hlau nplaum teb.
Lus teb: Kov rods ua tib zoo thiab zam kev cuam tshuam.
C. Kev ua cev tub
Uncoated ndFeb hlau nplaum xeb hauv noo los yog ntub dej, tsis muaj zog ua haujlwm.
Lus teb: Siv cov pas nrig steel hlau-clad lossis epoxy-coated hlau nplaum.
D. Sab Nraud Daim Teb
Muaj zog tawm tsam cov sib nqus sib nraus tuaj yeem ua qee yam demagnetize cov hlau nplaum ruaj khov.
E. Kev ua laus
Cov hlau nplaum ruaj khov ib txwm poob ~1%Ntawm lawv lub zog txhua10 xyooNyob rau hauv cov kev mob zoo tagnrho.
3. Kos npe koj tus pas nrig sib nqus tau poob lub zog
Txo kev muaj peev xwm nyiam ferrous hais.
Pom corrosion lossis lub cev puas tsuaj.
Cov kuab paug nyob rau hauv cov ntaub ntawv ua tiav.
Yuav ua li cas tswj tau lub zog sib nqus
Zam kev kub siab: Nyob sab hauv cov hlau nplaum txoj kev ntsuas kub thiab txias.
Tiv Thaiv Corrosion: Siv coated lossis stainless hlau-encased pas nrig nyob rau hauv ib puag ncig ntub dej.
Kev soj ntsuam ib txwm: Ntsuas teb lub zog nrog aGauss 'meterTxhua xyoo.
Tsim Ny Cia: Cia rods deb ntawm tshav kub, noo noo, thiab lwm yam hlau nplaum.
Thaum twg los hloov cov pas nrig sib nqus
Yog hais tias gauss nyeem ntawv poob qis dua 80% ntawm thawj lub zog.
Yog tias pom kev puas tsuaj lossis mob corrosion xaus.
Yog tias muaj cov qib tsis huv hauv koj cov txheej txheem nce poob nthav.
