Muaj plaub lub ntsiab ntsuas ntsuas kev ua tau zoo ntawm cov khoom siv hlau nplaum: remanence, coercivity, intrinsic coercivity thiab siab tshaj plaws hlau nplaum khoom.
Cov khoom siv hluav taws xob sib nqus (BH) max sawv cev rau qhov sib nqus zog ntom ntom tsim los ntawm qhov chaw sib nqus ncej ntawm cov hlau nplaum, uas yog, lub zog magnetostatic ib chav tsev ntim ntawm qhov sib txawv ntawm huab cua, uas yog qhov siab tshaj ntawm cov khoom ntawm B thiab H ( unit kJ / m3 lossis GOe), thiab nws qhov loj me ncaj qha qhia qhov ua tau zoo ntawm cov hlau nplaum.
1. Cov khoom siv hluav taws xob sib nqus ntawm cov hlau nplaum: cov khoom BH ntawm qhov sib nqus induction siv B thiab cov hlau nplaum sib nqus H ntawm txhua qhov chaw ntawm qhov demagnetization nkhaus ntawm cov hlau nplaum yog hu ua cov khoom siv hluav taws xob sib nqus, thiab nws qhov loj yog proportional rau magnetic zog ceev ntawm cov hlau nplaum nyob rau hauv ib tug muab lub xeev ua hauj lwm. Cov khoom siv hlau nplaum ntseeg tias qhov nkhaus ntawm kev sib raug zoo ntawm cov khoom siv hluav taws xob sib nqus thiab sib nqus induction siv B yog hu ua magnetic zog khoom nkhaus, uas yog raws li cov khoom ntawm B thiab H qhov tseem ceeb ntawm demagnetization nkhaus ntawm cov hlau nplaum raws li txoj kab rov tav, thiab Sib nqus induction intensity B raws li txoj kab ntsug.
2. Kev sib raug zoo ntawm cov khoom siv hluav taws xob siab tshaj plaws thiab cov khoom siv hlau nplaum:
Ob lub hlau nplaum ntawm tib qhov loj, tib tus naj npawb ntawm cov ncej thiab tib lub magnetizing voltage, cov hlau nplaum nrog cov khoom siv hluav taws xob sib nqus muaj qhov sib nqus ntawm qhov chaw siab. Cov neeg muab khoom siv hlau nplaum ntseeg tias tib yam (BH) tus nqi siab tshaj, theem ntawm Br thiab Hcj muaj cov teebmeem hauv qab no ntawm kev sib nqus:
(1) Br siab Hcj qis: nyob rau hauv tib lub magnetizing voltage, tuaj yeem tau txais cov hlau nplaum ntau dua;
(2) Br low Hcj siab: Yuav kom tau txais tib qhov chaw sib nqus, yuav tsum muaj qhov sib nqus ntau dua.
3.Dab tsi yog cov khoom lag luam hlau nplaum hauv cov khoom siv hluav taws xob siab tshaj plaws sawv cev?
(1) Tus naj npawb hauv Ndfeb cov khoom lag luam hlau nplaum sawv cev rau cov khoom siv hluav taws xob siab tshaj plaws ntawm cov khoom, xws li N38, N45SH 38 thiab 45 sawv cev rau cov khoom siv hluav taws xob siab tshaj plaws ntawm cov khoom yog 38MGOe thiab 45MGOe, qhov loj dua, ntau dua Cov khoom siv hluav taws xob sib nqus siab tshaj plaws (tsab ntawv tom qab tus lej sawv cev rau nws qhov kev faib tawm ntawm lub zog quab yuam, Qhov ntau rov qab tsab ntawv qhia qhov ntau dua qhov kev sib koom tes, saib Coercivity thiab Intrinsic Coercivity kom paub meej).
(2) Qib ntawm samarium cobalt hlau nplaum, xws li: SmCo16, SmCo18, SmCo24, SmCo26, SmCo28, thiab lwm yam., qhov twg tus naj npawb kuj sawv cev rau tus nqi ntawm cov khoom sib nqus siab tshaj plaws ntawm cov khoom.
Cov khoom siv hluav taws xob siab tshaj plaws ntawm cov hlau nplaum, ib qho ntawm cov cim qhia ntawm kev ua haujlwm ntawm cov hlau nplaum, tau qhia ntawm no. Yog tias koj muaj kev tsis ntseeg, thov nrog tus neeg muag khoom hlau nplaum!
