xov xwm

Feem ntau ntawm cov nplhaib sib nqus yuav tsum tau pleev xim rau kom yooj yim rau kev sib txawv. Feem ntau, cov hmoov hlau hlau yog qhov txawv ntawm ob xim. Cov khoom siv feem ntau yog xim liab / pob tshab, daj / liab, ntsuab / liab, ntsuab / xiav thiab daj / dawb. Lub nplhaib manganese feem ntau yog xim ntsuab, hlau-silicon-aluminium feem ntau yog dub thiab lwm yam. Qhov tseeb, cov xim ntawm lub nplhaib sib nqus tom qab tua tsis muaj dab tsi cuam tshuam nrog dyeing ntawm cov xim pleev xim tom qab, nws tsuas yog kev pom zoo hauv kev lag luam. Piv txwv li, ntsuab sawv cev siab permeability magnetic nplhaib; ob-xim sawv cev rau hlau hmoov core magnetic nplhaib; dub sawv cev rau hlau-silicon-aluminium magnetic nplhaib, thiab lwm yam.
(1) High magnetic permeability nplhaib
Sib nqus nplhaib inductors, peb yuav tsum hais nickel-zinc ferrite magnetic nplhaib. Lub nplhaib sib nqus tau muab faib ua npib tsib xee-zinc thiab manganese-zinc raws li cov khoom siv. Kev sib nqus permeability ntawm nickel-zinc ferrite magnetic nplhaib cov ntaub ntawv tam sim no siv li ntawm 15-2000. Cov khoom siv feem ntau yog npib tsib xee-zinc ferrite nrog qhov sib nqus permeability ntawm 100- Ntawm 1000, raws li kev faib tawm magnetic permeability, nws muab faib ua cov khoom sib nqus permeability tsawg. Qhov sib nqus permeability ntawm manganese-zinc ferrite magnetic nplhaib khoom feem ntau yog siab dua 1000, yog li lub nplhaib sib nqus ua los ntawm cov khoom siv manganese-zinc hu ua high permeability magnetic nplhaib.
Nickel-zinc ferrite magnetic rings feem ntau yog siv rau ntau yam xov hlau, Circuit Court boards, thiab tiv thaiv kev cuam tshuam hauv cov khoom siv computer. Manganese-zinc ferrite magnetic rings tuaj yeem siv los ua inductors, transformers, lim cores, magnetic heads thiab kav hlau txais xov rods. Feem ntau, qhov qis ntawm cov khoom permeability, qhov dav siv ntau zaus; qhov siab dua cov khoom permeability, qhov nqaim dua qhov siv tau ntau zaus.
(2) Hlau hmoov core nplhaib

Hlau hmoov core yog ib lo lus nrov rau cov khoom siv hlau nplaum ferric oxide, uas yog siv rau hauv hluav taws xob circuits los daws cov teeb meem electromagnetic compatibility (EMC). Hauv kev siv tswv yim, ntau lwm yam tshuaj yuav raug ntxiv raws li kev lim dej sib txawv hauv cov kab sib txawv.
Thaum ntxov sib nqus hmoov cores tau "bonded" hlau mos magnetic cores ua los ntawm hlau-silicon-aluminium alloy magnetic hmoov. Qhov no hlau-silicon-aluminium magnetic hmoov core feem ntau hu ua "hlau hmoov core". Nws cov txheej txheem kev npaj yog: siv Fe-Si-Al alloy magnetic hmoov kom flattened los ntawm pob milling thiab coated nrog ib txheej insulating los ntawm cov tshuaj, ces ntxiv txog 15wt% binder, sib tov tusyees, ces pwm thiab solidify, thiab ces kho cua sov. (stress relief) ua cov khoom. Cov khoom siv "hlau hmoov core" cov khoom no feem ntau ua haujlwm ntawm 20kHz txog 200kHz. Vim tias lawv muaj ntau dua saturation sib nqus flux ceev dua ferrites ua hauj lwm nyob rau hauv tib zaus band, zoo DC superposition yam ntxwv, nyob ze rau xoom magnetostriction coefficient, tsis muaj suab nrov thaum lub sij hawm ua hauj lwm, zoo zaus stability, thiab high efficiency-nqi piv. Nws yog dav siv hauv cov khoom siv hluav taws xob xws li high-frequency electronic transformers. Lawv qhov tsis zoo yog tias cov khoom tsis sib nqus tsis tsuas yog tsim cov hlau nplaum sib nqus, tab sis kuj ua rau txoj kev sib nqus flux tsis tu ncua, thiab hauv zos demagnetization ua rau txo qis hauv magnetic permeability.
Qhov tsis ntev los no tau tsim muaj kev ua tau zoo ntawm cov hlau hmoov hlau yog txawv ntawm cov tsoos hlau-silicon-aluminium magnetic hmoov core. Cov khoom siv raw siv tsis yog hlau nplaum hlau nplaum tab sis cov hmoov hlau ntshiab coated nrog ib txheej insulating. Tus nqi ntawm cov binder yog tsawg heev, yog li qhov sib nqus flux ceev yog loj. nce qhov loj. Lawv ua haujlwm nyob rau hauv nruab nrab-tsawg zaus band hauv qab 5kHz, feem ntau ob peb puas Hz, uas yog qis dua qhov ua haujlwm zaus ntawm FeSiAl sib nqus hmoov cores. Lub hom phiaj kev lag luam yog los hloov cov nplooj ntawv silicon steel rau cov motors nrog nws qhov kev poob qis, kev ua haujlwm siab thiab yooj yim ntawm 3D tsim.
Sib nqus Ring Inductor
(3) FeSiAl sib nqus nplhaib
Lub nplhaib sib nqus FeSiAl yog ib qho ntawm cov nplhaib sib nqus nrog kev siv siab. Hauv cov ntsiab lus yooj yim, FeSiAl yog tsim los ntawm txhuas-silicon-hlau thiab muaj qhov Bmax siab (Bmax yog qhov nruab nrab Z siab tshaj plaws nyob rau ntawm qhov chaw sib nqus ntawm cov tub ntxhais sib nqus. ), nws cov tub ntxhais sib nqus poob yog qis dua hlau hmoov core thiab siab sib nqus flux, muaj tsawg magnetostriction (tso suab nrov), yog cov khoom siv hluav taws xob qis qis, tsis muaj thermal aging, tuaj yeem siv los hloov cov hmoov hlau ntawm cov tub ntxhais uas ruaj khov ntawm qhov kub thiab txias.
Cov yam ntxwv tseem ceeb ntawm FeSiAlZ yog qhov poob qis dua cov hlau hmoov cores thiab zoo DC bias yam ntxwv tam sim no. Tus nqi tsis yog qhov siab tshaj plaws, tab sis tsis yog qhov qis tshaj, piv nrog cov hmoov hlau hlau thiab hlau nickel molybdenum.
Cov hlau-silicon-aluminium magnetic hmoov core muaj cov khoom sib nqus zoo heev thiab sib nqus, tsis muaj zog poob thiab siab sib nqus flux ceev. Thaum siv nyob rau hauv qhov kub ntawm -55C ~ + 125C, nws muaj kev ntseeg siab xws li kub tsis kam, humidity resistance thiab vibration resistance;
Nyob rau tib lub sijhawm, qhov dav permeability ntau ntawm 60 ~ 160 yog muaj. Nws yog qhov kev xaiv zoo tshaj plaws rau kev hloov hluav taws xob tso zis choke coil, PFC inductor thiab resonant inductor, nrog rau kev ua haujlwm siab.