Kev sib raug zoo ntawm Magnetic Ring Xim thiab cov khoom | TAU TXAIS

Cov nplhaib sib nqus feem ntau yuav tsum tau pleev xim rau kom yooj yim rau kev sib txawv. Feem ntau, hlau hmoov cores txawv los ntawm ob xim, xws li liab / pob tshab, daj / liab, ntsuab / liab, ntsuab / xiav thiab daj / dawb, manganese core rings feem ntau pleev xim rau ntsuab, hlau, silicon thiab txhuas feem ntau yog dub. , thiab lwm yam. Qhov tseeb, cov xim ntawm lub nplhaib hlau nplaum tom qab tua tsis muaj dab tsi cuam tshuam nrog cov xim dyeing tom qab txau, nws tsuas yog kev pom zoo hauv kev lag luam. Piv txwv li, ntsuab sawv cev rau siab sib nqus conductivity nplhaib; ob-xim sawv cev rau hlau hmoov core magnetic nplhaib ; dub sawv cev rau hlau-silicon-aluminium magnetic nplhaib thiab lwm yam.

High magnetic conductivity nplhaib

Sib nqus nplhaib inductor , yuav tsum hais Ni-Zn ferrite magnetic nplhaib. Cov nplhaib sib nqus tau muab faib ua Ni-Zn thiab mn-Zn raws li cov khoom siv. Cov permeability ntawm Ni-Zn ferrite rings txawv ntawm 15 mus rau 2000. Cov ntaub ntawv siv feem ntau yog Ni-Zn ferrites nrog permeability ntawm 100 thiab 1000. Raws li kev faib tawm permeability, Ni-Zn ferrites muab faib ua cov ntaub ntawv permeability tsawg. Lub permeability ntawm mn-Zn ferrite sib nqus rings feem ntau yog ntau tshaj 1000, yog li cov hlau nplaum ua los ntawm mn-Zn ferrites hu ua high conductivity rings.

Ni-Zn ferrite rings feem ntau yog siv los tiv thaiv kev cuam tshuam hauv txhua yam ntawm cov xov hlau, Circuit Court board kawg thiab cov khoom siv hauv computer. Mn-Zn ferrite rings tuaj yeem siv los ua cores, taub hau thiab kav hlau txais xov rods ntawm cov inductors , transformers thiab lim. Feem ntau, qhov qis dua qhov permeability ntawm cov khoom, qhov dav siv ntau zaus; qhov siab dua qhov permeability ntawm cov khoom, qhov nqaim dua qhov siv tau ntau zaus.

Hlau hmoov core magnetic nplhaib

Hlau hmoov core yog ib lo lus nrov rau cov khoom siv hlau nplaum hlau oxide, uas yog siv rau hauv hluav taws xob circuits los daws qhov teeb meem ntawm electromagnetic compatibility (EMC). Hauv kev siv tswv yim, ntau yam ntawm lwm yam tshuaj yuav raug ntxiv raws li qhov sib txawv ntawm kev lim dej hauv cov kab sib txawv.

Thaum ntxov sib nqus hmoov core yog ib tug "bonded" hlau mos magnetic core pressed los ntawm hlau-silicon-aluminium alloy magnetic hmoov. Hom hlau-silicon-aluminium magnetic hmoov core no feem ntau hu ua "hlau hmoov core". Nws cov txheej txheem kev npaj raug raws li hauv qab no: cov hmoov sib nqus ntawm Fe-Si-Al alloy yog flattened los ntawm pob milling thiab coated nrog insulating txheej los ntawm cov tshuaj, ces li ntawm 15wt% binder yog ntxiv, sib tov tusyees, molded thiab solidified, thiab cov khoom. yog tsim los ntawm kev kho cua sov (kev ntxhov siab) tom qab Z. Cov khoom siv "hlau hmoov core" cov khoom no tsuas yog ua haujlwm hauv 20kHz hmoov 200kHz. Vim hais tias lawv muaj ntau dua saturation flux ceev, zoo DC superposition yam ntxwv, magnetostrictive coefficient ze rau xoom, tsis muaj suab nrov, zoo zaus stability thiab siab ua hauj lwm-rau-tus nqi piv tshaj ferrites ua hauj lwm nyob rau hauv tib zaus band, lawv tau lug siv nyob rau hauv hluav taws xob. cov khoom 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 flux tsis tu ncua, thiab hauv zos demagnetization ua rau txo qis permeability.

Cov hmoov hlau ua haujlwm siab tau tsim los ntawm Z tsis ntev los no yog qhov sib 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 insulating txheej, thiab tus nqi ntawm binder yog heev. me me, yog li qhov sib nqus flux ceev tau zoo heev. Lawv ua haujlwm nyob rau hauv nruab nrab thiab qis zaus band hauv qab 5kHz, feem ntau yog ob peb puas hertz, uas yog, qis dua qhov ua haujlwm zaus ntawm Fe-Si-Al magnetic hmoov core. Lub hom phiaj kev lag luam yog los hloov cov ntaub ntawv silicon steel siv rau hauv lub cev muaj zog vim nws qhov poob qis, kev ua haujlwm siab thiab yooj yim los nqa tawm peb-seem tsim.

Fe-Si-Al magnetic nplhaib

Fe-Si-Al magnetic nplhaib yog ib lub nplhaib sib nqus nrog kev siv siab. Txhawm rau muab nws yooj yim, Fe-Si-Al yog tsim los ntawm Al-Si-Fe thiab muaj Bmax siab heev (Bmax yog qhov nruab nrab Z loj flux ceev ntawm qhov chaw hla ntu ntawm cov tub ntxhais.). Nws cov tub ntxhais poob qis qis dua li cov hlau hmoov hlau thiab cov flux siab, muaj qhov tsis tshua muaj magnetostriction (tsis muaj suab nrov), yog cov khoom siv hluav taws xob qis, tsis muaj thermal aging, tuaj yeem siv los hloov cov hmoov hlau hlau, thiab nws cov kev ua tau zoo. Nws ruaj khov heev ntawm qhov kub thiab txias.

Lub ntsiab yam ntxwv ntawm Fe-Si-Al Z yog tias nws muaj qis dua cov hmoov hlau hlau thiab muaj cov yam ntxwv zoo DC tam sim no. Tus nqi tsis yog Z siab, tab sis tsis Z qis, piv nrog cov hmoov hlau hlau thiab hlau nickel molybdenum.

Fe-Si-Al magnetic hmoov core muaj cov khoom sib nqus zoo heev, tsis muaj hluav taws xob poob thiab siab flux ceev. Nws muaj kev ntseeg siab xws li kub tsis kam, av noo thiab kev vibration tsis kam thaum siv nyob rau hauv qhov kub ntawm -55C ~ + 125C.

Nyob rau tib lub sijhawm, qhov dav permeability ntawm 60 txog 160 yog muaj. Nws yog qhov kev xaiv zoo tshaj plaws rau cov zis chokes, PFC inductors thiab resonant inductors ntawm kev hloov hluav taws xob, thiab muaj kev ua haujlwm siab-rau-tus nqi sib piv.

Cov saum toj no yog kev taw qhia txog kev sib raug zoo ntawm lub nplhaib hlau nplaum xim thiab cov khoom siv. Yog tias koj xav paub ntau ntxiv txog inductors, thov koj xav tiv tauj peb.