1. Mos sib nqus ferrite
Tam sim no, mos magnetic ferrite muaj ntau yam loj tshaj plaws thiab siv dav tshaj plaws. Raws li kev siv sib txawv, muaj txhua yam ntawm ferrites nrog muaj pes tsawg leeg thiab kev ua tau zoo ib yam, xws li nyob rau hauv ultra-high zaus ntau, sib nqus hlau lead hom hexagonal ferrite tuaj yeem xaiv, hauv lub suab, nruab nrab zaus, ntau zaus, feem ntau siv spinel. hom Mn-Zn ferrite, Ni-Zn ferrite, Li -- Zn ferrite, thiab lwm yam.
Kev tsim cov khoom sib nqus ferrite yuav tsum muaj siab purity ntawm raw cov ntaub ntawv thiab muaj tseeb piv. Cov txiaj ntsig tau pom tias thaum cov ntsiab lus ntawm Fe2O3 hauv Mn-Zn ferrite nyob nruab nrab ntawm 53 thiab 635 feem pua, qhov sib nqus sib nqus ntawm ferrite yog ze rau O, uas tsim nyog rau ntau zaus thiab muaj cov yam ntxwv zoo. Tsis tas li ntawd, qhov permeability thiab sib nqus induction nce nrog nce ZnO cov ntsiab lus. Thaum ZnO cov ntsiab lus siab tshaj 25 feem pua, cov permeability txo. Txhawm rau txhim kho cov khoom sib nqus thiab txhawb nqa sintering, admixtures tuaj yeem nkag rau hauv cov mis. Yog tias ib qho me me ntawm WO3 ntxiv, nws yuav pab cov qoob loo loj hlob thiab txhim kho permeability. Ntxiv CaO, SiO2 lossis CaO, Ba2O3 thiab CeO2 tuaj yeem txhim kho qhov kev tiv thaiv thiab txo qhov poob. Ntxiv CaO tuaj yeem txo qhov kub ntawm sintering thiab nce qhov ceev. Ntxiv ib qho me me ntawm P2O5 tuaj yeem txo qhov kub ntawm sintering.
Cov ntsiab lus ntawm Fe2O3 hauv Ni - Zn ferro - oxygen yuav tsum tau tswj nruj me ntsis, thiab cov ntsiab lus ntawm NiO yuav tsum tau nce ntxiv. Feem ntau hais lus, qhov siab dua qhov yuav tsum tau muaj, qhov siab dua cov ntsiab lus ntawm NiO, thiab cov ntsiab lus qis ntawm ZnO. Txhawm rau txo qhov kub thiab txias thiab txhim kho cov khoom sib nqus, cov khoom sib nqus xws li CaO, CuO, CoO thiab MnO tuaj yeem qhia. Lub formulation ntawm Ni-Zn mos magnetic ferrite haum rau siab zaus yog raws li nram no: Fe2O3 50 ~ 70 feem pua ZnO 5 ~ 40 feem pua NiO 5 ~ 40 feem pua.
Mos sib nqus ferrite sib sau, dav xim nrog; Qhuav nias, extrusion, grouting lossis kub tuag casting nrog rau isostatic nias, kub nias thiab tawg txoj kev. Txhawm rau kom txo qis ntawm cov khoom siv hluav taws xob, ua kom cov tshuaj tiv thaiv txaus, thiab txhim kho kev ua haujlwm sab hauv ntawm ferrite, feem ntau yuav tsum tau preburn ua ntej, qee qhov rau kub preburning, qee qhov kub preburning, thiab ib txhia txawm xav tau ob preburning. . Lub sintering ntawm ferrite feem ntau yog ua nyob rau hauv ib qho chaw oxidation ntawm 1150 ~ 1350 degree los ntawm kev siv silicon carbon pas nrig hluav taws xob kiln. Nyob rau hauv qhov hluav taws kub ntawm cov mos ferrite nrog siab permeability, tus nqi cua txias yuav tsum tau tswj kom txias nws maj mam thiaj li degrade lub internal kev nyuaj siab ntawm ferrite.
