Tam sim no, cov khoom siv sib nqus tas li yog ferrite hlau nplaum,NdFeb hlau nplaum, SmCo hlau nplaum, Alnico hlau nplaum, roj hmab hlau nplaum thiab lwm yam.Cov no kuj yooj yim mus yuav, nrog rau kev ua tau zoo (tsis tas ISO qauv) xaiv los ntawm.Txhua yam ntawm cov hlau nplaum saum toj no muaj nws tus yam ntxwv thiab daim ntawv thov sib txawv, cov lus qhia luv luv yog raws li hauv qab no.
Neodymium hlau nplaum
NdFeb yog cov hlau nplaum uas tau siv dav thiab txhim kho sai.
Neodymium hlau nplaum yog dav siv los ntawm kev tsim kho rau tam sim no, tab sis kuj muaj ntau tshaj 20 xyoo.Vim nws cov khoom sib nqus siab thiab kev ua haujlwm yooj yim, thiab tus nqi tsis siab heev, yog li daim ntawv thov teb tau nthuav dav sai.Tam sim no, kev lag luam NdFeb, nws cov khoom siv hluav taws xob sib nqus tuaj yeem ncav cuag 50MGOe, thiab nws yog 10 npaug ntawm ferrite.
NdFeb kuj yog cov hmoov hlau metallurgy cov khoom lag luam thiab ua tiav zoo ib yam li samarium cobalt hlau nplaum.
Tam sim no, NdFeb lub siab ua haujlwm kub yog nyob ib ncig ntawm 180 degrees Celsius.Rau kev siv hnyav, nws feem ntau pom zoo kom tsis txhob siab tshaj 140 degrees Celsius.
NdFeb yog corroded yooj yim heev.Yog li ntawd, feem ntau ntawm cov khoom tiav yuav tsum tau electroplated los yog coated.Cov kev kho mob saum npoo av muaj xws li npib tsib xee plating (nickel-tooj liab npib tsib xee), zinc plating, aluminium plating, electrophoresis, thiab lwm yam. Yog tias koj ua hauj lwm hauv qhov chaw kaw, koj tuaj yeem siv phosphating.
Vim muaj cov khoom sib nqus siab ntawm NdFeb, nyob rau hauv ntau zaus, nws yog siv los hloov lwm yam khoom sib nqus los txo qhov ntim ntawm cov khoom.Yog tias koj siv cov hlau nplaum ferrite, qhov loj ntawm lub xov tooj ntawm tes tam sim no, kuv ntshai tsis tsawg tshaj li ib nrab ntawm lub cib.
Ob lub hlau nplaum saum toj no muaj kev ua haujlwm zoo dua.Yog li ntawd, qhov ntev ntev ntawm cov khoom yog zoo dua li ntawm ferrite.Rau cov khoom siv dav dav, qhov kam rau ua yog (+/-) 0.05mm.
Samarium Cobalt hlau nplaum
Samarium cobalt hlau nplaum, cov khoom xyaw tseem ceeb yog samarium thiab cobalt.Vim tias tus nqi ntawm cov ntaub ntawv yog kim, samarium cobalt hlau nplaum yog ib hom kim tshaj plaws.
Cov khoom siv hluav taws xob sib nqus ntawm samarium cobalt hlau nplaum tam sim no tuaj yeem ncav cuag 30MGOe lossis siab dua.Tsis tas li ntawd, samarium cobalt hlau nplaum yog cov coercive thiab high-temperature resistant, thiab nws yuav siv tau rau kub txog li 350 degrees Celsius.Yog li ntawd nws yog irreplaceable nyob rau hauv ntau daim ntawv thov
Samarium cobalt hlau nplaum belongs rau hmoov metallurgy khoom.Cov tuam txhab lag luam dav dav raws li qhov loj thiab cov duab ntawm cov khoom tiav xav tau, kub hnyiab rau hauv ib lub voj voog dawb, thiab tom qab ntawd siv lub pob zeb diamond hniav txiav rau qhov loj ntawm cov khoom tiav.Vim tias samarium cobalt yog hluav taws xob conductive, nws tuaj yeem raug txiav tawm.Raws li txoj cai, samarium cobalt tuaj yeem txiav rau hauv cov duab uas tuaj yeem txiav linearly, yog tias cov hlau nplaum thiab qhov loj dua tsis suav nrog.
Samarium cobalt hlau nplaum muaj zoo heev corrosion kuj thiab feem ntau tsis tas yuav tsum tau anti-corrosion plating los yog txheej.Tsis tas li ntawd, samarium cobalt hlau nplaum yog nkig, nws yog ib qho nyuaj rau kev tsim cov khoom me me los yog nyias phab ntsa.
Alnico hlau nplaum
Alnico hlau nplaum muaj casting thiab sintering ob txoj kev sib txawv.Hauv tsev tsim ntau casting Alnico.Cov khoom siv hluav taws xob sib nqus ntawm Alnico hlau nplaum tuaj yeem mus txog 9MGOe, thiab muaj qhov tshwj xeeb loj yog qhov kub tsis kam, ua haujlwm kub tuaj yeem ncav cuag 550 degrees Celsius.Txawm li cas los xij, Alnico hlau nplaum yog yooj yim heev rau demagnetize nyob rau hauv ib qho inverted magnetic teb.Yog tias koj thawb ob lub Alnico hlau nplaum nyob rau hauv tib qho kev taw qhia (ob N's lossis ob S's) ua ke, thaj chaw ntawm ib qho ntawm cov hlau nplaum yuav raug tshem tawm lossis thim rov qab.Yog li ntawd, nws tsis haum rau kev ua hauj lwm nyob rau hauv ib tug inverted magnetic teb (xws li lub cev muaj zog).
Alnico muaj lub siab tawv thiab tuaj yeem ua hauv av thiab xaim txiav, tab sis ntawm tus nqi siab dua.Cov khoom siv dav dav ntawm cov khoom tiav, muaj ob hom kev sib tsoo zoo lossis tsis sib tsoo.
Ferrite Magnet / Ceramic Magnet
Ferrite yog ib hom nonmetallic magnetic khoom, tseem hu ua magnetic ceramics.Peb muab ib lub xov tooj cua sib cais, thiab cov hlau nplaum horn hauv nws yog ferrite.
Cov khoom sib nqus ntawm ferrite tsis siab, cov khoom siv hluav taws xob sib nqus tam sim no (ib qho ntawm qhov ntsuas qhov ua tau zoo ntawm cov hlau nplaum) tuaj yeem ua 4MGOe siab dua me ntsis.Cov khoom muaj txiaj ntsig zoo ntawm kev pheej yig.Tam sim no, nws tseem siv dav hauv ntau qhov chaw
Ferrite yog ceramic.Yog li ntawd, kev ua haujlwm machining zoo ib yam li cov ceramics.Ferrite hlau nplaum yog pwm tsim, sintering tawm.Yog tias nws yuav tsum tau ua, tsuas yog kev sib tsoo yooj yim tuaj yeem nqa tawm.
Vim yog qhov nyuaj ntawm kev siv tshuab, yog li feem ntau ntawm cov duab ntawm ferrite yog qhov yooj yim, thiab qhov siab ntev yog qhov loj.Cov khoom lag luam square zoo, tuaj yeem sib tsoo.Lub voj voog, feem ntau sib tsoo tsuas yog ob lub dav hlau.Lwm qhov ntev ntev yog muab raws li feem pua ntawm nominal qhov ntev.
Vim tias cov hlau nplaum ferrite tau siv rau ntau xyoo lawm, ntau lub tuam txhab tau npaj cov rings, squares thiab lwm yam khoom ntawm cov qauv thiab ntau thiab tsawg los xaiv.
Vim tias ferrite yog cov khoom siv ceramic, tsis muaj teeb meem corrosion.Cov khoom tiav tsis tas yuav tsum tau kho deg lossis txheej xws li electroplating.
Post lub sij hawm: Nov-22-2021