Raw cov ntaub ntawv nyob rau hauv lub crucible, coj mus rau hauv tus account induced magnetic teb thiab qhov kub thiab txias nyob rau hauv melting txheej txheem ntawm qhov chaw faib, feem ntau induction coil nyob ib ncig ntawm lub crucible sab nraum sab, lub crucible nyob rau hauv lub sab ntawm magnetic teb yog qhov muaj zog tshaj, maj mam qaug zog. mus rau qhov chaw, tab sis sab crucible, hauv qab thiab qhov qhib yog txoj kev tseem ceeb ntawm cov cua sov, yog li lub crucible sab kub sab hauv nruab nrab, sab sauv thiab hauv qab ntawm nruab nrab kub yog tsawg, qhov kub tshaj plaws yog nyob rau hauv lub nruab nrab. Yog li ntawd, thaum loading qhov tsawg melting point ntawm me me ntawm cov khoom ntau ntom rau hauv qab ntawm lub lauj kaub; High melting point khoom, bulk khoom nyob rau hauv qis nruab nrab; Cov khoom siv ntau yam uas tsis tshua muaj melting point yog muab tso rau saum toj thiab loosened kom tiv thaiv bridging. Tam sim no, nruam melting thiab casting tshuab tau dav siv, nyob rau hauv uas raw cov ntaub ntawv yog successively ntxiv rau hauv lub crucible ntawm kub kub los ntawm lub feeding chamber. Txhawm rau tswj cov volatilization ntawm cov ntaub ntawv tsis tshua muaj hauv ntiaj teb, cov hlau ntshiab feem ntau yog ntxiv ua ntej kom yaj nws, thiab tom qab ntawd siab melting point hlau los yog alloys tau ntxiv zuj zus, thiab thaum kawg lub ntiaj teb tsis tshua muaj ntxiv.
2.Casting
Yuav kom ua tiav qhov xav tau quench nyhuv, cov tsoos ingot casting tshuab tau siv zog los txo cov thickness ntawm alloy ingot. Qhov zoo ntawm ingot casting yog cov cuab yeej siv qis, kev ua haujlwm yooj yim, thiab tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm cov hlau nplaum ntau lawm, tab sis qhov tsis zoo yog qhov tsis sib xws ntawm cov nplej loj thiab -Co lossis -Fe theem nag lossis daus. Lub sij hawm ntev kev kho cua sov ntawm alloy ingot ntawm qhov kub hauv qab lub melting point ntawm alloy yog pab kom tshem tawm -Co los yog -Fe theem, tab sis yuav ua rau tsub zuj zuj ntawm Nd-nplua nuj theem, uas yog tsis conducive rau optimization ntawm grain ciam theem faib ntawm sintered hlau nplaum.
Txhawm rau txo qhov tuab ntawm cov hlau nplaum ntxiv, ib qho "disc-scraper" qauv zoo ib yam li pancake tau tsim, yog li ntawd cov thickness ntawm alloy mus txog li 1cm, tab sis qhov nce ntawm cov alloy cheeb tsam coj teeb meem ntau rau qhov tau txais. lub peev xwm loj melting rauv. Lwm txoj kev txhim kho thev naus laus zis zoo yog mus rau qhov tsis sib xws, pib los ntawm cov cua txias heev ntawm kev nrawm nrawm Nd-Fe-B alloys, thiab sim txo qhov cua txias kom tsim cov cua txias ceev ceev crystalline alloys. Ib lub tshuab hu ua strip casting lossis SC tau tsim. Nws yog rau ncuav molten alloy rau ntawm ib tug ceev ceev rotating dej-txias hlau log los ntawm ib tug sib txawv channel kom tau alloy nyias slices nrog zoo tagnrho theem muaj pes tsawg leeg thiab kev ntxhib los mos thiab thickness ntawm 0.2-0.6mm. Kev faib tawm tsis tu ncua ntawm Nd-nplua nuj theem thiab inhibition ntawm -Fe txo tag nrho cov ntsiab lus tsis tshua muaj hauv ntiaj teb hauv cov qauv hlau ntawm cov sawb casting, uas yog qhov zoo kom tau txais cov hlau nplaum ua haujlwm siab thiab txo tus nqi ntawm cov hlau nplaum. Qhov tsis zoo yog tias, vim qhov txo qis ntawm qhov ntim feem ntawm Nd-nplua nuj theem, cov hlau nplaum yog nkig thiab nyuaj kom tiav piv nrog cov hlau nplaum tsim los ntawm ingot casting.
