Koj yuav tsum paub cov ntsiab lus no txog hlau atomization hmoov ntau lawm!
Tso lus
Atomization yog hais txog kev siv tshuab ntawm pulverizing molten hlau rau hauv cov khoom me dua 150μm. Raws li qhov nruab nrab atomization thiab lub hauv paus ntsiab lus, nws tuaj yeem muab faib ua plaub pawg: dej atomization, roj atomization, plasma atomization, thiab ultrasonic atomization.
Kev faib tawm thiab kev siv hlau atomization hmoov ntau lawm
1. Dej Atomization
Cov txheej txheem ntawm kev tsim cov hmoov hlau siv dej atomization muaj keeb kwm ntev. Nyob rau hauv ancient sij hawm, tib neeg nchuav molten hlau rau hauv dej, ua rau nws tawg mus rau hauv zoo hlau hais, uas yog siv los ua raw khoom rau steelmaking. Qee tus neeg txawm nchuav cov hmoov txhuas ncaj qha rau hauv dej los ua cov hmoov txhuas. Lub hauv paus ntsiab lus ntawm kev siv dej atomization los tsim cov hmoov coarse alloy yog tib yam li cov lus hais saum toj no uas ua rau dej tawg molten hlau, tab sis nrog kev txhim kho tseem ceeb hauv pulverization efficiency. Cov txheej txheem ntws tau qhia hauv daim duab 1.
Daim ntawv thov: Dej atomization muaj qhov zoo ntawm cov txheej txheem luv luv, tus nqi qis, thiab tsim cov khoom pov tseg tsawg tsawg, ua rau nws tsim nyog rau kev tsim cov khoom qis - mus rau nruab nrab - cov khoom uas tus nqi yog ib qho kev txhawj xeeb tseem ceeb. Txawm li cas los xij, dej atomization tsim cov hmoov uas tsis muaj qhov tsis zoo thiab cov ntsiab lus oxygen siab, thiab nws tsis tuaj yeem siv rau cov khoom siv tshuaj lom neeg.
2. Gas Atomization
Cov txheej txheem roj atomization tuaj yeem piav qhia meej raws li hauv qab no: thaum lub caij nplooj zeeg dawb, cov tee hlau tau ua kom zoo thiab raug laminar fibrosis vim roj shearing thiab compression. Thaum cov tee dej tawm ntawm thaj chaw zoo atomization, lub siab sab nraud txo qis, ua rau nws tus kheej -zoo siab tawg vim qhov tsis txaus siab.
Ntawm ntau txoj kev ntawm cov khoom siv hmoov ntau lawm, roj atomization tso nyiaj rau 80% ntawm tag nrho. Gas atomization txoj kev tuaj yeem muab faib ua cov hom hauv qab no raws li cov khoom siv cua sov:
Hlau Atomization Hmoov Qhuav: Yam Koj Yuav Tsum Paub!
2.1 Vacuum Induction Melting Inert Gas Atomization Method (VIGA Method)
Vim muaj kev txwv nyob rau hauv cov khoom siv thiab cov crucibles, cov cua kub hauv lub tshuab nqus tsev induction melting feem ntau txwv rau qhov siab tshaj plaws ntawm 1500-1600 degree. Tsis tas li ntawd, kev siv cov ceramic crucibles thiab nozzles qhia cov impurities rau hauv cov hlau yaj, cuam tshuam rau cov purity ntawm cov hmoov hlau npaj . 2.2 Plasma Melting Induction Gas Atomization Method (PIGA Method)
Ua ntej, PIGA txoj kev siv lub plasma cua sov qhov chaw, yog li txhim kho kev ruaj ntseg thiab efficiency ntawm lub cua sov qhov chaw, tshwj xeeb tshaj yog rau high - kub kub. Thib ob, PIGA txoj kev siv dej -copper crucible txias. Thaum cov hlau molten ntws mus rau hauv kev sib cuag nrog dej -copper crucible txias, lub hauv paus hlau txheej tsim nyob rau hauv crucible nto, tiv thaiv kev sib cuag ncaj qha ntawm cov molten hlau ntws thiab cov tooj liab crucible phab ntsa, yog li txhim kho cov purity ntawm cov hmoov hlau npaj.
2.3 Plasma Torch Atomization Method (PA Method)
Txoj kev PA ua haujlwm los ntawm melting hlau hlau los ntawm kev ntxiv nws mus rau lub plasma cua sov qhov chaw ntawm ib tug npaum li cas los ntawm ib tug straightener. Tom qab ntawd cov kua hlau molten yog atomized los ntawm siab - cov pa roj. Cov hmoov npaj siv txoj kev PA muaj cov yam ntxwv ntawm kev ua haujlwm siab, siab purity, thiab cov ntsiab lus tsis tshua muaj oxygen. Txawm li cas los xij, vim tias nws cov khoom siv raw yog cov hlau, nws ua rau cov khoom siv raw khoom thiab txwv cov hmoov hlau uas tuaj yeem npaj tau.
2.4 Crucibleless Electrode Induction Melting Gas Atomization Method (EIGA)
Txoj kev EIGA siv lub pre- ua alloy pas nrig ua ib qho electrode. Lub rotating pas nrig electrode yog yaj thiab atomized los ntawm induction melting kauj thiab tswj ntsug pub ceev. Nws txoj hauv kev ua haujlwm qhia tau hais tias txoj kev EIGA muaj qhov zoo ntawm kev tshem tawm qhov xav tau ntawm cov ceramic crucible, txo cov impurities hauv tus tswv alloy, thiab txhim kho qhov purity ntawm atomized hmoov. Txawm li cas los xij, txoj kev EIGA kuj tseem muaj qhov tsis zoo: tus nqi ntawm cov khoom ua ntej- ua alloy pas nrig yog siab dua li cov hlau ingots, thiab qhov sib xws ntawm cov pas nrig alloy muaj qhov cuam tshuam loj rau cov tshuaj lom neeg ntawm cov hmoov atomized; tswj qhov melting tus nqi ntawm cov pas nrig hlau yog qhov nyuaj, yooj yim ua rau muaj kev cuam tshuam ntawm cov ndlwg thiab cov pas nrig tawg, ua rau muaj kev cuam tshuam ntawm cov yeeb nkab qhia.
3. Plasma Rotating Electrode Atomization Method
Plasma rotating electrode atomization (PREP) yog ib txoj kev npaj hmoov hlau ua raws li lub hauv paus ntsiab lus ntawm siab -ceev rotating centrifugal atomization ntawm electrode rods. Txoj kev no tuaj yeem tsim cov khoom qis -oxygen- cov ntsiab lus, tsis yog- nplaum, siab - cov hmoov nplej nrog qhov loj me ntawm 70-130 μm. Txawm li cas los xij, vim yog qhov xav tau ntawm kev sib hloov ceev ntawm cov electrode, nws tsis tuaj yeem tsim cov khoom loj ntawm siab -kev ua tau zoo spherical micropowders nrog cov particle loj me dua 45 μm. Cov hmoov ua los ntawm cov thev naus laus zis no muaj qhov zoo xws li cov dej ntws zoo, cov pa roj tsawg, thiab ob peb lossis tsis muaj satellite hmoov, thiab tau pom cov ntawv thov tseem ceeb hauv kev lag luam nuclear, aerospace, thiab biomedicine.
Txoj Cai Ua Haujlwm: Lub siab - kub plasma phom melts lub ntsej muag kawg ntawm lub siab - nrawm tig electrode pas nrig rau hauv cov yeeb yaj kiab ua kua. Cov yeeb yaj kiab ua kua tawg ua cov tee dej nyob rau hauv qhov kev txiav txim siab ntawm - ceev centrifugal quab yuam. Cov tee me me txias thiab ua kom khov rau hauv qhov chaw tsis muaj zog, tsim cov hmoov kheej kheej nyob rau hauv qhov kev txiav txim ntawm qhov nro. Lub hauv paus ntsiab lus qhia tau pom hauv daim duab 3.
Daim Ntawv Thov Kev Pom Zoo: Cov hmoov hlau ua los ntawm PREP thev naus laus zis tau siv dav hauv aerospace, shipbuilding, zog thiab tshuaj industries, siab - khoom tsim khoom, thiab biomedicine. Nyob rau hauv xyoo tas los no, nrog rau kev loj hlob ntawm kev lag luam tawm tshiab xws li hlau additive manufacturing technology, PREP thev naus laus zis tau pom cov ntawv thov kev cia siab vim muaj cov khoom zoo ntawm cov hmoov hlau uas nws tsim. Tom qab ntau xyoo ntawm txoj kev loj hlob, kuv lub teb chaws PREP thev naus laus zis tau ua kom muaj kev vam meej hauv cov hmoov zoo thiab cov cuab yeej muaj peev xwm. Txawm li cas los xij, nws tseem poob qab cov thev naus laus zis txawv teb chaws hauv thaj chaw xws li cov hmoov nplej zoo thiab kev npaj cov hmoov hlau refractory.
4. Ultrasonic Atomization Method
Ultrasonic atomization, raws li cov thev naus laus zis tshiab atomization, hloov lub zog ultrasonic rau cov kua kom atomized thiab tawg nws los ntawm kev sib cuag ncaj qha lossis tsis ncaj nrog lub taub hau lub cuab yeej ultrasonic. Cov hmoov txheej txheej txheem no tuaj yeem tau txais cov hmoov hlau kheej kheej nrog zoo sphericity thiab nqaim particle loj faib. Nws kuj muaj cov txiaj ntsig zoo xws li cov cuab yeej siv yooj yim thiab cov txheej txheem, kev tswj xyuas siab, thiab tus nqi qis, tshwj xeeb tshaj yog nyob rau hauv kev npaj siab -kev ua tau zoo spherical hlau hmoov nrog ib qho me me ntawm tsawg dua 20 μm.
4.1 Hu rau Ultrasonic Atomization Technology
Atomization Txoj Cai: Cov kua yuav tsum tau atomized yog ncaj qha nkag mus rau saum npoo ntawm ultrasonic transducer lub taub hau lub cuab yeej, tsim ib txheej kua nyias. Nyob rau hauv qhov kev txiav txim ntawm ultrasonic kev co, cov kua txheej nyias no ua rau saum npoo tsis muaj zog. Thaum lub amplitude ntawm cov kua tee dej ntawm qhov chaw siab tshaj qhov amplitude ntawm lub taub hau lub cuab yeej, cov tee dej yog ejected thiab atomized mus rau hauv me me droplets, raws li qhia nyob rau hauv daim duab 4. Thaum lub sij hawm atomization, lub thickness ntawm cov kua nyias txheej ho cuam tshuam rau cov nyhuv atomization, txwv cov huab hwm coj txaus tus nqi ntawm cov kua thiab yog li txwv qhov kev txhim kho ntawm atomization.
Daim ntawv thov Prospects: Hu rau ultrasonic atomization tshuab yog tsuas yog siv nyob rau hauv zus tau tej cov tsawg-melting- taw tes hlau hmoov. Piv nrog rau lwm txoj kev atomization, nws muaj peev xwm ua tau zoo dua ua nqaim -particle- loj spherical hmoov nrog ib qho me me ntawm ib ncig ntawm 20 μm. Txawm li cas los xij, txoj kev atomization no muaj kev txwv tseem ceeb hauv kev tsim cov siab - melting -point thiab corrosive hlau hmoov.
4.2 Tsis yog- Hu rau Ultrasonic Atomization Technology
Tsis yog-kev sib cuag atomization feem ntau yog muab cov kua rau atomized ntawm lub suab siab ntawm lub ultrasonic sawv yoj teb, raws li qhia hauv daim duab 5.
Lub tshuab tsis yog -hu rau ultrasonic atomization (USWA) technology, qhov twg cov kua yuav tsum tau atomized tsis tuaj rau hauv kev sib cuag nrog lub taub hau lub cuab tam, muaj qhov zoo tshaj plaws thaum atomizing molten hlau los yog lwm yam kua. Nws kuj boasts siab hmoov tawm los thiab atomization efficiency thaum npaj hlau hmoov nrog ib tug particle loj ntawm kwv yees li 10 μm.
Daim ntawv thov Prospects:
Kev tshawb fawb qhia tias tsis yog -kev sib cuag atomization tshuab muaj qhov zoo sib xws ntawm lwm cov txheej txheem atomization hauv kev npaj cov hmoov hlau los ntawm siab -viscosity melts. Txawm li cas los xij, cov cuab yeej no tseem tsis tau paub tab thiab tseem tsis tuaj yeem ua tau raws li qhov xav tau ntawm kev tsim khoom loj -scale Hoobkas. Muab nws cov txiaj ntsig tseem ceeb hauv kev tsim cov siab -melting-point, siab -viscosity, nplua- cov hmoov hlau hmoov, cov tshuab no tau npaj rau kev lag luam dav dav yav tom ntej.
Nrog rau kev tsim cov chaw tsim khoom xws li kev tsim khoom ntxiv, hmoov metallurgy, hmoov txhaj tshuaj molding, txheej txheej txheej txheej txheej, thiab 3D vuam tshuab, cov kev cai rau atomization txoj kev yuav ua kom nruj. Raws li atomization txoj kev txuas ntxiv hloov zuj zus thiab txhim kho, lawv yuav txaus siab rau qhov kev cia siab ntau dua.
