Fused Silica Micropefer yog qhov siab {{purity, qis} Kuv yuav tsum tau siv tshuab hluav taws xob, cov khoom siv kho qhov muag, thiab precision Casting. Nws zoo heev siab - tsis kam, tshuaj lom neeg muaj txiaj ntsig zoo ntawm Fused Silica Micropiques yog qhov tseem ceeb. Kab lus no yuav nthuav qhia cov ntsiab lus tseem ceeb ntawm kev siv fused silica micropowder, suav nrog kev ua txuj ci, kev tswj hwm ib puag ncig, thiab kev tswj hwm ib puag ncig.
Pretreatment: Txhim Kho Cov Khoom Siv Purity thiab Dispersion
Fused Silica Micropowder yuav tsum muaj kev ua tiav nruj ua ntej siv los tiv thaiv kev cuam tshuam los ntawm kev ua tau zoo ntawm cov khoom kawg. Ua ntej, kev ua yeeb yam ntawm Silica Micropeder yuav tsum tau kuaj xyuas kom nws ua tau raws li cov kev xav tau (feem ntau yuav tsum tau muaj ntau yam ntawm ntau dua lossis sib npaug rau 99.9%). Thib ob, vim tias silica micropowder hais tau zoo heev (feem ntau yog cov micrometers lossis txawm tias submicrometers), lawv tau nquag mus rau hauv hluav taws xob thiab av noo. Yog li no, kom kom qhuav kom pom zoo ua ntej siv. Lub ziab kub yog feem ntau tswj hwm ntawm 100-120 degree, thiab lub sijhawm qhuav yog nyob ntawm cov av noo noo nyob hauv qab 0.1%.
Ib qho ntxiv, txhawm rau txhim kho cov dispersion ntawm Silica hmoov hauv cov khoom loj, ntsuas hauv qab no tuaj yeem ua haujlwm:
1. Mechanical Dispersion: Use a high-speed blender or planetary ball mill for pre-dispersion to prevent particle agglomeration.
2. Degification Degification: nyob ntawm daim ntawv thov cov ntaub ntawv yuav tsum tau kho nrog tus neeg sib txuas lus (xws li kev sib txuas nrog cov khoom sib xyaw nrog cov khoom cob lossis lwm yam kev sib xws.
3. Kev faib tawm thiab tshuaj ntsuam: yog tias nruj me nyuam cov khoom siv kom tsawg, airflow cov khoom siv yuav siv tau los ua kom ua kom zoo rau cov khaub ncaws.
Kev sib xyaw ua ke: tswj qhov sib ntxiv thiab kev sib xyaw
Qhov sib ntxiv piv ntawm fusion - qib sillica hmoov yuav tsum tau hloov kho raws li cov xwm txheej kev thov tshwj xeeb. Piv txwv li, hauv cov ntaub ntim ntim ntim ntim ntim ntim hauv hluav taws xob, cov hmoov nplej uas yog feem ntau ntxiv nyob rau ntawm 70% -90% tub lim dej txhawm rau txhim kho cov thermal conductivity thiab sab ruaj khov. Nyob rau hauv ceramics los yog txheej, tus muab tub lim tawm yuav qis dua (10% -50%) kom sib npaug cov khoom siv cov khoom siv.
Thaum lub sij hawm sib xyaw, cov kev qhia hauv qab no yuav tsum tau txiav txim siab:
1.Txoj kev ntxiv ntxiv: rau high - Kev muab cov ntawv thov, ib qho "sib ntxiv" kev pom zoo. Qhov no cuam tshuam ua ntej {{3} sib xyaw ua ke ntawm cov khoom sib xyaw ua ke nrog cov khoom xyaw uas seem los txhim kho cov khoom sib xyaw.
2.MixSing Order: Thaum siv nrog lwm cov tub ntxos (xws li alumina lossis boron nitride), finer silica hmoov yuav tsum tau sib xyaw ua ntej, ua raws li los ntawm cov khoom loj kom tsis txhob agglomeration.
3.4 {{{{{-}} helix} helt} helix} helt} helt} helt} Helix Kov Tov Khoom yog kom paub meej dispersion.
Kev tswj ib puag ncig: zam kev paug thiab hygroscopicity
Fusion - qib qib silica hmoov yog nkag siab rau ib puag ncig, tshwj xeeb yog cov av noo thiab av tswj. Vim nws cov npoo av siab, silica hmoov yooj yim nqus noo los ntawm huab cua, ua rau nws mus rau agglomerate thiab muaj peev xwm cuam tshuam rau kev ua tiav tom ntej. Yog li ntawd, nws raug nquahu kom ua haujlwm hauv cov chaw ib puag ncig hauv qab no:
1. Tsawg av noo ib puag ncig: qhov zoo tagnrho vaum yuav tsum qis dua 40%. Yog tias cov av noo huab cua siab dua, lub qhov cub kom qhuav lossis dej qhuav.
2. Hmoov av {- kev ua haujlwm pub dawb: rau kev siv hluav taws xob (xws li chav ua haujlwm huv (ISO chav kawm 5 lossis siab dua) kom tsis txhob muaj hmoov av paug.
3. Anti {{{{- hmoov zoo li qub, nws raug pom zoo kom tiv thaiv kev nqus cov pa hluav taws xob.
Kev Tswj Xyuas: Kev Ntxiv Cov Khoom Siv Lub Neej
Qhov chaw cia khoom ntawm Fusion -}} qib qib silica hmoov ncaj qha cuam tshuam rau nws ntev- sij hawm ua haujlwm. Cov hau kev cia khoom muaj xws li:
1. Kaw Cia Ua Si: Cov hmoov Silica tsis siv nyob rau hauv ib lub tshuab nqus tsev lossis cov huab ua pa taws los tiv thaiv oxidation thiab noo noo nqus.
2. Tswj kub: Cov pom zoo cia kub yog nruab nrab ntawm 10-30℃kom tsis txhob muaj qhov kub uas yuav ua rau muaj qhov ua kom cov khoom muag lossis agglomerate.
3. Thawj {{1- Nyob rau hauv, ua ntej-}) ua ntej kom tsis txhob ua tiav kev ua phem vim ntev} lub sij hawm cia.
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As a high-performance material, the effectiveness of fused-grade silica powder depends largely on proper handling techniques. Los ntawm kev tshawb nrhiav txuj ci, muaj kuab sib xyaw ua ke, tswj cov khoom nruj thiab tshuaj lom neeg muaj peev xwm ua tau zoo, yog li kev ntseeg tau zoo thiab muaj kev ntseeg siab ntawm cov khoom kawg. Hauv cov ntawv thov tiag tiag, nws raug nquahu kom ua kom tau cov phiaj xwm kev siv tau raws cov txheej txheem kev sim kom ua tiav cov txiaj ntsig kev ua kom tiav kom ua tiav.
