Cov Txheej Txheem Npaj thiab Daim Ntawv Thov Kev Cia Siab ntawm Dawb Fused Alumina Micropowder
Muaj ntau tus neeg yuav pom lub npe "dawb fused alumina micropowder"tsis paub thaum xub hnov nws. Txawm li cas los xij, yog tias peb hais txog kev sib tsoo lub xov tooj ntawm tes iav npog, polishing precision bearings, lossis cov ntaub ntawv ntim khoom chip, txhua tus yuav paub nws - kev tsim cov khoom no txhua tus vam khom cov hmoov dawb no uas tsis tseem ceeb. Cov tshuaj no tsis yog hmoov nplej; nws muaj qhov nyuaj siab thiab ruaj khov, khwv tau nws lub koob npe nrov ntawm "cov hniav lag luam" hauv ntiaj teb kev lag luam. Kev ua tiav micropowder-level processing xav tau kev ua haujlwm zoo heev.
I. Txheej Txheem Npaj: Ib Puas Lub Txuj Ci hauv Txheej Txheem Zoo
Kev npaj cov hmoov alumina dawb fused micropowder tsis yog tsuas yog ib qho teeb meem ntawm kev sib tsoo cov khoom loj xwb. Ib yam li kev npaj cov zaub mov Huaiyang zoo, txhua kauj ruam, los ntawm kev xaiv cov khoom xyaw mus rau kev ua noj, yuav tsum tau ua kom raug. Kauj ruam thawj zaug yog "xaiv cov khoom siv zoo." Cov khoom siv tseem ceeb rau kev npaj cov hmoov alumina dawb fused yog hmoov alumina kev lag luam, thiab qhov huv ntawm cov hmoov no txiav txim siab ncaj qha rau "keeb kwm" ntawm cov hmoov micropowder. Yav dhau los, qee lub Hoobkas siv cov khoom siv raw qis dua kom txuag tau nyiaj, ua rau cov hmoov me me nrog ntau yam tsis huv, uas yooj yim ua rau khawb thaum txhuam cov khoom ua haujlwm. Tam sim no, txhua tus neeg ntse dua thiab xav siv nyiaj ntau dua los yuav cov alumina huv siab dua li ua rau lawv lub koob npe nrov hauv cov theem tom ntej. Feem ntau hais lus, cov ntsiab lus alumina yuav tsum siab dua 99.5%, thiab cov khoom tsis huv xws li hlau thiab silicon yuav tsum tau tswj hwm nruj me ntsis.
Kauj ruam thib ob yog "smelting thiab crystallization," lub sijhawm "yug" ntawmdawb fused alumina. Cov hmoov alumina raug muab tso rau hauv lub cub tawg hluav taws xob, qhov twg qhov kub nce mus txog 2000 ℃ - qhov pom zoo nkauj heev. Lub ntsiab lus tseem ceeb hauv cov txheej txheem smelting yog tswj qhov txias. Kev txias sai dhau ua rau cov khoom siv lead ua tsis sib npaug; kev txias qeeb dhau cuam tshuam rau kev ua haujlwm zoo. Cov kws ua haujlwm txawj ntse tau vam khom kev paub dhau los mloog lub suab ntawm lub hluav taws xob arc thiab saib cov xim ntawm lub nplaim taws ntawm qhov qhib ntawm lub cub tawg kom txiav txim siab lub xeev hauv lub cub tawg. Txawm hais tias cov txheej txheem saib xyuas qhov kub ntse tam sim no muaj, qhov kev paub "kev sib koom ua ke ntawm tib neeg thiab lub cub tawg" no tseem muaj nqis heev.
Cov pob zeb siv lead ua los ntawm alumina dawb uas raug smelted, uas muaj qhov tawv thib ob tsuas yog pob zeb diamond xwb, yuav tsum tau "tsoo kom ntxhib" siv lub tshuab tsoo. Nyob rau theem no, cov khoom me me tseem zoo li cov pob zeb me me, tsis tau raug micronized.
Kauj ruam thib peb, "kev tsoo thiab kev ntsuas qib," yog lub hauv paus tseem ceeb ntawm cov thev naus laus zis thiab kuj yog qhov yooj yim tshaj plaws rau teeb meem.
Xyoo dhau los, ntau lub Hoobkas siv cov tshuab sib tsoo pob, vam khom kev cuam tshuam ntawm cov pob hlau los sib tsoo cov khoom me me. Txawm hais tias yooj yim, txoj kev no muaj ntau yam teeb meem: thawj zaug, nws yooj yim ua rau muaj kev sib kis ntawm hlau; qhov thib ob, cov duab ntawm cov khoom me me tsis xwm yeem, feem ntau yog lub kaum sab xis; thiab qhov thib peb, qhov faib ntawm cov khoom me me dav, nrog rau qee cov khoom me me heev thiab lwm cov ntxhib heev. Txoj kev no tau raug tshem tawm ntau hauv cov ntawv thov siab.
Tam sim no, txoj kev siv dav dav yog kev siv tshuab cua tshuab. Lub hauv paus ntsiab lus yog qhov nthuav heev: cov khoom me me raug ua kom nrawm los ntawm cov cua ceev ceev, ua rau lawv sib tsoo thiab sib txhuam, yog li ntawd lawv tsoo. Tag nrho cov txheej txheem tshwm sim hauv lub kaw lus kaw, tsis muaj cov khoom tsis huv. Qhov tseem ceeb tshaj, los ntawm kev kho qhov siab ntawm cov cua thiab qhov ceev ntawm lub tshuab faib tawm, qhov loj me ntawm cov khoom kawg tuaj yeem tswj tau meej heev. Thaum ua tiav zoo, cov khoom me me lossis ze li ntawm cov khoom me me tuaj yeem tau txais, nrog kev ntws zoo, ua rau lawv tsim nyog rau kev ua kom raug. Txawm li cas los xij, cov tshuab cua tshuab tsis yog panacea. Kev hnav khoom siv tuaj yeem ua rau muaj kev sib kis ntawm cov hlau, thiab qhov tseeb ntawm lub log faib tawm txiav txim siab qhov dav ntawm qhov loj me ntawm cov khoom me me. Kuv tau mus xyuas ib lub tuam txhab ua tau zoo uas lawv cov log ntsuas raug kuaj xyuas qhov puag ncig txhua lub lim tiam siv cov cuab yeej ua haujlwm raug; txhua qhov kev hloov pauv me me raug kho tam sim ntawd lossis hloov. Tus thawj tswj hwm tsim khoom hais tias, "Nws zoo li lub log tsheb; yog tias qhov sib npaug dynamic tsis ua haujlwm, lub tsheb yuav tsis khiav zoo."
Kauj ruam kawg yog "kev tshem tawm cov khoom tsis huv thiab kev kho qhov chaw." Cov hmoov uas raug tsoo yuav tsum tau ntxuav nrog kua qaub lossis kev kho kub siab kom tshem tawm cov hlau dawb thiab cov khoom tsis huv ntawm qhov chaw. Rau qee qhov kev siv tshwj xeeb, kev hloov kho qhov chaw kuj tseem xav tau - piv txwv li, txheej nrog tus neeg sawv cev silane coupling kom cov hmoov tuaj yeem tawg ntau dua hauv cov resins lossis xim, tiv thaiv kev sib sau ua ke. Thoob plaws hauv tag nrho cov txheej txheem, koj yuav pom tias los ntawm cov hlau mus rau hmoov, txhua kauj ruam yog kev tawm tsam tiv thaiv qhov nyuaj, kev huv, thiab qhov loj me ntawm cov khoom. Txhua qhov luv luv hauv cov txheej txheem yuav thaum kawg pom tseeb hauv kev ua tau zoo ntawm cov khoom.
II. Kev Npaj Siv: Ib Theem Loj rau Cov Hmoov Me Me
Yog tias cov txheej txheem npaj yog "kev txhim kho cov txuj ci sab hauv," ces cov neeg thov kev pab yog "kev mus rau hauv ntiaj teb." Lub ntiaj teb rau cov hmoov alumina dawb fused tab tom loj hlob zuj zus.
Theem tseem ceeb thawj zaug yog qhov tseebpolishing thiab sib tsoo. Qhov no yog nws lub zog ib txwm muaj, tab sis qhov yuav tsum tau ua kom ntau zuj zus. Piv txwv li, kev txhuam cov iav xov tooj ntawm tes, sapphire substrates, thiab silicon wafers tam sim no xav tau qhov roughness ntawm qhov nanometer theem. Qhov no tso cov kev cai nruj rau cov hmoov alumina dawb fused: qhov loj me ntawm cov khoom yuav tsum sib xws heev (D50 tswj hwm nruj me ntsis), tsis muaj cov khoom loj ua rau muaj teeb meem; cov khoom yuav tsum muaj qhov nyuaj siab tab sis cov khoom "ntse tus kheej" tsim nyog - lawv yuav tsum muaj peev xwm nthuav tawm cov npoo ntse tshiab thaum hnav kom tswj tau qhov muaj peev xwm txhuam tas mus li; thiab lawv yuav tsum muaj kev sib raug zoo nrog cov polishing slurries.
Qhov thib peb muaj peev xwm ua lag luam yog cov khoom siv sib xyaw ua ke. Ntxiv cov hmoov av dawb fused alumina rau cov yas engineering, roj hmab, lossis cov khoom siv sib xyaw ua ke tuaj yeem txhim kho cov khoom siv tiv taus hnav, tawv, thiab thermal conductivity. Piv txwv li, qee qhov chaw tiv taus hnav hauv cov cav tsheb thiab cov casings ntawm cov khoom siv hluav taws xob siab kawg tab tom tshawb nrhiav daim ntawv thov no. Qhov tseem ceeb ntawm no yog qhov teeb meem "interface bonding" - cov micropowder thiab cov khoom siv matrix yuav tsum "sib txuas ruaj khov," uas coj peb rov qab mus rau qhov tseem ceeb ntawm cov txheej txheem kho qhov chaw. Qhov kev taw qhia thib plaub yog cov ntaub ntawv luam tawm 3D. Hauv cov thev naus laus zis luam tawm 3D xws li kev xaiv laser sintering (SLS), cov hmoov av dawb fused alumina tuaj yeem siv ua theem txhawb nqa, sib xyaw nrog cov hlau lossis cov hmoov ceramic, los luam tawm cov khoom tiv taus hnav nrog cov duab nyuaj. Qhov no nthuav tawm cov teeb meem tshiab rau qhov ntws, qhov ceev ntawm cov khoom loj, thiab qhov loj me ntawm cov hmoov micronized - ib txheej hmoov sib xws yog qhov tseem ceeb kom ntseeg tau tias qhov tseeb ntawm kev luam ntawv.
III. Tej Yam Sib Tw thiab Yav Tom Ntej: Tej Yam Uas Yuav Tsum Tau Ua thiab Tej Yam Uas Yuav Tsum Tau Ua Kom Tiav
Txawm hais tias qhov kev cia siab zoo li yuav zoo, tseem muaj ntau yam teeb meem. Qhov teeb meem loj tshaj plaws yog cov khoom lag luam zoo. Piv txwv li, hauv cov hmoov dawb fused alumina micronized zoo siv rau kev txhuam chip (CMP), cov khoom lag luam hauv tsev tseem poob qis dua cov khoom lag luam zoo tshaj plaws los ntawm Nyiv Pooj thiab Lub Tebchaws Yelemees hauv kev ruaj khov ntawm cov khoom lag luam thiab kev tswj cov khoom loj. Tus thawj coj yuav khoom ntawm lub tuam txhab khoom siv semiconductor tau hais rau kuv tias, "Nws tsis yog tias peb tsis txhawb nqa cov khoom lag luam hauv tsev, nws yog tias peb tsuas yog tsis muaj peev xwm them taus qhov kev pheej hmoo. Yog tias ib pawg muaj teeb meem, tag nrho cov kab ntau lawm wafers yuav tsum tau muab pov tseg, ua rau muaj kev poob loj heev."
Cov laj thawj tom qab qhov no nyuaj heev: Ua ntej, cov khoom siv sib tsoo thiab qib siab tseem vam khom kev xa khoom tuaj; peb cov khoom siv tsis zoo thiab ruaj khov. Qhov thib ob, qhov tseeb ntawm kev tswj cov txheej txheem tsis txaus; feem ntau, nws tseem vam khom kev paub ntawm cov kws tshaj lij, tsis paub txog kev tswj hwm los ntawm cov ntaub ntawv thiab kev txawj ntse. Qhov thib peb, cov txheej txheem kuaj tsis txaus; piv txwv li, kev suav cov khoom me dua 0.5 micrometers thiab kev tshuaj xyuas sai ntawm cov khoom me me - cov khoom siv kuaj siab no feem ntau los ntawm txawv teb chaws. Txawm li cas los xij, tsis tas yuav xav phem dhau. Muaj ntau lub tuam txhab hauv tsev tab tom caum cuag. Qee tus tab tom koom tes nrog cov tsev kawm qib siab los kawm txog cov txheej txheem sib tsoo khoom hauv kev sib tsoo cua, ua kom zoo dua cov txheej txheem; lwm tus tab tom nqis peev ntau hauv kev tsim cov kab ntau lawm ntse, nrog rau txhua qhov tseem ceeb ntawm cov txheej txheem saib xyuas online thiab kho tau; lwm tus tseem tab tom tsim cov thev naus laus zis hloov kho tshiab kom ua rau cov hmoov micronized ua haujlwm zoo dua hauv ntau qhov xwm txheej thov.
Kuv ntseeg tias cov qauv kev loj hlob yav tom ntej yuav txav mus rau ntau qhov kev taw qhia: Kev Kho Kom Haum: Kev kho cov hmoov micronized nrog cov qhov loj me sib txawv, cov duab, thiab cov khoom nto raws li cov neeg siv khoom xav tau tshwj xeeb - lub sijhawm ntawm txoj hauv kev "ib qho loj-haum-txhua tus" tau dhau lawm. Kev Tsim Khoom Txawj Ntse: Ua tiav qhov kev ua kom zoo dua ntawm cov txheej txheem tsim khoom los ntawm Is Taws Nem ntawm Yam, cov ntaub ntawv loj, thiab kev txawj ntse dag kom ntseeg tau tias muaj kev ruaj khov. Kev Tsim Khoom Ntsuab: Txo kev siv hluav taws xob thiab kev ua qias tuaj, xws li kev txuag hluav taws xob hauv cov txheej txheem crushing thiab rov ua dua thiab rov siv cov hmoov pov tseg. Kev Tsim Kho Tshiab ntawm Daim Ntawv Thov: Kev koom tes tob dua nrog cov neeg siv khoom hauv qab los tsim cov ntawv thov hauv cov teb tshiab, xws li cov txheej txheem rau cov roj teeb sib cais tshiab thiab ua cov lim dej 5G ceramic.
Zaj dab neeg ntawmdawb fused aluminaHmoov micronized yog ib qho me me ntawm kev hloov pauv thiab kev txhim kho ntawm Tuam Tshoj txoj kev lag luam tsim khoom. Txij li thaum pib yooj yim thiab nyoos "zom thiab muag" mus rau qhov tam sim no "kev daws teeb meem system," txoj kev no tau siv sijhawm ntau xyoo. Qhov no qhia rau peb tias kev sib tw tiag tiag tsis yog nyob rau hauv kev muaj cov peev txheej, tab sis nyob rau hauv kev nkag siab tob txog cov ntaub ntawv thiab kev tswj hwm qhov kawg ntawm cov txheej txheem. Kev tswj hwm qhov loj me ntawm cov khoom me me, cov duab, thiab kev dawb huv ntawm txhua lub hmoov me me, thiab kev ua kom zoo dua txhua txoj kev tsim khoom, yuav tsum muaj kev ua siab ntev thiab, ntau dua li ntawd, kev xav tsis thoob.
Thaum peb cov hmoov alumina dawb uas tau fused micro-hmoov tsis yog tsuas yog ua kom lub iav saib ci xwb tab sis kuj tseem zom tau ib daim iav me me; tsis yog tsuas yog ua kom lub cib refractory muaj zog xwb tab sis kuj txhawb nqa cov thev naus laus zis tshiab, ces peb tau hloov pauv ntawm "kev tsim khoom" mus rau "kev tsim khoom ntse." Cov hmoov dawb no tsis yog tsuas yog nqa qhov tseeb ntawm kev lag luam xwb tab sis kuj muaj qhov tob thiab kev ua haujlwm ntawm lub teb chaws cov khoom siv yooj yim. Txoj kev tom ntej yog ntev, tab sis qhov kev taw qhia yog meej - kom tsom mus rau qib siab dua, kom them sai sai rau cov ntsiab lus, thiab siv cov kev daws teeb meem zoo.