Ntsuab silicon carbide hmoov: riam phom zais cia los txhim kho polishing efficiency
Thaum ob teev sawv ntxov, Lao Zhou los ntawm lub xov tooj ntawm tes rov qab vaj huam sib luag rhiav tau pov lub iav npog uas nyuam qhuav tawm ntawm cov kab ntau lawm rau ntawm lub rooj tshuaj xyuas, thiab lub suab nrov zoo li qhov chaw tua hluav taws. "Saib! Nws yog lub thib kaum! Txiv kab ntxwv tev thiab pos huab. Apple cov neeg soj ntsuam yuav tuaj txog tag kis. Cov khoom no puas tuaj yeem xa tau?!" Cov ntshav hauv nws ob lub qhov muag yog redder dua li qhov taw qhia lub teeb ntawm lub tshuab. Li, uas nyob twj ywm nyob rau hauv lub ces kaum, maj mam thawb ib lub thoob ntawm ntsuab tsaus nti hmoov zoo tshaj, "Sim no 'ntsuab madman', nws yog qhov zoo siab tshaj plaws rau zom cov pob txha tawv." Peb hnub tom qab, thawj pawg ntawm cov khoom tsim nyog tau raug tshem tawm thaum hmo ntuj. Lao Zhou patted lub thoob ntawmntsuab hmoovthiab luag ntxhi hais tias: "Tus me tub kub siab no tuaj yeem cawm tau txoj sia!" Hauv kev sib ntaus sib tua ntawm polishing, uas yog kev sib tw tawm tsam lub sijhawm,ntsuab silicon carbide hmoov (SiC)yog cov tshuaj muaj zog thiab muaj txiaj ntsig uas tshwj xeeb kho txhua yam "tsis tuaj yeem zom" thiab "tsis tuaj yeem txhuam".
Ntsuab silicon carbide hmoov, hu ua "ntsuab carbon" los yog "GCNws tsis yog cov xuab zeb zoo tib yam, tab sis tus txiv neej tawv tawv "ua kom zoo" hauv lub qhov cub hluav taws xob ntau tshaj 2000 degrees nrog cov ntaub ntawv xws li quartz xuab zeb thiab roj av coke. Nws muaj lub cev zoo: Mohs hardness yog siab li 9.2-9.3. Nws yog me ntsis tawv dua nws "dawb corundum nkauj muam nraug nus" thiab thib ob tsuas yog pob zeb diamond xwb, Dab tsi yog qhov zoo tshaj plaws yog nws "cov khaub ncaws ntsuab" - cov ntshiab silicon carbide crystals, nrog cov npoo ntse thiab cov ces kaum, thiab lub siab ceev thiab hnyav.ntsuab silicon carbideyog "tus thawj coj rhuav tshem" tuav lub micro mace, tshwj xeeb hauv kev zom cov pob txha tawv, thiab nws cov txiaj ntsig zoo heev.
Nws tus nqi yog nyob rau hauv "ceev, raug, thiab ruthless" ntsuj plig:
1. Gnawing “cov pob txha tawv”: tshwj xeeb hauv txhua yam kev tsis mloog lus
Lub xov tooj ntawm tes iav (Corning Gorilla), sapphire saib daim iav, ib qho siv lead ua silicon wafer, ceramic substrate… Cov "ntsej muag tej yaam num" ntawm kev lag luam niaj hnub no nyuaj thiab tsis yooj yim dua ib leeg. Ordinary abrasives yuav tsis ua haujlwm lossis tawg cov npoo yog tias siv zog ntau dhau. Cov npoo ntse ntawm ntsuab silicon carbide hmoov (xws li suav tsis txheeb micro chisels ntawm qib microscopic), ua ke nrog nws tus kheej siab hardness, tso cai rau nws "txiav" saum npoo ntawm cov khoom tawv thiab tawv tawv thiab tsis tu ncua. Nws tuaj yeem tev cov khoom sai sai, tsis yog "plowing" nws zoo li qee qhov abrasives ua rau kev puas tsuaj tob. Polishing lub hau ntawm lub xov tooj txawb? Nws tuaj yeem ua rau "roob" sai sai rau ntawm iav qhov chaw yam tsis muaj "khiav" nyob ib sab ntawm nws, ua ob npaug ntawm kev ua haujlwm ncaj qha, thiab cov txiv kab ntxwv tev zoo nkauj? Tsis muaj!
2. Txiav "sai riam": lub sij hawm yog nyiaj
Ntawm TFT-LCD kua siv lead ua vaj huam sib luag cov kab ntau lawm, txhua qhov thib ob ntawm ntug kev sib tsoo thiab polishing ntawm cov iav loj loj muaj feem xyuam rau kev tsim khoom. Lub "ceev" ntawm ntsuab silicon carbide hmoov yog engraved nyob rau hauv nws cov noob. Nws cov khoom tsis yog tsuas yog tawv thiab ntse, tab sis kuj tseem ceeb rau nws tus kheej-ntse - blunt hais yuav ua rau lawv tus kheej nyob rau hauv siab, nthuav tawm cov npoo tshiab kom sib ntaus sib tua! Tsis zoo li qee cov abrasives mos, lawv ua "ntu" thaum sib tsoo, thiab lawv cov txiaj ntsig poob qis. Qhov kev muaj peev xwm "txhim kho nws tus kheej" no tso cai rau nws zoo li cov ntses hauv dej hauv cov txheej txheem ntxhib thiab nruab nrab polishing, thiab nws cov khoom tshem tawm tus nqi ib chav tsev (MRR) yog deb ua ntej ntawm nws cov neeg sib tw. Tom qab lub photovoltaic silicon wafer Hoobkas hloov mus rau ntsuab silicon carbide slurry nrog ib tug me me me me, qhov efficiency ntawm silicon wafer ntug tshem tawm tau nce los ntawm 35%, thiab cov niaj hnub muaj peev xwm ntawm ib kab yog squeezed tawm los ntawm pua pua ntawm daim - nyob rau hauv lub caij nplooj ntoos hlav installation, qhov no yog tiag tiag nyiaj!
3. "Zoo" hauv qhov ntxhib: qhov sib npaug ntawm qhov ua tau zoo thiab qhov tseeb
Tsis txhob xav tias "ntsuab madmenNyob rau hauv qhov tseeb sapphire qhov rais polishing, xaiv qhov zoo particle loj (xws li W7, W5 los yog txawm finer tom qab zoo grading) thiab mis nyuj silicon carbide micropowder qhia tau hais tias "lwm nyob rau hauv roughness". Cov kev cuam tshuam rau qhov zoo polishing tom ntej (xws li siv silica sol ). Yog tsis muaj nws, "kev ua haujlwm zoo" ntawm pasting kub ntawv nyiaj tom qab yuav tsis muaj dab tsi.
4. Ua si nrog "dej sib tsoo": kev ruaj ntseg yog txoj hauv kev mus ntev
Ntsuab silicon carbide micropowder muaj cov tshuaj muaj zog ruaj khov (inert) thiab tsis yooj yim rau kev hnov mob nrog cov dej uas nquag siv los yog roj-raws li polishing kua. Qhov no txhais li cas? Lub slurry muaj kev ruaj ntseg zoo thiab tsis yooj yim rau deteriorate, khom lossis agglomerate! Ntawm txoj kab polishing nrog qib siab ntawm automation, kev ua haujlwm ruaj khov slurry yog lub neej. Xav txog nws, yog tias cov abrasive qee zaum tuab thiab qee zaum nyias, thiab cov khoom sib txuas ua ke los thaiv cov raj xa dej, cov txiaj ntsig thiab cov khoom siv tu cov nqi yuav phem npaum li cas? “Ntsuab Carbon"ua rau tib neeg tsis muaj kev txhawj xeeb. Cov kev npaj slurry tuaj yeem ua haujlwm ua haujlwm ntev lossis ntev dua, txo cov naj npawb ntawm kev kaw kom kho qhov tsis zoo thiab cov kav dej huv huv. Lao Wu, tus saib xyuas kev tsim khoom ntawm precision ceramic bearing factory, tau hais nrog kev xav: "Vim tias qhov ruaj khov ntsuab silicon carbide slurry tau hloov, Kuv tuaj yeem zaum kawg zaum thiab haus dej tshuaj yej kub thaum hmo ntuj ua haujlwm. Nws yeej zoo li tua hluav taws!”
Nyob rau hauv no era ntawm nrhiav smoothness thiab efficiency,ntsuab silicon carbide micropowdertau siv nws "kev npau taws heev" lub zog nyuaj los kho nws tus kheej lub npe zoo thiab txhim khu kev qha tom qab suav tsis txheeb daim iav zoo li qhov chaw-nws tsis yog lub luag haujlwm maj mam, tab sis qhov tsim nyog tau txais txiaj ntsig zoo "ntxhiab riam phom" los txhim kho polishing efficiency.