I-silicon ye-carbide powder eluhlaza: isixhobo esiyimfihlo sokuphucula ukusebenza kakuhle kokupholisha
Ngentsimbi yesibini ekuseni, uLao Zhou ovela kwindibano yocweyo yephaneli yefowuni ephathwayo waphosa isigqubuthelo seglasi esasisandula kuphuma kumgca wemveliso kwitafile yokuhlola, kwaye isandi sasivakala ngathi sicima iziqhushumbisi. “Jonga! Yibhetshi yeshumi! Amaxolo a-orenji kunye nenkungu. Abahloli be-apile bazakufika ngomso. Ingaba le nto ingaziswa? Igazi ebelisemehlweni akhe lalibomvu kunelaatha yokukhanya kumatshini. ULi, owayethe cwaka ekoneni, wathi chu etyhala ibhakethi enomgubo ocolekileyo oluhlaza bumnyama, “Zama le ‘geza liluhlaza’, yeyona nto ibangela umdla ukucola amathambo aqinileyo.” Kwiintsuku ezintathu kamva, ibhetshi yokuqala yeemveliso ezifanelekileyo yahanjiswa ngenqwelomoya ngobusuku. ULao Zhou wambamba i-emele yeumgubo oluhlazayaye encumile: “Lo mfana unomsindo ngokwenene unokusindisa ubomi!” Kwithafa ledabi lokupholisha, olugqatso oluchasene nexesha,I-silicon eluhlaza ye-carbide powder (SiC)liyeza elinamandla kwaye elisebenzayo eliphatha ngokuthe ngqo zonke iintlobo "ezingakwaziyo ukucola" kunye "nokungenako ukupolisha".
I-silicon carbide powder eluhlaza, eyaziwa ngokuba "ikhabhoni eluhlaza” okanye “GC"Ehlabathini." Ayisosanti eqhelekileyo, kodwa umntu oqinileyo "ocociweyo" kwisithando sombane se-arc esingaphezu kwe-2000 degrees kunye nezixhobo ezifana nesanti ye-quartz kunye ne-petroleum coke. Inomzimba omhle: Ubunzima be-Mohs buphezulu njenge-9.2-9.3.corundum emhlophe umzala” kwaye okwesibini emva kwedayimani. Eyona nto imangalisayo “yimpahla yayo eluhlaza” – iikristale zesilicon carbide ezisulungeke kakhulu, ezinencam ezibukhali neekona, kunye nobushushu obukhawulezayo noburhabaxa.i-silicon carbide eluhlaza"yi-captain yokudiliza" ephethe i-mace micro, egxile ekukrabeni amathambo aqinile, kwaye ukusebenza kwayo kuyamangalisa.
Ixabiso layo ilele kumoya “wokukhawuleza, ochanekileyo, nongenalusini”:
1. Ukugragrama “amathambo aqinileyo”: ukugxila kuzo zonke iintlobo zokungathobeli
Iglasi yefowuni ephathwayo (i-Corning Gorilla), isipili sokubukela isafire, icrystal silicon wafer enye, i-ceramic substrate… Ezi "projekthi zobuso" zoshishino lwangoku zinzima kwaye zibuthathaka ngakumbi kunezinye. Iibrasives eziqhelekileyo aziyi kusebenza okanye zaphule imiphetho ukuba kusetyenziswe amandla amaninzi. Imiphetho ebukhali ye-silicon carbide powder eluhlaza (njengezitshixo ezincinci ezingenakubalwa kwinqanaba le-microscopic), kunye nobunzima bayo obuphezulu, zivumele ukuba "zinqumle" umphezulu wezinto ezinzima kunye neziqhekezayo ngokukrakra nangokuzinzileyo. Iyakwazi ukukhupha ngokukhawuleza izinto, endaweni "yokulima" njengamanye ama-abrasives ukwenza umonakalo onzulu. Ukucoca uqweqwe lwefowuni ephathwayo? Iyakwazi ukukhawuleza "iintaba" kwindawo yeglasi ngaphandle kokubandakanya "iintlambo" ezisecaleni kwayo, ngokuphindwe kabini ukusebenza kakuhle, kunye nokuthungwa kwe-orange peel? Hayi!
2. Ukusika “imela ekhawulezayo”: ixesha yimali
Kumgca wokuvelisa ipaneli yekristale ye-TFT-LCD, yonke isekhondi nganye yokusila kunye nokupholishwa kwe-substrate yeglasi enkulu inxulumene nomthamo wemveliso. "Isantya" se-silicon carbide powder eluhlaza sikrolwe kwimizila yayo. Iingqungquthela zayo azikho nje nzima kwaye zibukhali, kodwa ziphinde zizenzele ngokumangalisayo - iinqununu ezinqabileyo ziya kuziqhekeza phantsi koxinzelelo, ziveze imiphetho ebukhali yokuqhubeka nokulwa! Ngokungafaniyo nezinye iibrasives ezithambileyo, ziba “gudileyo” ngelixa zisila, kwaye ukusebenza kwazo kakuhle kuyehla. Olu buchule "lokuzihlaziya" luvumela ukuba lufane nentlanzi emanzini kwizigaba ezinqabileyo kunye neziphakathi zokupholisa, kwaye izinga layo lokususwa kwezinto eziphathekayo ngexesha leyunithi (MRR) lide kakhulu kunabo bakhuphisana nabo. Emva kokuba i-photovoltaic silicon wafer factory yatshintshela kwi-silicon carbide slurry eluhlaza kunye nobukhulu besuntswana elithile, ukusebenza kakuhle kwe-silicon wafer edge ekususeni kunyuke ngama-35%, kwaye umthamo wemihla ngemihla wemveliso yomgca omnye ukhutshwe ngamakhulu eziqhekeza - kwixesha lofakelo lokukhawuleza, le yimali yokwenene!
3. "Intle" kwi-rough: ibhalansi ethambileyo phakathi kokusebenza kakuhle kunye nokuchaneka
Sukucinga ukuba “amageza aluhlazaKwifestile yesafire echanekileyo yokupholisha, ukukhetha ubungakanani besuntswana elilungileyo (elifana ne-W7, W5 okanye licoleke ngakumbi emva kokuhlelwa kakuhle) kunye nefomyula yesilicon ecocekileyo ye-carbide micropowder ibonisa "ebuthathaka phantsi koburhabaxa". Ukupholishwa kokwenyani okulandelayo (okufana nokusebenzisa i-silica sol) kubalulekile ukuba ngaphandle kwayo ukususa ngokufanelekileyo "ukulimala kanzima", inyathelo elithatha ixesha lokupholisha liya kwandiswa kakhulu, kwaye isivuno siya kuba nzima ukuqiniseka wona, “umsebenzi omhle” wokuncamathelisa ifoyile yegolide kamva uya kuba lilize.
4. Ukudlala "ngokugaya amanzi": ukuzinza yindlela yokugcina
I-silicon carbide micropowder eluhlaza ineempawu ezizinzileyo zeekhemikhali (inert) kwaye akukho lula ukusabela ngokusetyenziswa ngokuqhelekileyo kwamanzi-based based or oil-based polishing fluids. Ithetha ntoni le nto? I-slurry inozinzo oluhle kwaye akukho lula ukuwohloka, ukuhlala okanye ukuhlanganisana! Kumgca wokupolisha kunye neqondo eliphezulu lokuzenzekelayo, ukusebenza okuzinzileyo kwe-slurry yindlela yokuphila. Cinga ngako, ukuba i-abrasive ngamanye amaxesha ingqindilili kwaye ngamanye amaxesha ibhityile, kwaye amasuntswana adibana kunye ukuvala umbhobho, isivuno kunye neendleko zokulondolozwa kwezixhobo ziya kuba mbi kangakanani? “Ikhabhoni eluhlaza"Yenza abantu bangabinaxhala." I-slurry elungisiweyo inokuqhuba ngokuzinzileyo i-shift okanye nangaphezulu, inciphisa kakhulu inani lokuvalwa ukulungisa iiparamitha kunye nemibhobho ecocekileyo. ULao Wu, umphathi wemveliso yomzi-mveliso we-ceramic ochanekileyo, uthe ngeemvakalelo: "Ekubeni i-silicon carbide slurry ezinzileyo yatshintshwa, ekugqibeleni ndingahlala phantsi ndize ndiphuze ebusuku. Kwakufudula kufana nokucima umlilo!”
Kweli xesha lokusukela ukuguda nokusebenza kakuhle,i-silicon carbide micropowder eluhlazaisebenzise amandla ayo "obundlobongela obunobundlobongela" ukukrola igama layo elisebenzayo nelithembekileyo emva kweendawo ezingenakubalwa ezigudileyo ezifana nesipili-asiyondima ethambileyo, kodwa "isixhobo esiyimfihlo" esifanelekileyo sokuphucula ukusebenza kakuhle kokupholisha.