Ufa wobiriwira wa silicon carbide: chida chachinsinsi chowongolera magwiridwe antchito a kupukuta
Nthawi ya 2 koloko m'mawa, Lao Zhou wochokera ku workshop ya foni yam'manja anaponya chivundikiro chagalasi chomwe chinali chitangotuluka pamzere wopangira patebulo loyang'anira, ndipo phokoso linali lolimba ngati kuyatsa zipolopolo. "Taonani! Ndi gulu la khumi! Peel ya lalanje ndi chifunga. Oyang'anira a Apple afika mawa. Kodi chinthuchi chingaperekedwe?!" Magazi m'maso mwake anali ofiira kuposa kuwala kwa chizindikiro pamakina. Li, yemwe anali chete pakona, pang'onopang'ono anakankhira chidebe cha ufa wobiriwira wakuda, "Yesani 'wamisala wobiriwira' uyu, ndiye wosangalatsa kwambiri kuphwanya mafupa olimba." Patatha masiku atatu, gulu loyamba la zinthu zoyenera linanyamulidwa usiku wonse. Lao Zhou anagwira chidebe chaufa wobiriwirandipo anamwetulira kuti: “Kamnyamata kakang'ono akakayika mtima kwambiri kangapulumutse miyoyo!” Mu nkhondo yolimbana ndi nthawi,ufa wobiriwira wa silicon carbide (SiC)ndi mankhwala amphamvu komanso ogwira ntchito bwino omwe amachiza mitundu yonse ya "osakhoza kupukutidwa" ndi "osakhoza kupukutidwa".
Ufa wobiriwira wa silicon carbide, wotchedwa "kaboni wobiriwira” kapena “GC"Padziko lonse lapansi. Si mchenga wamba, koma munthu wolimba mtima "woyengedwa" mu ng'anjo yamagetsi ya madigiri opitilira 2000 yokhala ndi zinthu monga mchenga wa quartz ndi petroleum coke. Ili ndi thupi labwino: Kulimba kwa Mohs kuli kokwera kufika pa 9.2-9.3. Ndi kolimba pang'ono kuposa "corundum yoyera "Msuweni wanga" ndipo wachiwiri pambuyo pa diamondi. Chodabwitsa kwambiri ndi "zovala zake zobiriwira" - makristalo oyera kwambiri a silicon carbide, okhala ndi m'mbali zakuthwa ndi ngodya, komanso okwiya mwachangu komanso mwaukali. Ngati corundum yoyera ndi "mbuye wopukutira" wodekha, ndiye kutikabide wobiriwira wa silikonindi "kapitawo wogwetsa" yemwe ali ndi mbewa yaying'ono, yodziwika bwino pakuluma mafupa olimba, ndipo kugwira ntchito kwake n'kodabwitsa.
Mtengo wake uli mu mzimu wa "mwachangu, wolondola, komanso wopanda chifundo":
1. Kuluma "mafupa olimba": kusamala kwambiri mitundu yonse ya kusamvera
Galasi la foni yam'manja (Corning Gorilla), galasi la wotchi ya safiro, wafer wa silicon imodzi, ceramic substrate… “Ma projekiti a nkhope” awa amakampani amakono ndi olimba komanso ofooka kuposa ena. Zovala wamba sizigwira ntchito kapena kuswa m'mbali ngati mphamvu zambiri zigwiritsidwa ntchito. M'mbali zakuthwa za ufa wobiriwira wa silicon carbide (monga ma chisel osawerengeka pamlingo wa microscopic), kuphatikiza ndi kuuma kwake kwakukulu, zimamulola kuti “adule” pamwamba pa zinthu zolimba komanso zofooka mwamphamvu komanso mokhazikika. Imatha kuswa zinthu mwachangu, m'malo mozilima ngati zodula kuti iwononge kwambiri. Kupukuta chivundikiro cha foni yam'manja? Imatha kupyapyala "mapiri" omwe ali pamwamba pa galasi popanda kugwiritsa ntchito "zigwa" zomwe zili pafupi nayo, kuwirikiza kawiri mphamvu yake mwachindunji, komanso kapangidwe ka peel ya lalanje? Ayi!
2. Kudula "mpeni wofulumira": nthawi ndi ndalama
Pa mzere wopanga ma crystal panel a TFT-LCD, sekondi iliyonse yopera ndi kupukuta m'mphepete mwa galasi lalikulu imakhudzana ndi mphamvu yopangira. "Liwiro" la ufa wobiriwira wa silicon carbide limalembedwa m'majini ake. Tinthu take si tolimba komanso towala kokha, komanso modabwitsa timadzinola tokha - tinthu tosalimba timadziphwanya tokha tikapanikizika, ndikuwulula m'mbali zatsopano zakuthwa kuti tipitirize kumenyana! Mosiyana ndi zinthu zina zofewa, zimakhala "zosalala" zikamapera, ndipo mphamvu yawo imatsika. Mphamvu iyi ya "kudzikonzanso" imalola kuti ikhale ngati nsomba m'madzi m'magawo ovuta komanso apakati opukuta, ndipo kuchuluka kwake kochotsa zinthu pa unit time (MRR) kuli patsogolo kwambiri kuposa opikisana nawo. Pambuyo poti fakitale ya photovoltaic silicon wafer yasintha kukhala slurry yobiriwira ya silicon carbide yokhala ndi tinthu tating'onoting'ono, mphamvu yochotsa m'mphepete mwa silicon wafer idakwera ndi 35%, ndipo mphamvu yopangira tsiku ndi tsiku ya mzere umodzi idatsitsidwa ndi zidutswa mazana ambiri - mu nyengo yoyika mwachangu, iyi ndi ndalama yeniyeni!
3. "Zabwino" mu rough: kulinganiza bwino pakati pa kuchita bwino ndi kulondola
Musaganize kuti “amisala obiriwira"Zingathe kuchita zinthu mosasamala. Pakupukuta bwino mawindo a safiro, kusankha kukula koyenera kwa tinthu (monga W7, W5 kapena ngakhale kosalala pambuyo poyesa bwino) ndi njira yobiriwira ya silicon carbide micropowder imasonyeza "kuuma pang'ono". Imatha kuchotsa bwino mikwingwirima yozama ndi zigawo zowonongeka pansi pa nthaka zomwe zatsala ndi njira yapitayi (monga kupukuta diamondi), kuyika maziko abwino ndikuchotsa zopinga pakupukuta bwino kwenikweni (monga kugwiritsa ntchito silica sol). Udindo uwu "wolumikiza wakale ndi wotsatira" ndi wofunikira kwambiri. Popanda izi kuti muchotse bwino "kuvulala kovuta", gawo lopukuta bwino lomwe limatenga nthawi yayitali lidzakulitsidwa kwambiri, ndipo kuchuluka kwa zokolola kudzakhala kovuta kutsimikizira. Izi zili ngati kumanga nyumba. Green silicon carbide ndi "wantchito waluso" yemwe amayika maziko mwachangu komanso mosavuta ndikumanga makoma onyamula katundu. Popanda izi, "ntchito yabwino" yopaka zojambulazo zagolide pambuyo pake idzakhala yopanda pake.
4. Kusewera ndi "kupukuta madzi": kukhazikika ndiyo njira yopitira patsogolo
Ufa wa silicon carbide wobiriwira uli ndi mphamvu zokhazikika za mankhwala (zopanda mphamvu) ndipo sizophweka kuchita ndi madzi kapena mafuta omwe amagwiritsidwa ntchito nthawi zambiri. Kodi izi zikutanthauza chiyani? Ufawu uli ndi kukhazikika bwino ndipo sungathe kuwonongeka, kukhazikika kapena kusonkhana mosavuta! Pa mzere wopukuta wokhala ndi mphamvu zambiri, magwiridwe antchito okhazikika a ufawu ndiye njira yopulumutsira. Taganizirani izi, ngati nthawi zina umakhala wokhuthala komanso woonda, ndipo tinthu tating'onoting'ono timalumikizana kuti titseke payipi, kodi mtengo wokolola ndi kukonza zida zidzakhala woipa bwanji?Mpweya Wobiriwira"Zimapangitsa anthu kukhala opanda nkhawa. Dothi lokonzedwa bwino limatha kuyendetsa bwino nthawi imodzi kapena kupitirira apo, zomwe zimachepetsa kwambiri kuchuluka kwa kutsekedwa kuti zisinthe magawo ndi kuyeretsa mapaipi. Lao Wu, woyang'anira kupanga fakitale yopangira zinthu zadothi, anati mosangalala: "Popeza dothi lobiriwira la silicon carbide linasinthidwa, ndimatha kukhala pansi ndikumwa tiyi wotentha panthawi yowunikira ntchito yausiku. Zinkangokhala ngati kuzimitsa moto!"
Mu nthawi ino yofunafuna kusalala ndi kuchita bwino,ufa wobiriwira wa silicon carbide micropowderyagwiritsa ntchito mphamvu zake zolimba za "nkhanza" kuti ipange dzina lake lodalirika komanso lothandiza kumbuyo kwa malo ambiri osalala ngati galasi - si ntchito yofatsa, koma "chida chachinsinsi" choyenera bwino kuti chiwongolere bwino kupukuta.