Karolo ea phetoho ea phofo ea alumina indastering ea abrasive
Ba sebelitseng lithupelong tsa abrasive ba tseba hore ke hlooho e bohloko ho sebetsana le thepa e boima bo phahameng - litlhase tse tsoang lebiling la ho sila, li-scratches mosebetsing, le ho theoha ha sekhahla sa lihlahisoa. Sefahleho sa mookameli se fifetse ho feta bokatlase ba pitsa. Ho fihlela phofo e tšoeu eaphofo ea aluminae ile ea potlakela lebaleng la ntoa, ea hulela indasteri e senyang nako e ncha. Kajeno, a re ke re bue ka hore na ke hobane'ng ha ntho ena e fetohile "mopholosi ea sila" oa indasteri ea kajeno!
1. Talente: "mohlabani oa hexagonal" indastering ea abrasive
Alumina phofo e tsoaloa e le mohlankana ea thata ea jang sekotlolo sena sa raese. Mehaho e meraro e thata-thata e senya lithaka tsa eona ka ho toba:
Ho thatafala ho phahame: Ho thatafala ha Mohs ho qala ho 9.0, ea bobeli ho ea ho daemane. Feme ea lisebelisoa e Guangdong e lekantsoeng: Ha u seha tšepe e lebelo le phahameng, bophelo ba mabili a silang a alumina ke makhetlo a 3 ho feta a li-abrasives tse tloaelehileng. Monghali-moholo Huang o ile a re ka sakerete molomong oa hae: “Ke ne ke chencha lebili le silang ka makhetlo a mararo ha ke seha tšepe ea motsoako, empa hona joale ke khona ho e etsa kaofela ntle le ho hema!”
Bohloeki bo hlollang: 99.6% α-Al₂O₃ content, litšila tsa tšepe li hatelloa ka tlase ho 0.01%. Shanghai Semiconductor Factory e ile ea lahleheloa ke tahlehelo: ho sebelisa li-abrasives tse nang le tšepe ho bentša liphaphatha, bokaholimo bo ne bo shebahala joaloka pockmarks ka mor'a likhoeli tse tharo; ho sebelisa phofo ea alumina ho phekola, ha e fetole 'mala esita le libakeng tsa ho hlapa ka acid.
Thermal stability e tšoana le ntja ea khale: melting point 2050℃, thermal extension coefficient e tlase joalo ka 4.8×10⁻⁶/℃. Feme ea rocket nozzle e Qingdao e e sebelisa ho sila li-alloys tse nang le mocheso o phahameng, 'me phetoho ea boholo tlasa tikoloho ea 1500 ℃ e ka tlase ho makhetlo a 6 bophara ba moriri.
Ho makatsang le ho feta ke hore e khona ho fetola sebopeho sa eona ka makhetlo a 72 - ho tloha ho likaroloana tse bataletseng tsa boemo ba micron ho ea ho nano-level spherical powder, e ka ba chitja kapa e bataletse kamoo u batlang, 'me e etselitsoe ka ho khetheha ho phekola mefuta eohle ea ho se mamele!
2. Ketsahalo ea phetoho: "Ts'ebetso ea boemo ba ho phatloha ha nyutlelie" mabaleng a mararo a maholo a ntoa
Semiconductor workshop: litsebo tsa ho khabisa tsa Nano-level
silicone wafer polishing: Flat alumina micropowder e thellisa holim'a sephaphatha sa silicon joalo ka ho thelelisa, 'me sekhahla sa ho khoa se theoha ka 70% ka ho sila ka ho thella ho fapana le ho thellisa ka tloaelo. Mong’a SMIC o ile a hooa: “Mosebetsi ona o bota ho feta oa ho rokelloa!”
Silicon carbide chip: Mokelikeli o benyang oa Nano-alumina o kenella ka har'a lekhalo la chip, mme ts'ebetso ea ho qhala mocheso e ntlafatsoa ke phello ea kotopo ea quantum, mme sekhahla sa chai se nyolohela ho 99.98%. Moenjiniere oa morero o ile a phaphatha setšoantšo sa microscope ea elektronike ’me a ithorisa: “Ho nepahala hona ho phahameng hoo esita le monoang o emeng holim’a sona o tla tlameha ho arohana!”
Sapphire substrate: Submicron alumina e bentša karoloana ea LED ho Ra<0.3nm, e boreleli ho feta seipone. Mookameli oa Dongguan Optoelectronics Factory o itse ka thabo: "Joale re etsa lilense tsa iPhone, 'me bahlahlobi ba Apple ha ba fumane phoso ho bona!"
Koetliso ea likoloi: 'molai oa litšenyehelo inthaneteng
Aerospace: litsebi tse phephetsang haholo
turbine blade mortise le tenon process:Alumina lebili la ho silae sebetsa ka alloy e thehiloeng ho nickel, 'me e ka mamella lihora tse 100 ntle le ho lahleheloa ke phofo ka lebelo la 2200 rpm. Mokhanni oa liteko Lao Li o ile a sheba sekirini sa leihlo ’me a hoeletsa: “Ka mokhoa ona oa ho hanyetsa, esita le Musk o tlameha ho fetisa lisakerete!”
Ho belisoa ha lebota la rocket: phofo ea alumina e koahetsoeng ka Nano e fokotsa ho ba boima ho Ra0.01μm, 'me ho sebetsa hantle ha mafura ho ntlafatsoa ka 8%. Moenjenere yo mogolo o ne a bua jaana ka matlho a mahibidu: “Selo seno se le sengwe fela se ka boloka ditone di le tharo tsa leokwane ngwaga le ngwaga!”
3. Ho loantšana ha tlhahiso ea malapeng: ho tloha "molala o khomaretsoeng" ho ea "ho loana ka letsoho"
Li-abrasives tsa alumina tsa malapeng e kile ea e-ba "pale e utloisang bohloko" - ho hanyetsa ho se sebetse hantle, lihlopha tse sa tsitsang, nano powder agglomeration joaloka sopho ea pimple, 'me maraka a holimo a ne a laoloa ke lik'hamphani tsa Amerika le tsa Japane13. Empa leqhubu la sebaka sa semiconductor le ile la qobella tlhaselo ea Jedi:
Tlhaselo ea bohloeki: Fektheri e Luoyang e hlahisitse taolo e bohlale ea mocheso oa sebōpi sa arc, 'me sekhahla sa phetoho ea α se fihlile ho 99.95%,' me bohloeki bo lekana le Showa Denko ea Japane.
Metaphysics ea boholo ba likaroloana: Likhamphani tsa Zhejiang li sebelisa lihlopha tsa turbine tsa AI ho laola kabo ea boholo ba karolo ka har'a ± 0.1μm. Bareki ba Makorea ba ile ba lahla mehlahare ea bona ha ba hlahloba thepa: "Boitsebiso bona bo nepahetse ho feta sebui!"
Ho tsoaloa hape ka litšila: Shandong base ba silakanya le ho hloekisa litšilamabili a ho sila, 'me karolelano ea motsoako e fokotsehile ho 30%,' me litšenyehelo li fokotsehile ka 40%. Motsamaisi oa setsi sa thuto, Lao Zhou, o ile a tšeha a ba a khalemela: “Lithōle tse neng li lahleloa ka tahlehelo, joale li bohlokoa ho feta thepa e ncha!”
4.Lebala la ntoa nakong e tlang: mekhoa e meraro e meholo e tsitsitse
Taolo ea boemo ba Nano: Laboratori ea Hefei e hlahisitse theknoloji e ntšo - thekenoloji ea deposition ea atomic layer ho beha "lihlomo" holim'a li-powders tse nyane le ho rarolla bothata ba agglomeration. Mofuputsi o ile a phahamisa sampole mme a ithorisa: "Joale ho belisoa ha chip ho bonolo ho feta ho tlotsa boka!"
Green Revolution: Semela sa Chongqing se sebelisa mokhoa oa ho khutlisa asiti ea litšila ho fokotsa ho tsoa ha lithane tse 300 tsa litšila tse kotsi selemo se seng le se seng. Batho ba Lefapha la Tšireletso ea Tikoloho ba ile ba tla ho tla etela ’me ba fana ka menoana e metona: “Le tlil’o lahla setsi sa ho hloekisa likhoerekhoere!”
Lisebelisoa tse bohlale tsa ho sila: Feme e Zhengzhou e kentse sensor ea khatello holim'a lebili la ho sila ho lokisa maemo a ho sila ka nako ea nnete. Xiao Liu, setsebi se tsoetsoeng ka bo-1990, o ile a thaepa k'homphieutheng 'me a ithorisa: "Joale ho lokisa maemo ho bonolo ho feta ho bapala lipapali, 'me sekhahla sa chai se fihlile ho 99.8%!"