Inani le-Green Silicon Carbide Micropowder ekukhiqizweni kwezinsimbi eziqondile
Uma ungena ezindaweni zokusebenzela zezinsimbi ezinembile, lapho umuntu engezwa khona ukushaya kwenhliziyo yakhe, umoya ugcwele iphunga elincane le-coolant. I-Old Master Li, ibheka phansi, ihlola ibhlogo lokulinganisa i-tungsten carbide esanda kugaywa enengilazi yokukhulisa, ibubula, “Kulezi zinsuku, lo msebenzi uya ngokuya uba nzima. Iphutha elilodwa, ngisho nengxenye eyodwa kweziyizinkulungwane eziyishumi zobubanzi bezinwele, lingaphula lonke ithuluzi!” Ngempela, inhliziyo yezinsimbi ezinembile—amalensi okukhanya, ama-ceramic bearings, nama-carbide probes—ngakunye kuyinselele enkulu: izidingo ezinobuthi, ezibuthakathaka, kodwa ezinobukhulu obufanayo ziyafinyelela esikalini se-nanometer. Okwamanje, i-micropowder eluhlaza ekhanyayo idlala indima “yeqhawe ngemuva kwezigcawu”—i-micropowder ye-silicon carbide eluhlaza, “i-scalpel yezinga le-micrometer” ebalulekile ekukhiqizeni ngokunemba.
I-green silicon carbide (SiC) ayiyona nje isihlabathi. Ingcebo eyakhiwe ngezinto zokusetshenziswa njengesihlabathi se-quartz kanye ne-petroleum coke esithandweni sokumelana, inokwakheka okunzima ngokwemvelo (ubulukhuni be-Mohs obungu-9.5, okwesibili kune-diamond kanye ne-cubic boron nitride). Okuphawuleka kakhulu yimiphetho yayo yekristalu ebukhali njengommese kanye nezakhiwo zamakhemikhali ezizinzile kakhulu, ezivumela ukuthi imelane namazinga okushisa aphezulu futhi imelane nanoma yikuphi ukuphazamiseka kwezinto ezicutshungulwayo. Ngemva kokuchotshozwa nokuhlukaniswa ngokucophelela, lawa ma-micropowder aluhlaza akhazimulayo, amancane njenge-micron noma ngisho nezingxenyana ze-micron, afana "nenkampani ye-micro-sharp blade" ehlelekile futhi ebukhali eyenzelwe ngqo ukubhekana nezinto eziqinile kakhulu, eziqinile kakhulu ngokunemba okudingakalayo.
Ukubhekana nobunzima: “Isitha” se-carbide kanye ne-ceramics
Amathuluzi okusika ama-carbide, izihlalo zokubeka izinto ze-ceramic, kanye nezindandatho zokuvala i-silicon carbide zitholakala kakhulu ezinsimbini ezinembile. Lezi zinto ziqinile kangangokuthi ama-abrasives avamile ayahluleka ukungena kuzo, okuholela ekusebenzeni kahle okuphansi futhi athambekele ekuqhekekeni nasekuqhekekeni. Ukufika kwe-green silicon carbide micropowder kushintsha ngokushesha indawo. “Ngangivame ukugaya amathiphu e-carbide probe ngokucophelela okukhulu, njengokuhlobisa, futhi imiphetho ivame ukuqhekeka,” kusho uXiao Wang, osebenzisa umshini wokugaya oqondile. “Selokhu ngisebenzisa uketshezi lokugaya olwakhiwe nge-green silicon carbide micropowder, sengiqiniseka kakhulu! Izinga lokuphakelwa liyashesha, amandla okugaya azizwa 'eqinile', futhi okubaluleke kakhulu, ubuqotho bomphetho bungcono kakhulu, ngokuqhekeka okuncane kakhulu.” Imfihlo yalokhu ilele ebulukhunini obuphezulu kakhulu kanye nemiphetho ebukhali ye-green silicon carbide micropowder, "esika" izinto ngokuhlanzekile kunokuba icindezelwe ngamandla amakhulu. Lokhu kunciphisa kakhulu umonakalo wezingxenye zokusebenza ezibuthakathaka futhi kwandisa kakhulu ukusebenza kahle kokucubungula.
Ukuqopha “Inhliziyo Yengilazi”: Abapholishi Abangochwepheshe Bezinto Zokubona Nezokukhipha I-Semiconductor
Amehlo ezinsimbi zokunemba—amalensi nama-prism abonakalayo, kanye nama-wafer e-semiconductor kanye nama-chips e-MEMS sensor—adinga izindawo ezibushelelezi njengesikhumba somntwana (ubulukhuni be-Ra buvame ukufinyelela ezingeni le-nanometer), ngaphandle kwendawo yokuklwebheka noma ukulimala okungaphansi komhlaba. I-micropowder eluhlaza ye-silicon carbide iguquka ibe yinkosi yokupholisha ebucayi. Ngesikhathi sokugoqa nokupholisha, i-micropowder eluhlaza ye-silicon carbide enosayizi wezinhlayiya ezincane (i-W-grade noma ngisho ne-finer) isetshenziswa futhi ilengiswe oketshezini lokupholisha oluklanywe ngokukhethekile. “Kuma-oscillator ekristalu ye-quartz noma izindawo zokukhanya ezinembile, ukumiswa kwe-powder eluhlaza ye-silicon carbide kusebenza kangcono kunezinye izinto ezibiza kakhulu,” kusho ingcweti enolwazi oluneminyaka engamashumi amabili emsebenzini wokubona. “Inikeza amandla okugaya azinzile, futhi izinhlayiya ezifanayo cishe azikwazi ukuhlangana futhi ziklwebhe ubuso. Ubuso obucwebezelayo abukhanyi, futhi ungqimba lomonakalo olungaphansi komhlaba alujulile, okubalulekile ekudluliseleni kokukhanya kanye nokuzinza kwesikhathi eside kwezingxenye zokubona!” Ukungangeni kwamakhemikhali okungokwemvelo kwe-silicon carbide eluhlaza kuqinisekisa nokuthi inqubo yokupholisha ayivezi ukungcola nokungcola, okuqinisekisa ubumsulwa bengxenye yokugcina.
Ukubumba Ngokunembile: “Ummese Wokubaza” Wezingxenye Eziyinkimbinkimbi Zezincane
Izinsimbi zokulungisa zigcwele zonke izinhlobo zezingxenye ezincane ezimise okwesimanga: izivikelo ze-ceramic ezingamile ngendlela engajwayelekile, imifantu kuma-chips amancane, kanye namagiya amancane enziwe nge-carbide eqinisiwe. Lezi zindawo zixinene futhi ziyinkimbinkimbi, okwenza amathuluzi endabuko angakwazi ukufinyelelwa. I-micropowder ye-silicon carbide eluhlaza, ehlanganiswe nobuchwepheshe bokulungisa ngokunemba, iba ithuluzi elinamandla "lokusika okuncane." Isibonelo, ukwengeza i-powder ye-silicon carbide eluhlaza okucolekile kahle kuketshezi lokugaya ukuze kugaywe ngokunemba kwe-jig noma ukusika ngocingo kungathuthukisa kakhulu ukusebenza kahle kokugaya kanye nokunemba kwe-contour yezinto eziqinile kakhulu. "Ukwenza leyo microhole encane njengezinwele embotsheni ye-carbide kumayelana nokuyigaya kancane kancane nge-grinding paste efakwe i-green silicon carbide powder, ehlanganiswe nekhanda lokugaya ledayimane elincane njengenaliti," kusho uZhao, oqondisa ukulungiswa kwesikhunta ngokunemba. "Kudala izindonga zembobo eziqondile nezibushelelezi, ngokulawula okulinganayo ngaphakathi kwama-micrometer. Ukusebenzisa ezinye izimpushana akuvezi umphumela oqondile kangaka." Emishinini esizwa yi-ultrasonic, i-green silicon carbide powder ingumlingani omuhle kakhulu wokudlidliza okuvama kakhulu, okuvumela ukubhoboza ngokunemba okuphumelelayo, ukusika, kanye nokucutshungulwa kahle kwe-contour yezinto eziqinile neziphuka kalula.
Ukusebenzisa Kahle Lo “Mmese weMicron”: Okuhlangenwe nakho Okuvela Emsebenzini Wokusebenzela
Njengoba amathuluzi okunemba eqhubeka nokuba mancane, ehlakaniphile, futhi efinyelela ukusebenza okuphezulu nakakhulu, izidingo zokunemba kokukhiqiza zezingxenye eziyinhloko zizoba nzima kakhulu. Ubuchwepheshe bempuphu ye-silicon carbide eluhlaza buhlala buthuthuka. Ama-Micropowders anokusatshalaliswa kosayizi wezinhlayiya ezincane, izinhlayiya ezincane (i-nanoscale), kanye ne-morphology elawuleka kakhulu (njengokuphelela okuyingxenye ukuze kuncishiswe ukuklwebheka) yizindawo zocwaningo nentuthuko ezishisayo. Onjiniyela balwela njalo ukuhlanganisa kangcono ama-micropowders e-silicon carbide eluhlaza kumayunithi okucubungula azenzakalelayo nahlakaniphile (njengeziteshi zokupholisha zamarobhothi kanye nezinhlelo zokugaya eziguquguqukayo ezinokuqapha okuku-inthanethi) ukuze kufezwe ukukhiqizwa okunembile okuzinzile nokuphumelelayo. Ema-workshops okunemba esikhathi esizayo, le "scalpel yezinga le-micrometer" ngokungangabazeki izoba bukhali futhi ihlakaniphe kakhulu.