Umsebenzi woMphezulu kunye nokusebenza kakuhle kokucubungula iWhite Fused Alumina Micropowder
Xa kufikwa ekugayeni nasekupholisheni, iingcibi ezinamava zihlala zisithi, “Ingcibi enobuchule kufuneka iqale ilole izixhobo zayo.” Kwihlabathi loomatshini abachanekileyo,umgubo omncinci we-alumina oxutyiweyo omhlophe "liyindlu enamandla engaphantsi." Musa ukuyithatha lula le ntwana incinci, efana nothuli; phantsi kwemakroskopu, idlala indima ebalulekileyo ekumiseleni ukuba ingaba isiqwenga somsebenzi ekugqibeleni sifikelela "ekukhanyeni okufana nesipili" okanye asifikeleli kulindelo. Namhlanje, makhe sixoxe ngemiba ebalulekileyo yobudlelwane phakathi "komsebenzi womphezulu" we-alumina micropowder emhlophe exutywe kunye nokusebenza kwayo kakuhle.
I. Umgubo we-White Fused Alumina Micropowder: Okungaphezulu Kokuba “Kunzima” Nje
I-alumina emhlophe exutyiweyo, eyenziwe ngokuyintloko yii-α-alumina, yaziwa ngokuqina kwayo okuphezulu kunye nokuqina kwayo okuhle. Nangona kunjalo, xa yenziwe ibe yi-micropowder, ingakumbi iimveliso ezinobukhulu beesuntswana ezilinganiswa kwii-micrometer okanye nakwii-nanometer, ihlabathi layo liba nzima ngakumbi. Okwangoku, ukuvavanya ukusetyenziswa kwayo kufuna okungaphezulu kokujonga nje ubunzima; "umsebenzi wayo womphezulu" ubalulekile.
Yintoni umsebenzi womphezulu? Ungayiqonda ngolu hlobo: Khawucinge ngenqwaba ye-micro-powder. Ukuba isuntswana ngalinye lifana nebhola encinci egudileyo, "linobubele" omnye komnye, ngoko ukusebenzisana kwalo nomphezulu we-workpiece kunye nolwelo lokusila "akusebenzi kakhulu," kwaye umsebenzi walo uyacotha ngokwemvelo. Kodwa ukuba la masuntswana "anemiphetho" okanye aphethe "izixhobo zokutshaja" ezikhethekileyo okanye "amaqela eekhemikhali," ngoko ke "ayasebenza," ngokulula "abamba" umphezulu we-workpiece, kwaye azimisele ngakumbi ukusasazeka ngokulinganayo kulwelo, endaweni yokuhlangana kunye nokuyekelela. Olu nqanaba lomsebenzi kwiimpawu zomzimba nezeekhemikhali zomphezulu ngumsebenzi wawo womphezulu.
Ivela phi le nto? Okokuqala, iinkqubo zokutyumza kunye nokwahlulahlula ziindlela "zokwakha." Ukutyumza ngoomatshini kuvelisa ngokulula iindawo ezintsha, ezinamandla aphezulu, eziqhekekileyo, nto leyo ebangela umsebenzi ophezulu kodwa mhlawumbi usasazeko olubanzi lwamasuntswana; iindawo ezilungiselelwe ngeendlela zeekhemikhali kusenokwenzeka ukuba "zicocekile" kwaye zifane ngakumbi. Okwesibini, indawo ethile yomphezulu sisikhombisi esibalulekileyo—okukhona amasuntswana ecolekile, kokukhona "indawo yokulwa" inkulu enokufikelela kwindawo yokusebenza enobunzima obufanayo. Okubaluleke ngakumbi, cinga ngemeko yomphezulu: Ngaba une-engile kwaye unesiphako (eneendawo ezininzi ezisebenzayo), okanye ujikelezile (ukumelana nokuguguleka ngakumbi kodwa mhlawumbi ngamandla okusika ancitshisiweyo)? Ngaba umphezulu uthambile okanye uthambile? Ngaba uye wadlula "kutshintsho lomphezulu" olukhethekileyo, njengokugquma nge-silica okanye ezinye ii-coupling agents ukutshintsha iimpawu zawo?
II. Ngaba Ukuzilolonga Okuphezulu “Kuyiyeza Zonke Izinto”? Umdaniso Ontsonkothileyo Osebenza Kakuhle Ekucubunguleni
Ngokwengqiqo, umsebenzi ophezulu womphezulu kufuneka uthethe ukucutshungulwa kwe-micropowder ngamandla nangokufanelekileyo. Kwiimeko ezininzi, oku kuchanekile. Ii-micropowders ezisebenzayo kakhulu, ngenxa yamandla azo aphezulu omphezulu kunye namandla aqinileyo okufunxa, zinokunamathela okanye "zifake" kumphezulu wezinto zokusebenza kunye nezixhobo zokugaya (ezifana neepadi zokupolisha), zifezekisa ukusika okuqhubekekayo nokulinganayo. Ingakumbi kwiinkqubo ezichanekileyo ezifana nokupolisha ngoomatshini bekhemikhali (i-CMP), umphezulu we-micropowder kunye ne-workpiece (njenge-silicon wafer) zinokufumana i-chemical reaction ebuthathaka, ithambise umphezulu wezinto zokusebenza, othi, xa udibene nesenzo soomatshini, ususe, ufezekise isiphumo "esithambileyo kakhulu se-1+1>2″. Kule meko, umsebenzi usebenza njengesikhuthazo sokusebenza kakuhle.
Nangona kunjalo, izinto azilula kangako. Umsebenzi womphezulu likrele elintlangothi-mbini.
Okokuqala, umsebenzi omninzi kakhulu ukhokelela ekutyekeleni okunamandla kakhulu kokuba ii-micro-particles zihlangane, zenze ii-particles zesibini okanye ezinkulu. Khawuthelekelele oku: into eyayiluchungechunge lwemizamo yomntu ngamnye ngoku yi-clutch kunye, inciphisa inani lee-particles ezisikiweyo ngokufanelekileyo. Ezi -clumps zikhulu zinokushiya imikrwelo enzulu kumphezulu womsebenzi, zinciphisa umgangatho wokucubungula kunye nokusebenza kakuhle. Kufana neqela labasebenzi abanomdla kakhulu kodwa abangasebenzisaniyo beqokelelana, bethintelana.
Okwesibini, kwezinye izicelo zokucubungula, ezifana nokusila okurhabaxa okanye ukunqumla izinto ezithile eziqinileyo neziqhekekileyo kakuhle, sinokufuna ii-micro-particles ukuze sigcine "ubukhali obuzinzileyo." Umsebenzi ophezulu kakhulu womphezulu unokubangela ukuba ii-micro-particles ziqhekeke kwaye ziguge ngaphambi kwexesha xa zitshatyalaliswa. Nangona amandla okuqala okusika enokuba namandla, ukuqina kwawo kuphantsi, kwaye izinga lokususa izinto ngokubanzi linokwehla. Kwiimeko ezinjalo, ii-micro-particles ezinomphezulu ozinzileyo emva konyango olufanelekileyo lokuthambisa, ngenxa yemiphetho yazo eqinileyo kunye nobunzima, zinokubonelela ngokusebenza ngcono ngokubanzi.
Ngaphezu koko, ukusebenza kakuhle kokucubungula luphawu olunemilinganiselo emininzi: izinga lokususwa kwezinto, uburhabaxa bomphezulu, ubunzulu bomonakalo womphezulu ongaphantsi komhlaba, uzinzo lwenkqubo, njl. Ii-micropowders ezisebenzayo kakhulu zinokuba luncedo ekufezekiseni uburhabaxa bomphezulu obuphantsi kakhulu (umgangatho ophezulu), kodwa ukuze kufezekiswe olu mgangatho uphezulu, ngamanye amaxesha kuyimfuneko ukunciphisa uxinzelelo okanye isantya, nto leyo enciphisa izinga lokususwa. Indlela yokulinganisela ixhomekeke kwiimfuno ezithile zokucubungula.
III. "Indlela Ehambelanayo": Ukufumana Ibhalansi Efanelekileyo Kwisicelo
Ngoko ke, ukuxoxa ngeenzuzo zomsebenzi ophezulu okanye ophantsi ngaphandle kokuqwalasela imeko ethile yesicelo akunantsingiselo. Kwimveliso yokwenyani, sikhetha "iimpawu zomphezulu" ezifanelekileyo kakhulu "kumsebenzi othile wokucubungula."
Kwi-ultra-precision polishing (ezifana neelensi ze-optical kunye nee-semiconductor wafers): injongo kukufikelela kumphezulu ogqibeleleyo kwisikali se-athomu. Kule meko, ii-micropowders ezisebenzayo kakhulu ezinohlu oluchanekileyo, ukusasazwa kobukhulu bezinto ezincinci kakhulu, kunye neendawo eziguqulwe ngononophelo (ezifana ne-silica sol encapsulation) zihlala zikhethwa. Ukusasazeka kwazo okuphezulu kunye nokusebenzisana kweekhemikhali kunye ne-polishing slurry kubalulekile. Apha, umsebenzi ngokuyintloko ukhonza "umgangatho ophezulu," ngelixa ukusebenza kakuhle kulungiswa ngolawulo oluchanekileyo lweeparamitha zenkqubo.
Kwizinto zokuqhobosha eziqhelekileyo, izinto zokuqhobosha zebhanti, kunye neempuphu ze-micronized ezisetyenziswa kumavili okusila: Ukusebenza okuzinzileyo kokusika kunye neempawu zokuzilola zibaluleke kakhulu. Umpuphu we-micronized kufuneka ukwazi ukuqhekeka phantsi koxinzelelo oluthile, uveze imiphetho emitsha ebukhali. Kweli nqanaba, umsebenzi womphezulu akufuneki ube phezulu kakhulu ukuze kuthintelwe ukuhlangana kwangaphambi kwexesha okanye ukusabela kakhulu. Ngokulawula ubumsulwa bezinto eziluhlaza kunye neenkqubo zokusila, ukufumana iimpuphu ze-micronized ezinesakhiwo esifanelekileyo (ezinamandla athile adibeneyo endaweni yokusukela nje amandla aphezulu omphezulu) zihlala zivelisa ukusebenza ngcono kokucubungula ngokubanzi.
Kwizicelo zokumiswa okutsha kunye nokulunywa: Ukuzinza kokusasazeka komgubo owenziwe nge-micron kubalulekile. Ukuguqulwa komphezulu (njengokufakelwa iipolymers ezithile okanye ukulungisa amandla e-zeta) kufuneka kusetyenziswe ukunika isithintelo esaneleyo se-steric okanye ukugxothwa kwe-electrostatic, okuvumela ukuba ihlale imiswe ngokulinganayo ixesha elide nokuba ikwimeko esebenzayo kakhulu. Kule meko, iteknoloji yokuguqulwa komphezulu imisela ngokuthe ngqo ukuba umsebenzi ungasetyenziswa ngokufanelekileyo na, iphephe inkunkuma ngenxa yokubola okanye ukuhlanganiswa, ngaloo ndlela iqinisekisa ukusebenza kakuhle kokucubungula okuqhubekayo nokuzinzileyo.
Isiphelo: Ubugcisa Bokukwazi “Umsebenzi” Kwihlabathi LeeMicroskopu
Emva kokuba uthethe kakhulu kangaka, usenokuba uqaphele ukuba umsebenzi womphezului-alumina emhlophe exutyiweyoI-micropowder kunye nokusebenza kakuhle kokucubungula azilingani nje kuphela. Kufana nokusebenza kakuhle kwe-balance beam eyilwe ngobuchule: kuyimfuneko ukukhuthaza "inzondelelo yokusebenza" yesuntswana ngalinye kwaye, ngenkqubo kunye netekhnoloji, ukuthintela ukuba zingaphelelwa ngaphakathi okanye zingalawuleki ngenxa "yenzondelelo egqithisileyo." Iimveliso ze-micropowder ezigqwesileyo kunye neendlela zokucubungula ezintsonkothileyo ngokusisiseko zisekelwe ekuqondeni okunzulu kwezinto ezithile kunye neenjongo ezithile zokucubungula, ezibandakanya uyilo "olwenzelwe wena" kunye nolawulo lomsebenzi womphezulu we-micropowder. Ulwazi olufunyenwe "kumsebenzi wokuqonda" ukuya "kumsebenzi wobuchule" lubonisa ngokucacileyo utshintsho lwemishini yokuchaneka yanamhlanje ukusuka "kubugcisa" ukuya "kwisayensi."
Ngexesha elizayo xa ubona into yokusebenza efana nesipili, mhlawumbi ungacinga ukuba kuloo ndawo yemfazwe engabonakaliyo, amasuntswana amaninzi e-alumina micropowder amhlophe adibeneyo abandakanyeka kwidabi elisebenza kakuhle nelihlelekileyo elinobunono "bokuma okusebenzayo." Olu luphawu oluncinci lokuhlanganiswa okunzulu kwesayensi yezinto kunye neenkqubo zokuvelisa.