I-graphite ecindezelayo e-isostaticUhlobo olusha lwe-graphite ekhiqizwa ngawo-1960, olunochungechunge lwezinto ezinhle kakhulu. Isibonelo, i-graphite ecindezelayo e-isostatic inokumelana nokushisa okuhle. Ngomoya we-inert, amandla ayo emishini awagcini nje ngokuncipha kokushisa kwamazinga okushisa, kepha futhi ayanda, afinyelele inani lawo eliphakeme kakhulu ngo-2500 ℃; Uma kuqhathaniswa negrafu ejwayelekile, isakhiwo sayo sihle futhi siminyene, futhi ukufana kwawo kulungile; I-coefficie ekwandisweni kwe-thermal iphansi kakhulu futhi inokumelana okuhle kakhulu okushisayo okushisayo; Isotropic; Ukuphikiswa okuqinile kokugqwayiza kwamakhemikhali, ukuvumelanisa okuhle nokukhalipha; Inokusebenza okuhle kakhulu kokusebenza kwemishini.
Cishe ngenxa yokusebenza kwayo okuhle kakhulu ukuthi i-graphite yokucindezela ecindezelayo esetshenziswa kakhulu isetshenziswa kabanzi emikhakheni efana ne-metallurgy, chemistry, e-Arospace, kanye ne-athomu yamandla embonini. Ngaphezu kwalokho, ngokuthuthukiswa kwesayensi nezobuchwepheshe, amasimu wohlelo lokusebenza akhula njalo.
Inqubo yokukhiqiza ye-Isstatic Pressing Graphite
Inqubo yokukhiqiza ye-Isstatic Pressing Graphite iboniswa kuMfanekiso 1. Kuyacaca ukuthi inqubo yokukhiqiza ye-Isstatic Pressing Graphite ihlukile kwaleyo kagesi we-graphite.
I-Graphite ecindezelayo e-Isstatic idinga izinto ezisetshenziswayo ze-isotropic ehlelekile, ezidinga ukuba zibe yimikhawulo ibe yi-powder powders. Ubuchwepheshe obucindezelayo obandayo bokucindezela budinga ukusetshenziswa, futhi umjikelezo othosiwe isikhathi eside. Ukuze kufinyelelwe inyumbazane eqondiwe, kudingeka imijikelezo eminingi yokuthosela okuthosiwe, futhi umjikelezo wokuqhafaza mude kakhulu kunalokho okujwayelekile.
Enye indlela yokukhiqiza i-graphite ecindezelwe e-Isstatic ukusebenzisa ama-Mesophase Carbon Microspheres njengezinto ezivuthiwe. Okokuqala, ama-Mesofase Carbon Microsloslos afakwa ngaphansi kokwelashwa okuthuthukile komoya emazingeni okushisa aphezulu, alandelwa ngokucindezela okuqhubekayo, kulandelwe ukuzonda okuqhubekayo kanye nama-graphitization. Le ndlela awethulwanga kule ndatshana.
1.1 Izinto ezingavuthiwe
ThE Izinto zokusetshenziswa zokukhiqiza i-Isstatic Press Graphite kufaka phakathi ama-aggregates kanye nama-linders. Ama-aggregates ajwayele ukwenziwa kusuka ku-petroleum coke kanye ne-asphalt Coke, kanye ne-asphalt coke ye-Ground. Isibonelo, i-AXF Series iststatic graphite ekhiqizwa yi-poco e-United States yenziwa nge-asphalt Coke Gilsontecoke.
Ukuze uguqule ukusebenza komkhiqizo ngokuya ngokusetshenziswa okuhlukile, i-graphite emnyama ne-carbon kanye ne-traphicial nayo isetshenziswa njengezengezo. Ngokuvamile, uPetroleum Coke kanye ne-Asphalt Coke badinga ukubalwa ngo-1200 ~ 1400 ℃ ukususa umswakama kanye nento eguquguqukayo ngaphambi kokusebenzisa.
Kodwa-ke, ukuze uthuthukise izakhiwo zemishini kanye nobukhulu bemikhiqizo yezokwakheka, kukhona nokukhiqizwa okuqondile kokucindezela okucindezelwa okukhona usebenzisa izinto ezingavuthiwe ezifana ne-coke. Isimo sokudonswa kwe-coking ukuthi siqukethe into eshintshashintshayo, inezindawo zokuzibandakanya ngokwayo, futhi yandise kanye nezinkontileka ezivumelanayo nge-Minter Coke. I-Binder Imvamisa isebenzisa i-Coal Tar Pitch, futhi ngokuya ngemibandela yemishini ehlukene kanye nezidingo zenqubo yebhizinisi ngalinye, iphuzu lokuthambisa le-Coal Tar Pitch esetshenzisiwe kusuka ku-50 ℃ kuya ku-250 ℃.
Ukusebenza kwe-graphite ecindezelwe e-isostatic kuthintwa kakhulu ngezinto zokwakha, futhi ukukhethwa kwezinto ezisetshenziswayo kuyisixhumanisi esibalulekile ekukhiqizeni umkhiqizo wokugcina odingekayo. Ngaphambi kokondla, izici kanye nokufana kwezinto ezisetshenziswayo kufanele zihlolwe ngokuqinile.
1.2 Ukugaya
Ubukhulu obuhlanganisiwe bokucindezela okucindezelayo okuhlangenwe nakho buvame ukudingeka ukufinyelela ngaphansi kwe-20um. Njengamanje, i-graphite ecindezelwe kakhulu ecwebezelayo ine-malicle ephezulu ye-1 μ m. Mncane kakhulu.
Ukuze ugaye i-coketegate coke ye-powder enhle kangaka, i-ultra-fice crusher iyadingeka. Ukugaya ngosayizi ojwayelekile we-10-20 μ i-powder of m kudinga ukusetshenziswa kwe-vertical roller mill, ngosayizi ojwayelekile wezinhlayiyana okungaphansi kwe-10 μ I-powder ye-air grinder.
1.3 ukuxuba nokuxova
Faka i-Ground Powder ne-Coal Tar Pitch ngokulingana ibe yi-lixer yokushisa ukuze uxolise, ukuze ungqimba lwe-asphalt lunamathelwa ngobuhle ebusweni bezinhlayiya zamampuphu. Ngemuva kokuxova, susa ukunamathisela bese uyivumela ipholile.
Isikhathi sePosi: Sep-27-2023