I-synthetic graphite iyi-polycrystalline efana ne-crystallography. Kunezinhlobo eziningi ze-graphite yokwenziwa kanye nezinqubo ezahlukene zokukhiqiza.
Ngomqondo obanzi, zonke izinto ze-graphite ezitholwe ngemuva kwe-carbonization yezinto eziphilayo kanye ne-graphitization ekushiseni okuphezulu zingabizwa ngokuhlangene ngokuthi i-graphite yokwenziwa, njenge-carbon (graphite) fiber, i-pyrolytic carbon (graphite), i-foam graphite, njll.
Ngomqondo omncane, i-graphite yokwenziwa ngokuvamile ibhekisela ezintweni eziqinile eziyinqwaba, njenge-graphite electrode, i-isostatic graphite, eyenziwe ngokuhlanganisa, ukuxuba, ukubumba, i-carbonization (okwaziwa ngokuthi ukugazinga embonini) kanye ne-graphitization, enokungcola okuphansi kwezinto zokusetshenziswa zamalahle. (i-petroleum coke, i-asphalt coke, njll.) njenge-aggregate, i-coal pitch njenge-binder.
Kunezinhlobo eziningi ze-graphite yokwenziwa, okuhlanganisa impushana, i-fiber kanye ne-block, kuyilapho umqondo omncane we-graphite yokwenziwa ngokuvamile uyi-block, okudingeka ukuthi icutshungulwe ibe yisimo esithile lapho isetshenziswa. Kungabhekwa njengohlobo lwezinto ezixubile, kufaka phakathi isigaba segraphite esiguqulwa yizinhlayiya zekhabhoni ezifana ne-petroleum coke noma i-asphalt coke, isigaba segraphite esiguqulwa yi-coal pitch binder eboshwe ezungeze izinhlayiya, ukuqoqwa kwezinhlayiyana noma izimbotshana ezakhiwe amalahle. i-pitch binder ngemva kokwelashwa kokushisa, njll. Ngokuvamile, izinga lokushisa lokushisa liphakeme, izinga le-graphitization liphezulu. Ukukhiqizwa kwezimboni ze-graphite yokwenziwa, izinga le-graphitization ngokuvamile lingaphansi kwama-90%.
Uma kuqhathaniswa ne-graphite yemvelo, i-graphite yokwenziwa inokudlulisa ukushisa okubuthakathaka kanye nokuhamba kukagesi, i-lubricity kanye ne-plasticity, kodwa i-graphite yokwenziwa nayo inokumelana nokugqoka okungcono, ukumelana nokugqwala kanye nokungena okuncane kune-graphite yemvelo.
Izinto zokusetshenziswa zokukhiqiza i-graphite yokwenziwa ikakhulukazi zifaka i-petroleum coke, i-coke yenaliti, i-asphalt coke, i-coal pitch, i-carbon microspheres, njll. Imikhiqizo yakhona engaphansi komfula ikakhulukazi ihlanganisa i-graphite electrode, i-anode ebhakwe ngaphambilini, i-isostatic graphite, i-graphite ehlanzekile kakhulu, i-nuclear graphite, ukushisa. exchanger nokunye.
Ukusetshenziswa komkhiqizo we-graphite yokwenziwa kubonakala ikakhulukazi kulezi zici ezilandelayo:
1. I-electrode ye-graphite: Nge-coke ye-petroleum ne-coke yenaliti njengezinto zokusetshenziswa kanye ne-pitch yamalahle njenge-binder, i-electrode ye-graphite yenziwa ngokubala, ukuxubha, ukuxuba, ukucindezela, ukugazinga, ukuxubha kanye nomshini. Isetshenziswa kabanzi esithandweni somlilo sikagesi, i-silicon yezimboni, i-phosphorus ephuzi nezinye izinto zokusebenza ngokukhulula amandla kagesi ngendlela ye-arc ukushisa nokuncibilikisa ukushaja.
2. I-anode ebhakwe ngaphambilini: eyenziwe nge-petroleum coke njengempahla eluhlaza kanye ne-pitch yamalahle njengesibophezelo ngokusebenzisa i-calcination, i-batching, ukuxuba, ukucindezelwa, ukugazinga, ukungena ngaphakathi, i-graphitization kanye nomshini, ngokuvamile isetshenziswa njenge-anode conductive yemishini ye-electrolytic aluminium.
3. Ukuthwala, ukuvala indandatho: ukudlulisa imishini yemidiya ebolayo, i-graphite yokwenziwa esetshenziswa kabanzi eyenziwe ngamasongo e-piston, izindandatho zokuvala nama-bearings, sebenza ngaphandle kokwengeza amafutha okugcoba.
4. Umshini wokushisa, isigaba sokuhlunga: i-graphite yokufakelwa inezici zokumelana nokugqwala, ukuqhutshwa kahle kwe-thermal kanye nokungena okuncane. Isetshenziswa kabanzi embonini yamakhemikhali ukwenza isishintshi sokushisa, ithangi lokuphendula, i-absorber, isihlungi nezinye izinto zokusebenza.
5. I-graphite ekhethekile: enekhwalithi ephezulu ye-petroleum coke njengento eluhlaza, i-pitch yamalahle noma i-resin yokwenziwa njenge-binder, ngokulungiselela impahla eluhlaza, ukuxubha, ukuxova, ukucindezela, ukuchotshozwa, ukuxuba ukuxova, ukubumba, ukugazinga okuningi, ukungena okuningi, ukuhlanzwa kanye ne-graphitization, ukukhanda nokwenza, ngokuvamile okuhlanganisa i-isostatic graphite, i-nuclear graphite, i-high purrity graphite, esetshenziswa emikhakheni ye-aerospace, electronics, imboni yezimboni zenuzi.
Isikhathi sokuthumela: Nov-23-2022