I-graphite ecindezelayo ye-Isostaticiwuhlobo olusha lwezinto ze-graphite ezakhiwa ngawo-1960, ezinochungechunge lwezakhiwo ezinhle kakhulu.Isibonelo, i-isostatic pressing graphite inokumelana nokushisa okuhle.Emkhathini ongasebenzi kahle, amandla ayo emishini awehli nje kuphela ngokukhuphuka kwezinga lokushisa, kodwa futhi ayanda, afinyelele inani lawo eliphakeme kakhulu cishe ku-2500 ℃;Uma kuqhathaniswa ne-graphite evamile, ukwakheka kwayo kuhle futhi kuminyene, futhi ukufana kwayo kuhle;I-coefficient yokwanda okushisayo iphansi kakhulu futhi inokumelana nokushaqeka okuhle kakhulu kokushisa;Isotropic;Ukumelana nokugqwala kwamakhemikhali okuqinile, ukuguquguquka okuhle kokushisa nogesi;Inokusebenza okuhle kakhulu kokucubungula komshini.
Kungenxa yendlela esebenza kahle ngayo ukuthi i-isostatic pressing graphite isetshenziswa kabanzi emikhakheni efana ne-metallurgy, chemistry, Electrical, Aerospace, kanye nemboni yamandla e-athomu.Ngaphezu kwalokho, ngokuthuthukiswa kwesayensi nobuchwepheshe, izinkambu zokufaka izicelo zikhula njalo.
Inqubo yokukhiqiza ye-isostatic pressing graphite
Inqubo yokukhiqiza i-isostatic pressing graphite iboniswa kuMfanekiso 1. Kusobala ukuthi inqubo yokukhiqiza i-isostatic pressing graphite ihlukile kuleyo yama-graphite electrode.
I-Isostatic pressing graphite idinga izinto zokusetshenziswa ze-isotropic ngokwesakhiwo, ezidinga ukugaywa zibe izimpushana ezicolekile.Ubuchwepheshe bokwakha obucindezelayo obubandayo be-isostatic budinga ukusetshenziswa, futhi umjikelezo wokugazinga mude kakhulu.Ukuze kuzuzwe ukuminyana okuqondiwe, imijikelezo yokuthosa yokufaka eminingi iyadingeka, futhi umjikelezo we-graphitization mude kakhulu kunalowo we-graphite evamile.
Enye indlela yokukhiqiza i-isostatic pressing graphite ukusebenzisa i-mesophase carbon microspheres njengezinto zokusetshenziswa.Okokuqala, ama-mesophase carbon microspheres angaphansi kokwelashwa kokuqiniswa kwe-oxidation emazingeni okushisa aphezulu, alandelwa ukucindezela kwe-isostatic, okulandelwa ukubala okuqhubekayo kanye ne-graphitization.Le ndlela ayethulwanga kulesi sihloko.
1.1 Izinto ezisetshenziswayo
Thizinto zokusetshenziswa zokukhiqiza i-graphite ecindezelayo ye-isostatic ihlanganisa ama-aggregates nama-binder.Ama-aggregates ngokuvamile enziwa nge-petroleum coke kanye ne-asphalt coke, kanye ne-asphalt coke yomhlabathi.Isibonelo, uchungechunge lwe-AXF isostatic graphite ekhiqizwa yi-POCO e-United States yenziwe nge-asphalt coke ephansi i-Gilsontecoke.
Ukuze ulungise ukusebenza komkhiqizo ngokusetshenziswa okuhlukile, i-carbon black kanye ne-graphite yokwenziwa nayo isetshenziswa njengezithasiselo.Ngokuvamile, i-petroleum coke ne-asphalt coke idinga ukubalwa ku-1200 ~ 1400 ℃ ukuze kukhishwe umswakama kanye nendaba eguquguqukayo ngaphambi kokusetshenziswa.
Kodwa-ke, ukuze kuthuthukiswe izakhiwo zemishini kanye nokuminyana kwesakhiwo semikhiqizo, kukhona nokukhiqizwa okuqondile kwe-isostatic pressing graphite kusetshenziswa izinto ezingavuthiwe ezifana necoke.Isici se-coking ukuthi iqukethe izinto eziguqukayo, inezici zokuzenzela, futhi iyanwebeka futhi inkontileka ngokuhambisana ne-binder coke.I-binder ivamise ukusebenzisa i-tiyela yamalahle, futhi ngokuya ngezimo zemishini ehlukene kanye nezidingo zenqubo yebhizinisi ngalinye, indawo yokuthambisa yetiyela yamalahle esetshenziswayo isuka ku-50 ℃ iye ku-250 ℃.
Ukusebenza kwe-isostatic pressing graphite kuthintwa kakhulu izinto zokusetshenziswa, futhi ukukhethwa kwezinto ezingavuthiwe kuyisixhumanisi esibalulekile ekukhiqizeni umkhiqizo wokugcina odingekayo.Ngaphambi kokuphakela, izici kanye nokufana kwezinto zokusetshenziswa kufanele kubhekwe ngokuqinile.
1.2 Ukugaya
Usayizi ohlanganisiwe we-graphite ecindezelayo ye-isostatic ngokuvamile udingeka ukuze ufinyelele ngaphansi kwama-20um.Njengamanje, i-graphite yokucindezela ye-isostatic ecwengisiswe kakhulu inobukhulu bezinhlayiyana ezinobubanzi obungu-1 μ m.Izacile kakhulu.
Ukuze ugaye i-coke ehlanganisiwe ibe yimpushana ecolekileyo kangako, kudingeka i-ultra-fine crusher.Ukugaya ngesilinganiso sobukhulu bezinhlayiyana ze-10-20 μ I-powder ye-m idinga ukusetshenziswa kwesigayo se-roller esiqondile, esinesilinganiso sobukhulu bezinhlayiyana ezingaphansi kuka-10 μ Impushana ye-m idinga ukusetshenziswa kwe-air flow grinder.
1.3 Ukuxuba nokuxova
Faka impushana yomhlabathi kanye ne-coal tar pitch binder ngokulingana ku-mixer yokufudumeza ukuze uxove, ukuze ungqimba lwetiyela lunamathele ngokulinganayo ebusweni bezinhlayiya ze-coke eziyimpuphu.Ngemuva kokuxova, susa inhlama bese uyiyeka ipholile.
Isikhathi sokuthumela: Sep-27-2023