I-graphite yokwenziwa yi-polycrystalline efana ne-crystallography. Kukho iintlobo ezininzi ze-graphite yokwenziwa kunye neenkqubo ezahlukeneyo zemveliso.
Ngokubanzi, zonke izinto zegrafiti ezifunyenwe emva kokwenziwa icarbonization kwezinto eziphilayo kunye negrafitiization kubushushu obuphezulu zinokubizwa ngokuba yigrafiti yokwenziwa, njengefayibha yekhabhoni (igrafiti), i-pyrolytic carbon (igrafiti), igrafiti yefoam, njl.
Ngengqiqo encinci, i-graphite yokwenziwa idla ngokubhekisa kwizinto eziqinileyo ezinkulu, ezifana ne-graphite electrode, i-isostatic graphite, eyenziwe ngokudibanisa, ukuxuba, i-carbonization (eyaziwa ngokuba yi-roasting kwishishini) kunye ne-graphitization, kunye nomxholo ophantsi wokungcola kwezinto eziluhlaza zamalahle (i-petroleum coke, i-asphalt coke, njl.njl.) njenge-aggregate, i-coal pitch njenge-binder.
Kukho iintlobo ezininzi zegrafiti yokwenziwa, kuquka umgubo, ifayibha kunye nebhloko, ngelixa ingqiqo encinci yegrafiti yokwenziwa idla ngokuba yibhloko, ekufuneka icutshungulwe ibe yimo ethile xa isetyenziswa. Ingathathwa njengohlobo lwezinto ezisebenzisa izigaba ezininzi, kuquka isigaba segrafiti esiguqulwa ziinxalenye zekhabhoni ezifana ne-petroleum coke okanye i-asphalt coke, isigaba segrafiti esiguqulwa yi-coal pitch binder egqunywe ziingceba, ukuqokelelwa kweengceba okanye ii-pores ezenziwe yi-coal pitch binder emva konyango lobushushu, njl. Ngokubanzi, okukhona ubushushu bonyango lobushushu buphezulu, kokukhona inqanaba legrafiti liphezulu. Imveliso ye-artificial graphite, inqanaba legrafiti lidla ngokuba ngaphantsi kwe-90%.
Xa ithelekiswa negrafiti yendalo, igrafiti yokwenziwa inobushushu obuphantsi kunye nombane oqhubayo, i-lubricity kunye ne-plasticity, kodwa igrafiti yokwenziwa ikwanokumelana nokuguguleka okungcono, ukumelana nokugqwala kunye nokungena kwamanzi okuphantsi kunegrafiti yendalo.
Izinto ezisetyenziswa ekuveliseni i-graphite yokwenziwa ziquka i-petroleum coke, i-needle coke, i-asphalt coke, i-coal pitch, i-carbon microspheres, njl. Iimveliso zayo ezisezantsi ziquka i-graphite electrode, i-anode ebhakiweyo kwangaphambili, i-isostatic graphite, i-high purity graphite, i-nuclear graphite, i-heat exchanger njalo njalo.
Ukusetyenziswa kwemveliso yegrafiti yokwenziwa kubonakala kakhulu kwezi zinto zilandelayo:
1. I-electrode yeGraphite: Nge-petroleum coke kunye ne-needle coke njengezinto eziluhlaza kunye ne-coal pitch njenge-binder, i-graphite electrode yenziwa nge-calcination, batching, mixing, pressing, roasting, graptitization kunye ne-machining. Isetyenziswa kakhulu kwi-electric furnace steel, i-industrial silicon, i-yellow phosphorus kunye nezinye izixhobo ngokukhulula amandla ombane ngendlela ye-arc ukuze ifudumale kwaye inyibilikise itshaja.
2. I-anode ebhakiweyo kwangaphambili: yenziwe nge-petroleum coke njengezinto eziluhlaza kunye ne-coal pitch njenge-binder ngokusebenzisa i-calcination, i-batching, i-mixing, i-pressing, i-roasting, i-impregnation, i-graphitization kunye ne-machining, isetyenziswa ngokubanzi njenge-conductive anode yezixhobo ze-aluminium ze-electrolytic.
3. I-Bearing, i-sealing ring: izixhobo ze-media ezithwala i-corrosive, i-graphite yokwenziwa esetyenziswa kakhulu eyenziwe ngeeringi ze-piston, iiringi zokuvala kunye nee-bearing, isebenza ngaphandle kokongeza ioyile yokuthambisa.
4. Isixhobo sokutshintsha ubushushu, udidi lwesihluzo: igrafiti yokwenziwa ineempawu zokuxhathisa ukugqwala, ukuqhuba kakuhle kobushushu kunye nokungena okuphantsi. Isetyenziswa kakhulu kwishishini leekhemikhali ukwenza isixhobo sokutshintsha ubushushu, itanki yokusabela, i-absorber, i-filter kunye nezinye izixhobo.
5. Igrafiti ekhethekileyo: ene-petroleum coke esemgangathweni ophezulu njengezinto eziluhlaza, i-coal pitch okanye i-synthetic resin njenge-binder, ngokulungiselela izinto eziluhlaza, ukuxuba, ukuxova, ukucinezela, ukutyumza, ukuxuba ukuxova, ukubumba, ukurosa okuninzi, ukungena okuninzi, ukucoca kunye nokuchonga, ukwenza i-machining kunye nokwenza, ngokubanzi kubandakanya i-isostatic graphite, i-nuclear graphite, i-high pureness graphite, esetyenziswa kwi-aerospace, kwi-electronics, kumacandelo oshishino lwenyukliya.
Ixesha lokuthumela: Novemba-23-2022