Ukwenza insimbi yesithando sikagesi se-arc kusekelwe ku-ama-electrodeukukhiqiza ama-arcs, ukuze amandla kagesi aguqulwe abe amandla okushisa ku-arc, kuncibilikiswe umthwalo wesithando somlilo futhi kususwe ukungcola okufana nesibabule ne-phosphorus, kufakwe izinto ezidingekayo (njenge-carbon, i-nickel, i-manganese, njll.) ukuze kuncibilikiswe insimbi noma i-alloy enezakhiwo ezahlukahlukene. Ukushisa kwamandla kagesi kungalawula ngokunembile izinga lokushisa lesithando somlilo futhi kukhiqize igesi engcolile emazingeni okushisa aphansi. Ukusebenza kahle kokushisa kwesithando somlilo sokwenza insimbi se-arc kuphakeme kunokwesiguquli.
Ukuthuthukiswa kobuchwepheshe kunomlando weminyaka engaba yi-100 ekwenzeni insimbi ye-EAF, yize ezinye izindlela zihlala zibhekene nezinselele zokwenza insimbi kanye nokuncintisana, ikakhulukazi umthelela wokwenza insimbi ye-oxygen esebenza kahle kakhulu, kodwa isilinganiso sokukhiqizwa kwensimbi kwe-EAF ekwenzeni insimbi emhlabeni wonke sisakhula unyaka nonyaka. Ekuqaleni kwawo-1990, insimbi ekhiqizwa yi-EAF emhlabeni yayibalelwa ku-1/3 yengqikithi yomkhiqizo wensimbi. Kwamanye amazwe, i-EAF yayiwubuchwepheshe obuyinhloko bokwenza insimbi kwamanye amazwe, futhi isilinganiso sensimbi ekhiqizwa yi-EAF smelting sasiphezulu ngo-70% kunase-Italy.
Ngawo-1980, ukukhiqizwa kwensimbi ye-EAF kwasakazeka kabanzi ekubunjweni okuqhubekayo, futhi kancane kancane kwakha "inqubo yokukhiqiza yokonga amandla yesikhafu esishisayo ngaphambi kokushisa isithando sikagesi se-arc esincibilikisa ukucwenga okuqhubekayo nokugoqa okuqhubekayo, isithando sika-arc sisetshenziswa kakhulu ezikhafulweni zemishini esheshayo njengezinto zokusetshenziswa zokwenza insimbi. Ukuze kunqotshwe ngokuyisisekelo ukungazinzi kwe-arc yesithando sika-arc se-AC esinamandla aphezulu, ukunikezwa kwamandla kwezigaba ezintathu kanye nokungalingani kwamanje kanye nomthelela omkhulu kugridi yamandla kanye nocwaningo lwesithando sika-arc se-DC, futhi safakwa ezimbonini ngekhulu lokuqala.
Maphakathi nawo-1990, isithando somlilo se-DC arc esisebenzisa impande eyodwa kuphela ye-graphite electrode sisetshenziswe kabanzi emhlabeni ngawo-90 (2 nge-graphite electrode ethile. Isithando somlilo se-DC arc).
Kungcono kakhulu ukunciphisa ukusetshenziswa kwama-electrode e-graphite. Inzuzo enkulu yesithando se-DC arc, ngaphambi kokuphela kwawo-1970, i-AC arc esithandweni sensimbi ngethani lokusetshenziswa kwe-graphite electrode ngo-5 ~ 8kg, izindleko ze-graphite electrode zaba ngu-10% wezindleko zensimbi eziphelele zaba ngu-15%, yize kuthathwe izinyathelo eziningana, ukuze ukusetshenziswa kwe-graphite electrode kwehle kwaba ngu-4 6kg, noma izindleko zokukhiqiza zaba ngu-7% 10%, ukusetshenziswa kwamandla aphezulu kanye nendlela yokwenza insimbi enamandla aphezulu, i-electrode yak yehliswa yaba ngu-2 ~ 3k.g / T steel, i-DC arc esithandweni esisebenzisa i-graphite electrode eyodwa kuphela, ukusetshenziswa kwe-graphite electrode kungancishiswa kube yi-1.5kg / T steel ngaphansi.
Kokubili inkolelo kanye nomkhuba kubonisa ukuthi ukusetshenziswa okukodwa kwe-graphite electrode kungancishiswa ngo-40% kuya ku-60% uma kuqhathaniswa nesithando somlilo se-AC arc.
Isikhathi sokuthunyelwe: Meyi-06-2022