Ukwenza intsimbi yesithando sombane i-arc kusekelwe kwiii-electrodeukuvelisa ii-arcs, ukuze amandla ombane atshintshelwe kumandla obushushu kwi-arc, ukunyibilikisa umthwalo wesithando somlilo kunye nokususa ukungcola okufana nesalfure kunye ne-phosphorus, ukongeza izinto ezifunekayo (ezifana nekhabhoni, i-nickel, i-manganese, njl.njl.) ukunyibilikisa intsimbi okanye i-alloy eneempawu ezahlukeneyo. Ukufudumeza amandla ombane kunokulawula ngokuchanekileyo ubushushu besithando somlilo kunye nokuvelisa igesi emdaka enobushushu obuphantsi. Ukusebenza kakuhle kobushushu besithando somlilo sokwenza intsimbi kwi-arc kuphezulu kunoko kwe-converter.
Uphuhliso lwetekhnoloji lunembali yeminyaka emalunga ne-100 ekwenzeni intsimbi ye-EAF, nangona ezinye iindlela zihlala zijongene nemingeni yokwenza intsimbi kunye nokhuphiswano, ngakumbi impembelelo yokwenza intsimbi yeoksijini esebenza kakuhle, kodwa umlinganiselo wemveliso yentsimbi ye-EAF kwimveliso yentsimbi yehlabathi usakhula unyaka nonyaka. Ekuqaleni kweminyaka yoo-1990, intsimbi eveliswa yi-EAF ehlabathini yayibalelwa kwi-1/3 yemveliso iyonke yentsimbi. Kwamanye amazwe, i-EAF yayiyeyona teknoloji iphambili yokwenza intsimbi kwamanye amazwe, kwaye umlinganiselo wentsimbi eveliswa yi-EAF smelting wawuphezulu ngama-70% kunaleyo yase-Itali.
Kwiminyaka yoo-1980, xa imveliso yentsimbi ye-EAF yayisasazeke kakhulu ekubunjweni okuqhubekayo, kwaye kancinci kancinci kwasekwa "inkqubo yokonga amandla yemveliso ye-scrap preheating electric arc furnace smelting, refined continuous casting, continuous rolling, arc furnace isetyenziswa kakhulu kwizixhobo ezikhawulezayo njengezinto zokwenza intsimbi. Ukuze koyiswe ngokusisiseko ukungazinzi kwe-AC arc furnace enamandla aphezulu, umbane wesigaba esithathu kunye nokungalingani kwangoku kunye nempembelelo embi kwigridi yamandla kunye nophando lwe-DC arc furnace, kwaye yafakwa kwimveliso kwinkulungwane yokuqala.
phakathi kwiminyaka yoo-1990, i-DC arc furnace esebenzisa ingcambu enye kuphela ye-graphite electrode isetyenzisiwe kakhulu kwihlabathi liphela kwiminyaka yoo-90 (ezimbini kunye ne-graphite electrode ye-DC arc furnace).
Ukunciphisa kakhulu ukusetyenziswa kwee-electrode ze-graphite. Eyona nzuzo inkulu ye-DC arc oven, ngaphambi kokuphela kweminyaka yoo-1970, i-AC arc oven ngetoni nganye yokusetyenziswa kwe-graphite electrode ngetoni nganye kwi-5 ~ 8kg, iindleko ze-graphite electrode zibalwa njenge-10% yexabiso lilonke lentsimbi ukuya kwi-15%, nangona kuthathwe amanyathelo amaninzi, ukuze ukusetyenziswa kwe-graphite electrode kwehle ukuya kwi-4 6kg, okanye iindleko zemveliso zibalwa njenge-7% 10%, ukusetyenziswa kwamandla aphezulu kunye nendlela yokwenza intsimbi enamandla aphezulu, i-electrode yak incitshisiwe ukuya kwi-2 ~ 3k.g / T steel, i-DC arc oven esebenzisa i-graphite electrode enye kuphela, ukusetyenziswa kwe-graphite electrode kungancitshiswa ukuya kwi-1.5kg / T steel phantsi.
Zombini ithiyori kunye nokusebenza zibonisa ukuba ukusetyenziswa ngaxeshanye kwe-graphite electrode kunokunciphisa ngama-40% ukuya kuma-60% xa kuthelekiswa ne-AC arc furnace.
Ixesha lokuthumela: Meyi-06-2022