Electric arc furnace steelmaking inobva paelectrodeskugadzira arcs, kuitira kuti simba remagetsi rishandurwe kuita simba rekupisa muarc, kunyunguduka kwevira mutoro uye kubvisa tsvina yakadai sesarufa uye phosphorus, kuwedzera zvinhu zvinodiwa (zvakadai sekabhoni, nickel, manganese, nezvimwewo) kunyungudutsa simbi kana alloy nezvinhu zvakasiyana-siyana. Magetsi emagetsi ekudziya anogona kunyatso kudzora tembiricha yechoto uye kuburitsa yakaderera tembiricha tsvina gasi. Kupisa kwekupisa kwearc steelmaking furnace yakakwirira kudarika iyo yekushandura.
Kusimukira kweTekinoroji kune nhoroondo yemakore angangosvika zana mukugadzira simbi yeEAF, kunyangwe dzimwe nzira dzinogara dzichisangana nematambudziko ekugadzira simbi uye kukwikwidza, kunyanya iyo yakanyanya kushanda zvakanaka okisijeni kugadzira simbi, asi chikamu chekugadzirwa kwesimbi kweEAF kugadzirwa kwesimbi munyika yepasirese kuchiri kuwedzera gore negore. Mukutanga kwema1990, simbi inogadzirwa neEAF munyika yakaverengera 1/3 yehuwandu hwesimbi yakabuda. Mune dzimwe nyika, EAF ndiyo yaive tekinoroji huru yekugadzira simbi mune dzimwe nyika, uye chikamu chesimbi chaigadzirwa neEAF kunyungudutsa chaive 70% chepamusoro pane icho muItaly.
Muna 1980s, yakapararira muEAF kugadzirwa kwesimbi mukuenderera mberi kukanda, uye zvishoma nezvishoma yakagadzira "simba-rekuchengetedza kugadzirwa kwechikara chinopisa chemagetsi arc choto chinonyungudutsa kunatsa kunoramba kuchikanda kutenderedza, arc choto chinonyanya kushandiswa kukurumidza midziyo yakaraswa seyakagadzirwa nesimbi mukugadzira simbi yesimbi. furnace arc kusagadzikana, matatu-chikamu simba rekupa uye ikozvino kusagadzikana uye kukanganisa kwakanyanya pane gidhi remagetsi uye kutsvagisa kweDC arc furnace, uye kuiswa muindasitiri yekushandisa pakutanga Century.
pakati pemakore ekuma1990, DC arc furnace ichishandisa 1 mudzi wegraphite electrode yakashandiswa zvakanyanya pasi rose kuma90s (2 ine mamwe magraphite electrode DC arc furnace).
Kuderedza zvakanyanya kushandiswa kwemagraphite electrode ndiyo mukana mukuru weDC arc furnace, makore eku1970 asati apera, AC arc furnace patani yekudyiwa kwesimbi yegraphite electrode mu5 ~ 8kg, mutengo wegraphite electrode wakaverengera 10% yemari yese yesimbi kusvika 15%, kunyangwe yakatorwa huwandu hwematanho ekugadzira magirafu kana 4 kg, kugadzirwa kwemagetsi. yakaverengerwa 7% 10%, kushandiswa kwesimba repamusoro uye ultra high power steelmaking nzira, electrode yak yakaderedzwa kusvika 2 ~ 3k.g / T simbi, DC arc furnace inoshandisa chete 1 graphite electrode, graphite electrode kushandiswa kunogona kuderedzwa kusvika 1.5kg / T simbi pasi.
Zvose dzidziso uye maitiro zvinoratidza kuti kushandiswa kumwe chete kwe graphite electrode kunogona kuderedzwa ne 40% kusvika 60% kana ichienzaniswa ne AC arc furnace.
Nguva yekutumira: Chivabvu-06-2022