Mmekọrịta dị n'etiti anụ ahụ na kemịkal nke electrodes graphite na oriri nke ọkụ ọkụ eletrik

Igwe ọkụ ọkụ eletrik na-arụ ọrụ ncharaelectrodesiji mepụta arcs, nke mere na ọkụ eletrik nwere ike gbanwee ka ọ bụrụ ike ọkụ na arc, na-agbaze ibu ọkụ na iwepụ adịghị ọcha dị ka sọlfọ na phosphorus, na-agbakwụnye ihe ndị dị mkpa (dịka carbon, nickel, manganese, wdg) iji gbazee ígwè ma ọ bụ alloy. dị iche iche Njirimara. Igwe ọkụ ọkụ eletrik nwere ike ịchịkwa okpomọkụ nke ọkụ ọkụ nke ọma ma mepụta gas na-ekpo ọkụ dị ala. Okpomọkụ dị ọkụ nke arc steelmeking oven dị elu karịa nke onye ntụgharị.

Mmepe teknụzụ nwere akụkọ ihe mere eme nke ihe dị ka afọ 100 na nchara EAF, ọ bụ ezie na ụzọ ndị ọzọ na-eche ihe ịma aka na asọmpi na-eche ihu mgbe niile, ọkachasị nsonaazụ ikuku oxygen dị elu, mana oke nke mmepụta nchara nke EAF steelmaking n'ụwa ka na-abawanye afọ. site n'afọ. Na mmalite 1990s, ígwè nke EAF mepụtara n'ụwa bụ 1/3 nke ngụkọta nchara. Na mba ụfọdụ, EAF bụ teknụzụ na-eme nchara n'ụfọdụ mba, na nha nchara nke EAF na-agbaze bụ 70% dị elu karịa nke ahụ na Italy.

N'afọ 1980, ebe niile na mmepụta ígwè EAF na nkedo na-aga n'ihu, wee jiri nwayọọ nwayọọ mepụta usoro mmepụta ike nke ọkụ ọkụ eletrik na-ekpo ọkụ na-agbaze ihe na-eme ka ọ bụrụ ihe na-eme ka ọ bụrụ ihe na-aga n'ihu, a na-eji ọkụ ọkụ arc eme ihe ngwa ngwa ngwa ngwa dị ka raw. ihe eji eme ígwè. Iji mebie ultra high power AC arc oven arc enweghị akwusi ike, ike ọkọnọ nke atọ na enweghị oke ugbu a na mmetụta siri ike na grid ọkụ na nyocha nke DC arc oven, wee tinye ya na ngwa ụlọ ọrụ na narị afọ mbụ.n'etiti 1990s, DC arc oku na-eji nanị 1 mgbọrọgwụ nke graphite electrode ka ọtụtụ ebe n'ụwa na 90s (2 na ụfọdụ graphite electrode DC arc ọkụ).

Mbelata nke ukwuu oriri nke graphite electrodes bụ kasị ukwuu uru nke DC arc ọkụ, tupu ọgwụgwụ nke 1970s, AC arc oven kwa ton nke ígwè oriri nke graphite electrode na 5 ~ 8kg, graphite electrode akwụ ụgwọ maka 10% nke ngụkọta ọnụ. nke ígwè na 15%, ọ bụ ezie na e were ọtụtụ jikoro, nke mere na graphite electrode oriri belatara 4 6kg, ma ọ bụ mmepụta ụgwọ gua 7% 10%, ojiji nke elu ike na ultra ike steelmaking usoro, electrode yak na-ebelata. na 2 ~ 3k.g / T ígwè, DC arc ọkụ nke na-eji naanị 1 graphite electrode, graphite electrode oriri nwere ike ibelata 1.5kg / T ígwè n'okpuru.

Ma tiori na omume na-egosi na otu oriri nke graphite electrode nwere ike ibelata site 40% ka 60% ma e jiri ya tụnyere AC arc ọkụ.