Isano iri hagati y'imiterere y'umubiri n'iya shimi ya electrode za grafiti n'ikoreshwa ry'icyuma gikoreshwa mu gukora ibyuma mu itanura ry'amashanyarazi

Gukora ibyuma by'umuriro w'amashanyarazi bishingiye kuelectrodegukora imirasire, kugira ngo ingufu z'amashanyarazi zihindurwemo ingufu z'ubushyuhe muri iyo mirasire, gushongesha umuriro w'itanura no gukuraho imyanda nka sulfur na fosifore, kongeramo ibintu bikenewe (nka karuboni, nikeli, manganese, nibindi) kugira ngo icyuma cyangwa aloyi bishongeshwe bifite imiterere itandukanye. Gushyushya ingufu z'amashanyarazi bishobora kugenzura neza ubushyuhe bw'itanura no gutanga umwuka mubi w'ubushyuhe buke. Ubushyuhe bw'itanura rikora ibyuma rya arc buri hejuru y'ubw'icyuma gihindura ubushyuhe.

Iterambere ry'ikoranabuhanga rifite amateka y'imyaka igera ku 100 mu bucukuzi bw'ibyuma bya EAF, nubwo ubundi buryo buhora buhura n'ibibazo byo gukora ibyuma n'ihiganwa, cyane cyane ingaruka zo gukora ibyuma bya ogisijeni ku buryo buhanitse, ariko igipimo cy'umusaruro w'ibyuma bya EAF ku isi mu bucukuzi bw'ibyuma kiracyazamuka uko umwaka utashye. Mu ntangiriro z'imyaka ya 1990, ibyuma byakozwe na EAF ku isi byagize 1/3 cy'umusaruro wose w'ibyuma. Mu bihugu bimwe na bimwe, EAF yari ikoranabuhanga rikomeye mu gukora ibyuma mu bihugu bimwe na bimwe, kandi igipimo cy'ibyuma byakozwe na EAF mu gushonga cyari hejuru ya 70% ugereranyije n'ibyo mu Butaliyani.

Mu myaka ya 1980, mu gihe EAF yakoraga ibyuma mu buryo bukomeza gucukurwa, buhoro buhoro hashyizweho "uburyo bwo kuzigama ingufu z'ibikoresho bishyushya icyuma gishyushya icyuma gitunganya icyuma gikomeza gucukurwa, icyuma gikomeza gucukurwa, icyuma gikomeza gucukurwa, icyuma gikoreshwa cyane cyane mu gukora ibikoresho byihuse nk'ibikoresho fatizo byo gukora icyuma. Kugira ngo habeho guhangana n'ihindagurika ry'icyuma gishyushya ...Hagati mu myaka ya 1990, itanura rya DC arc rikoresha umuzi umwe gusa wa electrode ya grafiti ryakoreshejwe cyane ku isi mu myaka ya za 90 (2 hamwe na electrode ya grafiti ya DC arc).

Kugabanya cyane ikoreshwa rya electrode za grafiti ni inyungu ikomeye y’itanura rya DC arc, mbere y’impera za 1970, itanura rya AC arc kuri toni y’icyuma cya electrode ya grafiti muri 5 ~ 8kg, ikiguzi cya electrode ya grafiti cyagize 10% by’ikiguzi cyose cy’icyuma kigera kuri 15%, nubwo hafashwe ingamba nyinshi, ku buryo ikoreshwa rya electrode ya grafiti ryagabanutse rigera kuri 4 6kg, cyangwa ikiguzi cy’umusaruro cyabaye 7% 10%, ikoreshwa ry’imbaraga nyinshi n’uburyo bwo gukora ibyuma bufite imbaraga nyinshi, electrode yak yagabanutse igera kuri 2 ~ 3k.g / T icyuma, itanura rya DC arc rikoresha electrode 1 ya grafiti gusa, ikoreshwa rya electrode ya grafiti rishobora kugabanuka rigera kuri 1.5kg / T icyuma munsi.

Inyigisho n'imikorere bigaragaza ko ikoreshwa rimwe rya electrode ya grafiti rishobora kugabanukaho 40% kugeza kuri 60% ugereranije n'itanura rya arc AC.