Te hiko kauwhatawhakamahia te nuinga i roto i te hanga maitai EAF. Ko te hanga maitai o te oumu hiko ko te whakamahi i te graphite electrode hei whakauru i te waa ki roto i te oumu. Ko te kaha o te naianei ka whakaputa i te pewa i roto i te hau i te pito o raro o te hiko, ka whakamahia te wera i hangaia e te pewa mo te whakarewa. E ai ki te kaha o te oumu hiko, ka whakamahia nga electrodes graphite me nga diameters rereke. Kia mau tonu ai te whakamahi i nga electrodes, ka hono nga electrodes e te hononga miro hiko. Ko tegraphite electrodemo te hanga maitai he 70-80% o te tapeke o te hiko graphite. 2、 Ka whakamahia i roto i te oumu hiko waiariki maina. Ko tana ahuatanga ko te waahanga o raro o te hiko conductive ka tanumia ki roto i te utu. Na reira, i tua atu i te wera i hangaia e te arc i waenganui i te pereti hiko me te utu, ka puta ano te wera i te parenga o te utu i te wa e haere ana te waa i roto i te utu. 3、 Umu graphitization, oumu whakarewa karaihe me te oumu hiko mo te whakaputa hua graphite he oumu parenga katoa. Ko nga mea kei roto i te oumu ehara i te mea he whakamahana anake, engari he mea whakawera hoki. I te nuinga o te wa, ka whakauruhia te electrode graphite conductive ki roto i te pakitara o te upoko oumu i te pito o te ahi, na reira kaore e pau tonu te hiko hiko.
Ngā āpure tono:
(1) Kei te whakamahia te reira i roto i te hiko arc steelmaking oumu, i te mea he kaiwhakamahi nui ographite electrode. I Haina, ko te whakaputanga o te rino EAF mo te 18% o te whakaputanga rino parakore, a ko te graphite electrode mo te hanga maitai e 70% ~ 80% o te kohinga katoa o te hiko graphite. Ko te hanga hiko oumu hiko ko te whakamahi i te electrode graphite ki te whakauru i te waa ki roto i te oumu, me te whakamahi i te puna wera wera nui i hangaia e te pewa i waenga i te pito o te hiko me te utu ki te rewa.
2) Ka whakamahia i roto i te oumu arc kua rukuhia; te nuinga o te oumu arc submerged mo te whakaputa silicon ahumahi me te ūkuikui kōwhai, me ētahi atu kua tohuhia e te wahi o raro o te electrode conductive tanumia i roto i te tiaki, te hanga i te pewa i roto i te paparanga tiaki, me te whakawera i te utu mā te whakamahi i te pūngao wera. i hangaia e te parenga o te utu ake. Ko te oumu arc kua rukuhia me te teitei ake o naianei e hiahia ana ki te graphite electrode, hei tauira, tata ki te 100kg graphite electrode e hiahiatia ana mo ia hanga 1t silicon, me te 100kg graphite electrode e hiahiatia ana mo ia 1t silicon production Mo te 40 kg o te graphite electrode e hiahiatia ana mo te t kowhai. ūkuikui.
(3) Ka whakamahia mo te oumu aukati; oumu graphitization mo te whakaputa hua graphite, oumu mo te karaihe whakarewa me te oumu hiko mo te whakaputa carbide silicon no te oumu parenga. Ko nga mea kei roto i te oumu he parenga whakawera me te ahanoa whakamahana. Ko te tikanga, ka whakauruhia te hiko kauwhata kawe ki roto i te pakitara o te upoko oumu i te mutunga o te oumu aukati, a ko te hiko kauwhata e whakamahia ana i konei kaore i te pau tonu.
(4) Ka whakamahia hei whakarite i te ahua motuhakehua kauwhata; ka whakamahia hoki te hiko kauwhata kauwhata ki te tukatuka i nga momo hua kauwhata ahua motuhake penei i te riki, te pokepokea, te rihi poti me te tinana whakawera. Hei tauira, i roto i te ahumahi karaihe kiripaka, 10t kauwhata hiko hiko e hiahiatia ana mo ia 1t ngongo whakarewa hiko; 100kg graphite electrode pātea e hiahiatia ana mo ia 1t pereki kiripaka.
Wā tuku: Maehe-04-2021