Cov hluav taws xob graphitefeem ntau yog siv rau hauv EAF steelmaking. Hluav taws xob cub tawg steelmaking yog siv graphite electrode los qhia tam sim no rau hauv lub cub tawg. Lub zog tam sim no tsim cov arc tawm los ntawm cov roj ntawm qhov kawg qis ntawm lub electrode, thiab cov cua sov tsim los ntawm arc yog siv rau smelting. Raws li lub peev xwm ntawm lub cub tawg hluav taws xob, graphite electrodes nrog cov kab sib txawv yog siv. Yuav kom ua rau cov electrodes siv tas li, cov electrodes txuas nrog los ntawm electrode threaded sib koom ua ke. Lubgraphite electrodeRau kev ua hlau suav txog 70-80% ntawm tag nrho cov graphite electrode. 2, Nws yog siv rau hauv lub cub tawg thermal fais fab. Nws tus yam ntxwv yog tias qhov qis dua ntawm cov electrode conductive raug faus rau hauv qhov them. Yog li ntawd, ntxiv rau qhov kub uas tsim los ntawm arc ntawm lub phaj hluav taws xob thiab qhov them, qhov kub kuj tseem tsim los ntawm qhov tsis kam ntawm qhov them thaum tam sim no hla dhau qhov them. 3, Lub cub tawg graphitization, lub cub tawg iav yaj thiab lub cub tawg hluav taws xob rau kev tsim cov khoom graphite yog txhua lub cub tawg tsis kam. Cov ntaub ntawv hauv lub cub tawg tsis yog tsuas yog tiv taus cua sov xwb, tab sis kuj yog cov khoom cua sov. Feem ntau, cov electrode graphite conductive raug ntxig rau hauv phab ntsa lub taub hau ntawm qhov kawg ntawm lub qhov cub, yog li cov electrode conductive tsis raug noj tas li.
Cov teb thov:
(1) Nws yog siv rau hauv hluav taws xob arc steelmaking cub tawg, uas yog tus neeg siv loj ntawmgraphite electrodeHauv Suav teb, cov hlau EAF tsim tawm txog li 18% ntawm cov hlau nyoos, thiab cov hluav taws xob graphite rau kev ua hlau suav txog 70% ~ 80% ntawm tag nrho cov kev siv hluav taws xob graphite. Kev ua hlau hluav taws xob yog siv cov hluav taws xob graphite los qhia tam sim no rau hauv lub cub tawg, thiab siv cov cua sov kub siab uas tsim los ntawm lub arc ntawm qhov kawg ntawm lub electrode thiab qhov them rau smelt.
2) Nws yog siv rau hauv lub cub tawg submerged arc; lub cub tawg submerged arc feem ntau yog siv rau kev tsim cov silicon thiab phosphorus daj, thiab lwm yam. nws yog tus cwj pwm los ntawm qhov qis dua ntawm cov electrode conductive raug faus rau hauv qhov them, tsim ib qho arc hauv txheej them, thiab cua sov qhov them los ntawm kev siv lub zog cua sov tsim los ntawm kev tiv thaiv ntawm qhov them nws tus kheej. Lub cub tawg submerged arc nrog qhov ceev tam sim no siab dua xav tau graphite electrode, piv txwv li, kwv yees li 100kg graphite electrode yog qhov xav tau rau txhua 1t silicon ntau lawm, thiab kwv yees li 100kg graphite electrode yog qhov xav tau rau txhua 1t silicon ntau lawm Kwv yees li 40 kg ntawm graphite electrode yog qhov xav tau rau t phosphorus daj.
(3) Nws yog siv rau lub cub tawg tsis kam; lub cub tawg graphitization rau kev tsim cov khoom graphite, lub cub tawg rau melting iav thiab lub cub tawg hluav taws xob rau kev tsim silicon carbide txhua tus koom nrog lub cub tawg tsis kam. Cov ntaub ntawv hauv lub cub tawg yog ob qho tib si cua sov tsis kam thiab cua sov khoom. Feem ntau, lub electrode graphite conductive yog embedded rau hauv lub cub tawg lub taub hau phab ntsa ntawm qhov kawg ntawm lub cub tawg tsis kam, thiab lub electrode graphite siv ntawm no tsis tas li noj.
(4) Nws yog siv los npaj cov duab tshwj xeebcov khoom siv graphite; daim ntawv dawb ntawm graphite electrode kuj tseem siv los ua ntau yam khoom graphite zoo li crucible, pwm, tais nkoj thiab lub cev cua sov. Piv txwv li, hauv kev lag luam iav quartz, xav tau 10t graphite electrode dawb rau txhua 1t hluav taws xob yaj raj; 100kg graphite electrode dawb rau txhua 1t quartz cib.
Lub sijhawm tshaj tawm: Lub Peb Hlis-04-2021