Graphite electrode yog hais txog roj av coke, koob coke ua raw khoom, thee tar rau cov nplaum, tom qab cov khoom siv raw calcined, tawg sib tsoo, sib tov, kneading, molding, calcination, impregnation, graphite thiab mechanical processing thiab ua los ntawm ib hom kub siab tiv taus ntawm graphite conductive khoom, hu ua dag graphite electrode (tom qab no hu ua graphite electrode), kom paub qhov txawv ntawm graphite ntuj ua raw khoom npaj ntawm ntuj graphite electrode. Raws li nws cov ntsuas zoo, nws tuaj yeem muab faib ua lub zog graphite electrode, lub zog graphite electrode siab thiab lub zog graphite electrode ultra-siab.
Cov electrode graphite muaj zog heev yog ua los ntawm cov roj av coke zoo (lossis cov koob coke qis), qee zaum lub cev electrode yuav tsum tau impregnated, nws cov khoom siv lub cev thiab cov khoom siv kho tshuab siab dua li cov electrode graphite muaj zog ib txwm muaj, xws li tsis tshua muaj resistivity, uas ua rau muaj qhov ceev tam sim no loj dua.
Cov hluav taws xob graphite electrode muaj zog heev tso cai rau kev siv cov hluav taws xob graphite electrode uas muaj qhov ceev tam sim no ntawm 18 ~ 25A / cm2, feem ntau yog siv rau hauv kev ua hlau hauv lub cub tawg arc muaj zog heev.
Kev tsim cov hlau hauv lub cub hluav taws xob yog ib qho kev siv loj ntawm cov electrodes graphite. Cov zis ntawm eAF hlau hauv Suav teb suav txog li 18% ntawm cov zis ntawm cov hlau nyoos, thiab cov electrode graphite siv hauv kev tsim cov hlau suav txog 70% ~ 80% ntawm tag nrho cov electrode graphite. Kev tsim cov hlau hauv lub cub hluav taws xob yog kev siv cov electrode graphite rau hauv lub cub hluav taws xob tam sim no, kev siv cov hluav taws xob siab thiab them ntawm cov arc tsim los ntawm qhov kub siab mus rau smelting.
-arc cub tawg feem ntau yog siv rau hauv kev tsim cov phosphorus daj thiab silicon, thiab lwm yam., nws tus cwj pwm yog qhov qis dua ntawm cov electrode conductive faus rau hauv lub cub tawg, arc tsim nyob rau hauv cov khoom txheej, thiab siv lub cub tawg them nws tus kheej los ntawm kev tiv thaiv ntawm lub zog cua sov rau cua sov cub tawg, ib qho ntawm qhov ceev tam sim no xav tau -arc cub tawg xav tau graphite electrode, xws li silicon 1 t ib qho ntau lawm rau kev noj graphite electrode yog li 100 kg, Kwv yees li 40kg ntawm graphite electrode yog qhov xav tau los tsim 1t daj phosphorus.
Lub cub tawg graphite rau kev tsim cov khoom graphite, lub cub tawg yaj rau kev yaj iav thiab lub cub tawg hluav taws xob rau kev tsim cov silicon carbide yog cov khoom siv hluav taws xob. Cov khoom siv hauv lub cub tawg yog ob qho tib si tiv taus cua sov thiab cov khoom cua sov. Feem ntau, cov hluav taws xob graphite conductive tau muab tso rau hauv phab ntsa ntawm lub cub tawg thaum kawg ntawm lub cub tawg tiv taus, thiab cov hluav taws xob graphite siv rau kev siv tsis tu ncua ntawm no.
Lub electrode graphite dawb kuj tseem siv rau kev ua ntau yam crucible, pwm, nkoj thiab lub cev cua sov thiab lwm yam khoom graphite zoo li tshwj xeeb. Piv txwv li, hauv kev lag luam iav quartz, 10T ntawm graphite electrode billet yog qhov xav tau rau txhua 1T ntawm kev tsim hluav taws xob fuse tube; 100kg ntawm graphite electrode billet yog qhov xav tau los tsim 1t quartz cib.
Txij thaum pib ntawm lub quarter thib plaub ntawm xyoo 2016, nrog rau kev txhawb nqa cov cai hloov kho sab kev muab khoom hauv kev lag luam hlau thiab hlau, kev rhuav tshem cov hlau hauv pem teb tau dhau los ua qhov tseem ceeb tshaj plaws hauv kev tshem tawm cov peev xwm tsim khoom rov qab. Thaum Lub Ib Hlis 10, 2017, tus lwm thawj coj ntawm Pawg Neeg Saib Xyuas Kev Txhim Kho thiab Kev Hloov Kho Hauv Tebchaws tau hais ntawm lub rooj sib tham ntawm Pawg Sab Laj xyoo 2017 ntawm CISA tias txhua lub hauv pem teb yuav tsum tau tshem tawm ua ntej Lub Rau Hli 30, 2017. Xyoo 2017, Tuam Tshoj lub peev xwm tag nrho ntawm eAF hlau yog li 120 lab tons, ntawm cov uas 86.6 lab tons tau tsim thiab 15.6 lab tons tau tawm ntawm kev tsim khoom. Txog rau thaum kawg ntawm Lub Kaum Hli 2017, lub peev xwm tsim khoom ntawm eAF yog li 26.5 lab tons, ntawm cov uas kwv yees li 30% tau rov pib dua. Cuam tshuam los ntawm kev txo qis peev xwm ntawm lub cub tawg nruab nrab zaus, cov hlau hluav taws xob tau pib ua haujlwm, thiab cov txiaj ntsig kev lag luam ntawm cov hlau hluav taws xob yog qhov tseem ceeb. Cov hlau hluav taws xob muaj kev thov zoo rau lub zog siab thiab ultra-siab zog graphite electrode, thiab kev txaus siab yuav khoom siab.
Xyoo 2017, tus nqi graphite electrode hauv tebchaws tau nce siab heev, thiab qhov kev thov txawv teb chaws tau nce siab. Kev lag luam hauv tebchaws thiab txawv teb chaws tau rov qab los rau kev vam meej. Hauv Suav teb, vim muaj kev tshem tawm ntawm "hlau pem teb", kev nce ntawm lub peev xwm hluav taws xob arc, kev tiv thaiv ib puag ncig ntawm cov tuam txhab carbon thiab lwm yam, tus nqi graphite electrode hauv tebchaws tau nce siab heev hauv xyoo 2017, qhia tias kev lag luam graphite electrode hauv tebchaws tsis txaus. Tib lub sijhawm, kev loj hlob ntawm graphite electrode hauv Suav teb qhia tau tias kev thov graphite electrode txawv teb chaws muaj zog. Hauv tebchaws thiab txawv teb chaws tau qhia tias muaj kev thov graphite electrodes ntau, kev lag luam tseem tsis txaus.
Yog li ntawd, qhov kev nyiam peev ntawm kev lag luam graphite electrode muaj zog tseem muaj zog.
Nrog rau kev txhim kho ntawm kev lag luam hlau thiab hlau thoob ntiaj teb, hluav taws xob arc cub tawg maj mam mus rau qhov loj, ultra-high zog thiab lub computer tsis siv neeg tswj thiab lwm yam ntawm kev txhim kho, kev siv hluav taws xob hluav taws xob arc cub tawg yog nce ntxiv, txhawb kev siv hluav taws xob graphite electrode siab.
Piv nrog rau Tebchaws Meskas, Tebchaws Europe, Nyiv Pooj thiab lwm lub tebchaws thiab thaj chaw uas tau tsim kho lawm, kev lag luam graphite electrode muaj zog siab hauv Suav teb tau pib lig, feem ntau yog nyob ntawm kev xa khoom tuaj thaum ntxov, kev tsim cov graphite electrode muaj zog siab tsis yog qhov xav tau. Vim yog kev txhim kho kev lag luam hlau thiab hlau thiab kev nce qib ntawm thev naus laus zis, Suav teb tau maj mam rhuav tshem kev tswj hwm thev naus laus zis ntawm cov tebchaws txawv tebchaws, thiab lub peev xwm tsim cov graphite electrode muaj zog siab tau nce siab, thiab qhov zoo ntawm cov khoom kuj tau txhim kho sai. Tam sim no, cov graphite electrode muaj zog siab uas tsim tawm hauv Suav teb tau ua tiav cov txiaj ntsig zoo hauv cov cub hluav taws xob loj, thiab txhua qhov kev ua tau zoo ntawm cov khoom tuaj yeem ncav cuag theem thoob ntiaj teb. Cov khoom graphite electrode muaj zog siab hauv Suav teb tsis yog tsuas yog muab kev lag luam hauv tsev xwb, tab sis kuj tseem muaj ntau cov khoom xa tawm mus rau txawv tebchaws, qhov kev thov rau cov khoom xa tuaj tsawg dua.
Kev txhim kho ntawm kev ua hlau rauv hluav taws xob kom muaj zog siab yog ib qho tseem ceeb ntawm kev txhim kho kev lag luam hlau rauv hluav taws xob. Yav tom ntej, cov khoom tsim tawm ntawm kev ua hlau rauv hluav taws xob yuav nce ntxiv, thiab nws qhov kev thov rau cov hluav taws xob graphite electrode kuj tseem yuav nce ntxiv, txhawb kev tsim cov hluav taws xob graphite electrode hauv Suav teb. Cov tuam txhab hluav taws xob graphite electrode hauv tsev tuaj yeem nthuav dav cov saw hlau kev lag luam, ua kev tshawb fawb thiab kev txhim kho cov khoom siv raw, thiab tsim cov khoom siv tsim khoom, uas tuaj yeem txo cov nqi lag luam thiab txhim kho cov txiaj ntsig kev lag luam.
Lub sijhawm tshaj tawm: Tsib Hlis-31-2022