Graphite elekitirodi amatanthauza petroleum coke, singano coke monga zopangira, malasha phula zomatira, pambuyo zopangira calcined, wosweka akupera, kusakaniza, kusinja, akamaumba, calcination, impregnation, graphite ndi makina processing ndi zopangidwa ndi mtundu wa kukana kutentha kwa graphite conductive zakuthupi, wotchedwa yokumba graphite elekitirodi (pano amatchedwa graphite elekitirodi), kusiyanitsa izo ku graphite zachilengedwe monga zopangira kukonzekera zachilengedwe graphite elekitirodi. Malinga ndi index yake yapamwamba, imatha kugawidwa mumagetsi wamba a graphite electrode, electrode yamphamvu kwambiri ya graphite ndi elekitirodi yapamwamba kwambiri ya graphite.
Mphamvu yapamwamba ya graphite electrode imapangidwa ndi mafuta apamwamba kwambiri a petroleum coke (kapena otsika singano coke) kupanga, nthawi zina thupi la electrode liyenera kulowetsedwa, mphamvu zake zakuthupi ndi zamakina zimakhala zapamwamba kuposa mphamvu wamba ya graphite electrode, monga kutsika kwa resistivity, kulola chokulirapo. kachulukidwe panopa.
Mkulu mphamvu graphite elekitirodi amalola kugwiritsa ntchito kachulukidwe panopa 18 ~ 25A/cm2 graphite elekitirodi, makamaka ntchito mkulu mphamvu arc ng'anjo zitsulo kupanga.
Kupanga zitsulo za ng'anjo yamagetsi ndikugwiritsa ntchito kwambiri ma electrode a graphite. Kutulutsa kwachitsulo cha eAF ku China kumapanga pafupifupi 18% ya zitsulo zosapangana, ndipo ma elekitirodi a graphite omwe amagwiritsidwa ntchito popanga zitsulo amakhala 70% ~ 80% ya kuchuluka kwa electrode ya graphite. Electric ng'anjo steelmaking ndi ntchito graphite elekitirodi mu ng'anjo yamakono, kugwiritsa ntchito monyanyira magetsi ndi mlandu pakati arc kwaiye gwero kutentha kutentha kwa smelting.
-arc ng'anjo imagwiritsa ntchito kupanga mafakitale achikasu phosphorous ndi silicon, etc., khalidwe lake ndi gawo lapansi la electrode conductive kuikidwa mu ng'anjo yamoto, arc anapanga mkati mwa zinthu wosanjikiza, ndikugwiritsa ntchito ng'anjo yotentha yokha kuchokera kukana. wa mphamvu kutentha kwa Kutentha ng'anjo mlandu, mmodzi wa mkulu kachulukidwe panopa chofunika - Arc ng'anjo ayenera graphite elekitirodi, monga pakachitsulo 1 t pa kupanga kumwa graphite elekitirodi ndi za 100 makilogalamu, Pafupifupi 40kg graphite elekitirodi chofunika kubala 1t. phosphorous yachikasu.
Ng'anjo ya graphitization yopanga zinthu za graphite, ng'anjo yosungunuka ya galasi losungunuka ndi ng'anjo yamagetsi yopangira silicon carbide ndi ya ng'anjo yotsutsa. Zomwe zili mu ng'anjo ndizomwe zimatenthetsa kutentha komanso kutentha kwa chinthu. Kawirikawiri, conductive graphite elekitirodi ndi ophatikizidwa mu ng'anjo khoma kumapeto kwa ng'anjo kukana, ndi graphite elekitirodi ntchito discontinuous mowa pano.
Elekitirodi yopanda kanthu ya graphite imagwiritsidwanso ntchito pokonza ma crucible osiyanasiyana, nkhungu, bwato ndi kutentha thupi ndi zinthu zina zapadera za graphite. Mwachitsanzo, mu makampani opanga magalasi a quartz, 10T ya graphite electrode billet imafunika pa 1T iliyonse yamagetsi opangira fuse chubu; 100kg ya graphite elekitirodi billet ndiyofunika kupanga 1t quartz njerwa.
Kuyambira kumayambiriro kwa gawo lachinayi la 2016, ndikulimbikitsanso ndondomeko za kusintha kwazitsulo m'makampani achitsulo ndi zitsulo, kusokoneza zitsulo zapansi mwadzidzidzi kwakhala chinthu chofunika kwambiri pochotsa mphamvu zobwerera mmbuyo. Pa Januware 10, 2017, Wachiwiri kwa Mtsogoleri wa National Development and Reform Commission adati pamsonkhano wa 2017 Council wa CISA kuti mipiringidzo yonse yapansi iyenera kuchotsedwa pasanafike June 30, 2017. , pomwe matani 86.6 miliyoni anali kupanga ndipo matani 15.6 miliyoni anali osapanga. Pofika kumapeto kwa Okutobala 2017, mphamvu yopanga eAF inali pafupifupi matani 26.5 miliyoni, pomwe pafupifupi 30% idayambiranso. Kukhudzidwa ndi kuchepetsa mphamvu ya ng'anjo yapakati pafupipafupi, zitsulo zamagetsi zamagetsi zimayambika mwachangu, ndipo phindu lachuma la chitsulo cha ng'anjo yamagetsi ndi lodziwika bwino. Chitsulo cha ng'anjo yamagetsi chimakhala ndi kufunikira kwabwino kwamagetsi apamwamba kwambiri komanso ma elekitirodi apamwamba kwambiri a graphite, komanso chidwi chogula.
Mu 2017, mtengo wapakhomo wa ma elekitirodi a graphite udakwera kwambiri, ndipo kufunika kwa kutsidya kwa nyanja kunakwera. Misika yapakhomo ndi yakunja konse idabwerera ku chitukuko. Ku China, chifukwa cha chilolezo cha "chitsulo chapansi", kuwonjezeka kwa ng'anjo yamagetsi yamagetsi, kuchepetsa chitetezo cha chilengedwe cha makampani a carbon ndi zinthu zina, mtengo wamtengo wapatali wa graphite electrode unakwera mu 2017, zomwe zikusonyeza kuti msika wamagetsi wa graphite uli mkati. kusowa kochepa. Pa nthawi yomweyo, China graphite elekitirodi kukula zikusonyeza kuti kunja graphite elekitirodi kufunika ndi wamphamvu. Zapakhomo ndi zakunja zawonetsa kufunikira kwakukulu kwa maelekitirodi a graphite, makampani akadali osowa.
Chifukwa chake, kukopa kwachuma kwamakampani opanga ma graphite elekitirodi akadali amphamvu.
Ndi chitukuko cha makampani padziko lonse chitsulo ndi zitsulo, magetsi Arc ng'anjo pang'onopang'ono lalikulu, kopitilira muyeso-mkulu mphamvu ndi kompyuta basi kulamulira ndi mbali zina za chitukuko, ntchito mkulu mphamvu magetsi arc ng'anjo ikuwonjezeka, kulimbikitsa ntchito mkulu mphamvu graphite elekitirodi. .
Poyerekeza ndi United States, Europe, Japan ndi mayiko ena otukuka ndi zigawo, China mkulu mphamvu graphite elekitirodi makampani anayamba mochedwa, makamaka kudalira kunja koyambirira, kupanga mkulu mphamvu graphite elekitirodi kutali kufunika. Motsogozedwa ndi chitukuko cha chitsulo ndi zitsulo makampani ndi kupita patsogolo luso, China pang'onopang'ono anathyola ulamuliro waumisiri mayiko akunja, ndi mphamvu kupanga mkulu mphamvu graphite elekitirodi wakhala kukwera, ndipo khalidwe mankhwala wakhalanso mofulumira bwino. Pakalipano, magetsi apamwamba a graphite electrode opangidwa ku China apeza zotsatira zabwino mu ng'anjo yayikulu yamagetsi yamagetsi, ndipo zizindikiro zonse zogwirira ntchito za mankhwalawa zimatha kufika pamlingo wotsogola padziko lonse lapansi. China mkulu mphamvu graphite elekitirodi mankhwala osati kupereka msika zoweta, komanso chiwerengero chachikulu cha katundu ku mayiko akunja, kufunika kwa katundu kunja ndi zochepa.
Kukula kwa zitsulo za ng'anjo ku mphamvu yapamwamba ndi njira yofunikira pa chitukuko cha mafakitale opanga zitsulo zamagetsi. M'tsogolomu, linanena bungwe la mkulu mphamvu magetsi ng'anjo steelmaking adzawonjezeka, ndipo kufunika ake mkulu mphamvu graphite elekitirodi adzawonjezeka, kulimbikitsa kupanga mkulu mphamvu graphite elekitirodi ku China. Mabizinesi apanyumba apamwamba amagetsi amagetsi amagetsi amatha kukulitsa unyolo wamafakitale, kuchita kafukufuku ndi chitukuko cha zida zopangira, ndikupanga zida zopangira, zomwe zitha kuchepetsa mtengo wamabizinesi ndikuwongolera phindu labizinesi.
Nthawi yotumiza: May-31-2022