Koob tshuaj coke yog ib hom khoom zoo uas tau tsim los ntawm cov khoom siv carbon. Nws zoo li cov khoom khov kho uas muaj cov xim grey nyiaj thiab cov xim hlau ci ntsa iab. Nws cov qauv muaj cov qauv ntws pom tseeb, nrog cov qhov loj tab sis ob peb lub qhov thiab cov duab me ntsis oval. Nws yog cov khoom siv raw rau kev tsim cov khoom siv carbon zoo xws li cov electrode muaj zog heev, cov khoom siv carbon tshwj xeeb, carbon fiber thiab nws cov khoom sib xyaw.
Raws li cov ntaub ntawv tsim khoom sib txawv, cov coke koob muaj peev xwm muab faib ua roj series thiab thee series ob hom koob coke. Cov koob coke tsim los ntawm cov roj av seem ua cov khoom siv raw yog roj series koob coke. Cov thee ntsuas koob coke tsim los ntawm cov thee tar pitch thiab nws cov feem hu ua thee ntsuas koob coke.
Cov ntsuas uas cuam tshuam rau qhov zoo ntawm cov koob coke suav nrog qhov tseeb ceev, cov ntsiab lus sulfur, cov ntsiab lus nitrogen, cov ntsiab lus volatile, cov ntsiab lus tshauv, cov coefficient expansion thermal, hluav taws xob resistivity, vibration-khoom density, thiab lwm yam. Vim yog cov ntsuas ntsuas sib txawv, koob coke tuaj yeem faib ua qib super (qib zoo dua), qib thawj thiab qib thib ob.
Qhov sib txawv ntawm kev ua tau zoo ntawm cov thee ntsuas koob coke thiab cov roj ntsuas koob coke suav nrog cov ntsiab lus hauv qab no.
1. Nyob rau hauv tib lub xeev, lub graphite electrode ua los ntawm roj series koob coke yog yooj yim dua los tsim dua li cov koob koob coke hauv kev ua tau zoo.
2. Tom qab cov khoom graphite raug ua tiav, cov khoom graphitized ntawm cov roj series koob coke muaj qhov ceev thiab lub zog siab dua li ntawm cov koob koob coke, uas yog tshwm sim los ntawm kev nthuav dav ntawm cov koob koob coke thaum lub sijhawm graphitization.
3. Hauv kev siv tshwj xeeb ntawm graphite electrode, cov khoom graphitized nrog roj koob coke muaj cov coefficient qis dua ntawm kev nthuav dav thermal.
4. Hais txog cov ntsuas lub cev thiab tshuaj lom neeg ntawm graphite electrode, qhov kev tiv thaiv tshwj xeeb ntawm cov khoom graphitized ntawm cov roj series koob coke yog me ntsis siab dua li ntawm cov thee series koob coke khoom.
5. Qhov tseem ceeb tshaj plaws yog tias cov thee ntsuas koob coke nthuav dav thaum lub sijhawm ua graphitization kub siab, thaum qhov kub nce mus txog 1500-2000 ℃, yog li qhov kub nce ceev yuav tsum tau tswj hwm nruj me ntsis, tsis txhob kub sai, nws yog qhov zoo tshaj plaws kom tsis txhob siv cov txheej txheem graphitization series, cov thee ntsuas koob coke los ntawm kev ntxiv cov khoom ntxiv los tswj nws qhov kev nthuav dav, qhov nrawm nthuav dav tuaj yeem txo qis. Tab sis nws nyuaj dua los ua tiav cov roj - raws li koob coke.
6. Lub tshuab roj calcined muaj cov ntsiab lus coke me dua thiab cov noob me dua, thaum lub koob ntsuas thee muaj cov ntsiab lus coke tsawg dua thiab cov noob loj dua (35-40 hli), uas tuaj yeem ua tau raws li qhov xav tau ntawm cov mis, tab sis ua rau muaj teeb meem rau tus neeg siv khoom.
7. Raws li Nyiv Petroleum Coke Company, nws tau txiav txim siab tias cov khoom sib xyaw ntawm cov roj series koob coke yooj yim dua li ntawm cov koob koob coke, yog li nws yooj yim los tswj thaum lub sijhawm coking.
Los ntawm qhov kev xav saum toj no, cov roj system koob coke muaj plaub qhov qis: qhov hnyav tshwj xeeb qis, lub zog qis, CTE qis, kev tiv thaiv tshwj xeeb qis, thawj ob qho khoom graphite qis, ob qho khoom graphite kawg qis yog qhov zoo. Feem ntau hais lus, cov ntsuas kev ua tau zoo ntawm cov roj series koob coke zoo dua li cov ntawm cov koob koob coke, thiab qhov kev thov ntau dua.
Tam sim no, graphite electrode yog lub khw muag khoom tseem ceeb ntawm cov koob coke, suav txog li 60% ntawm tag nrho cov ntawv thov ntawm cov koob coke, thiab cov tuam txhab electrode muaj kev xav tau meej rau qhov zoo ntawm cov koob coke, tsis muaj kev thov zoo rau tus kheej. Cov khoom siv roj teeb lithium ion anode muaj ntau yam kev xav tau rau koob coke, kev lag luam digital siab nyiam cov roj coke siav, kev lag luam roj teeb fais fab ntau dua nyob ntawm cov coke nyoos pheej yig dua.
Kev tsim cov koob coke muaj qee qhov kev txwv kev txawj ntse, yog li muaj ob peb lub tuam txhab hauv tsev. Tam sim no, cov chaw tsim khoom siv roj hauv tsev tseem ceeb suav nrog Shandong Jingyang, Shandong Yida, Jinzhou Petrochemical, Shandong Lianhua, Bora Biological, Weifang Fumei New Energy, Shandong Yiwei, Sinopec Jinling Petrochemical, Maoming Petrochemical, thiab lwm yam. Cov neeg tsim khoom tseem ceeb ntawm cov thee ntsuas koob coke yog Baowu Carbon Material, Baotailong Technology, Anshan Kaitan, Angang Chemical, Fang Daxi Kemo, Shanxi Hongte, Henan Kaitan, Xuyang Group, Zaozhuang Zhenxing, Ningxia Baichuan, Tangshan Dongri New Energy, Taiyuan Shengxu, thiab lwm yam.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-02-2022