N’chifukwa chiyani ma electrode a graphite amphamvu kwambiri ndi okwera mtengo kwambiri?

Mtengo wokwera wa ma electrode a graphite amphamvu kwambiri umachokera makamaka ku mtengo wawo wapamwamba wa zinthu zopangira, njira zovuta zopangira, ubwino waukulu wa magwiridwe antchito, komanso mphamvu ya kufunikira kwa zinthu. Kusanthula mwatsatanetsatane kuli motere:

1. Mitengo Yaikulu ya Zinthu Zopangira
   Zipangizo zazikulu zopangira ma electrode a graphite amphamvu kwambiri ndi needle coke ndi petroleum coke, ndipo needle coke ndiye chinthu chofunikira kwambiri. Needle coke ili ndi kapangidwe ka ulusi, kutentha kochepa, komanso kusavuta kwa graphitization, zomwe zimapangitsa kuti ikhale chinthu choyenera kupanga ma electrode a graphite amphamvu kwambiri kapena amphamvu kwambiri. Komabe, njira yake yopangira ndi yovuta, yokhala ndi zopinga zambiri zaukadaulo, ndipo kupezeka kwapadziko lonse lapansi kumakhalabe kochepa, zomwe zimapangitsa kuti mitengo ikhale yokwera nthawi zonse. Kuphatikiza apo, petroleum coke, chinthu china chofunikira kwambiri, chimakhudzidwa ndi kufunikira kwa msika komanso kusinthasintha kwa mitengo yamafuta osakonzedwa, ndi mitengo ikukwera m'zaka zaposachedwa. Kukwera kwa mitengo yazinthu zopangira izi kumakweza mwachindunji ndalama zopangira ma electrode a graphite amphamvu kwambiri.

2. Njira Zopangira Zovuta
   Kupanga ma electrode a graphite amphamvu kwambiri kumaphatikizapo magawo angapo, kuphatikizapo calcination ya zinthu zopangira, kusakaniza, kupanga, kuphika, kuyikamo, graphitization, ndi makina. Gawo lililonse limafuna kuwongolera mwamphamvu magawo a njira kuti zitsimikizire kuti zinthu zili bwino. Graphitization, gawo lofunika kwambiri, limafuna kukonzedwa kutentha kopitilira 2,000°C kuti kusinthe kapangidwe ka zinthu za carbon kukhala makristasi a graphite, kukulitsa mphamvu zamagetsi komanso kukana kutentha kwambiri. Njirayi sikuti imangofuna mphamvu zokha komanso imafuna ndalama zambiri pazida, zomwe zimawonjezera ndalama zopangira.

3. Ubwino Wofunika Kwambiri Wogwira Ntchito
   Ma electrode a graphite amphamvu kwambiri amakhala ndi makhalidwe abwino kwambiri, monga kukana pang'ono, kukhuthala kwakukulu, kukana okosijeni, kulekerera kutentha kwambiri, komanso kugwiritsa ntchito pang'ono. Kukana kwawo nthawi zambiri kumakhala pakati pa 4-6 μΩ·m, zomwe zimathandiza kuti magetsi aziyenda bwino mu uvuni wamagetsi kuti apange kutentha kokwanira kuti zitsulo zisungunuke ndi kuyengedwa. Poyerekeza ndi ma electrode amagetsi wamba ndi amphamvu kwambiri, mitundu yamagetsi amphamvu kwambiri imatha kupirira kuchulukira kwa mphamvu zamagetsi, kuchepetsa nthawi yosungunula zitsulo zotsala, kuchepetsa kugwiritsa ntchito magetsi, komanso kukonza bwino ntchito yopanga. Ubwino wa magwiridwe antchito awa umayendetsa kugwiritsa ntchito kwawo kwambiri popanga zitsulo, kupanga phosphorous yachikasu, kusungunula silicon m'mafakitale, ndi magawo ena, zomwe zimapangitsa kuti msika ukhale wofunikira kwambiri.

4. Mphamvu Zofunikira Zopereka
   M'zaka zaposachedwapa, kuyambiranso kwa makampani opanga zitsulo padziko lonse lapansi komanso kukula mwachangu kwa magawo atsopano amagetsi ndi zinthu zapamwamba kwapangitsa kuti pakhale kufunikira kwakukulu kwa ma electrode a graphite amphamvu kwambiri. Komabe, chifukwa cha kuchepa kwa zinthu zopangira komanso njira zovuta zopangira, kukula kwa zotuluka kwakhala kocheperako, zomwe zikuwonjezera kufunikira kwa zinthu. Potengera izi, mitengo ya ma electrode a graphite amphamvu kwambiri yakwera mwachibadwa.