Ana amfani da ƙwanƙwasa graphite sau da yawa wajen samar da ƙarfe da kayan aikin semiconductor. Don yin ƙarfe da kayan aikin semiconductor sun isa wani tsabta kuma rage yawan ƙazanta, ana buƙatar graphite foda tare da babban abun ciki na carbon da ƙananan ƙazanta. A wannan lokacin, wajibi ne don cire ƙazanta daga graphite foda yayin aiki. Yawancin abokan ciniki ba su san yadda za su magance ƙazanta a cikin graphite foda ba. A yau, Furuite Graphite Editan zai yi magana game da tukwici don cire ƙazanta a cikin graphite foda daki-daki:
A lokacin da samar da graphite foda, ya kamata mu tsananin sarrafa abun ciki na datti daga zabin albarkatun kasa, zabi albarkatun kasa tare da low ash abun ciki, da kuma hana karuwa da ƙazanta a kan aiwatar da graphite foda. Oxides na abubuwa masu ƙazanta da yawa suna lalacewa koyaushe kuma suna fitar da su a babban zafin jiki, don haka tabbatar da tsabtar foda mai graphite.
A lokacin da samar da janar graphitized kayayyakin, tanderu core zafin jiki kai game da 2300 ℃ da saura najasa abun ciki ne game da 0.1% -0.3%. Idan zafin wutar tanderun ya tashi zuwa 2500-3000 ℃, abubuwan da suka rage na ƙazanta za su ragu sosai. Lokacin samar da graphite foda kayayyakin, man fetur coke tare da low ash abun ciki yawanci amfani a matsayin juriya abu da kuma rufi abu.
Ko da graphitization zafin jiki ne kawai ƙara zuwa 2800 ℃, wasu ƙazanta ne har yanzu wuya a cire. Wasu kamfanoni suna amfani da hanyoyi irin su raguwar wutar lantarki da kuma ƙara yawan adadin yanzu don cire foda mai graphite, wanda ke rage fitarwa na graphite foda tanderu kuma yana ƙara yawan wutar lantarki. Saboda haka, a lokacin da zafin jiki na graphite foda tanderu ya kai 1800 ℃, tsarkake gas, kamar chlorine, freon da sauran chlorides da fluorides, da aka gabatar, kuma shi ya ci gaba da kara da dama sa'o'i bayan ikon gazawar. Wannan shi ne don hana ƙazantattun ƙazanta daga yaɗuwa zuwa cikin tanderu ta wata hanya dabam, da kuma fitar da sauran tsarkakakkun iskar gas daga ramukan graphite foda ta hanyar gabatar da wasu nitrogen.
Lokacin aikawa: Janairu-06-2023