I-Graphite crucible ivame ukusetshenziswa ekukhiqizweni kwezinto zensimbi neze-semiconductor. Ukuze izinto zensimbi neze-semiconductor zifinyelele ubumsulwa obuthile futhi zinciphise inani lokungcola, kudingeka i-graphite powder enokuqukethwe okuphezulu kwekhabhoni kanye nokungcola okuphansi. Ngalesi sikhathi, kuyadingeka ukususa ukungcola ku-graphite powder ngesikhathi sokucubungula. Amakhasimende amaningi awazi ukuthi angabhekana kanjani nokungcola ku-graphite powder. Namuhla, uMhleli we-Furuite Graphite uzokhuluma ngamathiphu okususa ukungcola ku-graphite powder ngokuningiliziwe:
Lapho sikhiqiza i-graphite powder, kufanele silawule ngokuqinile okuqukethwe kokungcola okuvela ekukhetheni izinto zokusetshenziswa, sikhethe izinto zokusetshenziswa ezinomlotha ophansi, futhi sivimbele ukwanda kokungcola enkambisweni yokucubungula i-graphite powder. Ama-oxide ezinto eziningi zokungcola ahlala ebola futhi ahwamuka ekushiseni okuphezulu, ngaleyo ndlela siqinisekise ubumsulwa be-graphite powder ekhiqizwayo.
Uma kukhiqizwa imikhiqizo ejwayelekile eyenziwe nge-graphitized, izinga lokushisa elingaphakathi kwesithando somlilo lifinyelela cishe ku-2300℃ kanti okuqukethwe okusele kokungcola kungaba ngu-0.1%-0.3%. Uma izinga lokushisa elingaphakathi kwesithando somlilo likhuphukela ku-2500-3000℃, okuqukethwe kokungcola okusele kuzoncishiswa kakhulu. Uma kukhiqizwa imikhiqizo yempuphu ye-graphite, i-petroleum coke enokuqukethwe komlotha okuphansi ivame ukusetshenziswa njengezinto zokumelana nezinto zokuvikela.
Ngisho noma izinga lokushisa le-graphitization likhushulwa nje lifike ku-2800℃, okunye ukungcola kusenzima ukukususa. Ezinye izinkampani zisebenzisa izindlela ezifana nokunciphisa umongo wesithando somlilo kanye nokwandisa ubuningi bamanje ukuze kukhishwe i-graphite powder, okunciphisa umkhiqizo wesithando somlilo se-graphite powder futhi kwandise ukusetshenziswa kwamandla. Ngakho-ke, lapho izinga lokushisa lesithando somlilo se-graphite powder lifika ku-1800℃, igesi ehlanziwe, njenge-chlorine, i-freon kanye namanye ama-chloride kanye ne-fluoride, ifakwa, futhi iyaqhubeka nokwengezwa amahora amaningana ngemva kokwehluleka kwamandla. Lokhu kwenzelwa ukuvimbela ukungcola okuphefumulayo ukuthi kungasabalali esithandweni somlilo ngakolunye uhlangothi, kanye nokukhipha igesi ehlanziwe esele ezimbotsheni ze-graphite powder ngokungenisa i-nitrogen ethile.
Isikhathi sokuthunyelwe: Jan-06-2023