Igrafu esithe tye ihlala isetyenziswa kwimveliso yensimbi kunye nezixhobo ze-semicondcuctor. Ukwenzela ukuba wenze izixhobo zensimbi kunye ne-semicondcuctor fikelela ubunyulu obuthile kwaye unciphise inani lokungcola, ipostite powder ngomxholo wekhabhoni ephezulu kunye nokungcola okuphantsi kuyafuneka. Ngeli xesha, kubalulekile ukususa ukungcola kwigrafu yegrafu ngexesha lokuqhutywa. Abathengi abaninzi abazi ukuba bajamelane njani nokungcola kwi-phydite powder. Namhlanje, umhleli wegrafu ye-sugouite uya kuthetha malunga neengcebiso zokususa ukungcola kwigrafu i-phydite powder ngokweenkcukacha:
Xa sivelisa umgubo wegraphiriya, kufuneka silawule ngokungqongqo umxholo wokungcola ekukhetheni izinto ezingafunekiyo, khetha izinto eziluhlaza ngomxholo we-ASH ephantsi, kwaye kuthintele ukwanda kwenkqubo yegrafu yegrafu. Ii-oxidas zezinto ezininzi zokungcola zihlala ziqaqanjelwa kwaye zikhutshiwe kubushushu obuphezulu, ngenxa yoko ziqinisekisa ubunyulu bohlobo lwegrafu evelisiweyo.
Xa ivelisa iimveliso zegrafireyitha ngokubanzi, iqondo lobushushu lesithando seqondo lokufika lifikelela malunga ne-2300 ℃ kunye nomxholo ongasasebenziyo ungamalunga ne-0.1% -0.3%. Ukuba iqondo lobushushu lesithando liphakanyiswe kwi-2500-3000 ℃, umxholo wokungcola okushiyekileyo kuya kuncitshiswa kakhulu. Xa ivelisa iimveliso zomgubo wegrafu, i-Petroleum Coke yomxholo we-Ash esezantsi ihlala isetyenziswa njengezinto zokuxhathisa kunye nezinto zokufakwa.
Nokuba iqondo lobushushu legrafiki linyuswa laya kuthi ga kwi-2800 ℃, ezinye izinto ezingcolileyo zisekunzima ukuyisusa. Ezinye iinkampani zisebenzisa iindlela ezifana nokuthoba iziko lezixhobo kunye nokwandisa uxinano lwangoku lokukhupha i-graphy ye-graphy ye-graphy kwaye unyuse ukusetyenziswa kwamandla. Ke ngoko, xa iqondo lobushushu lemifanekiso yegrafiki ifikelela kwi-1800 ℃, igesi ehlanjululwe, i-fllorine, i-floon kunye nezinye ii-chlorides, kwaye ziyaqhubeka zongezwa iiyure ezininzi emva kokungaphumeleli kwamandla. Oku kukuthintela ukungcola okuphezulu kubuhlungu kwiziko kwelinye icala, kwaye ukugxotha igesi ehlanjululwe kuyo kwi-pores ye-nitrogen.
IXESHA LOKUQALA: UJan-06-2023