Igrafu esithe tyabaYimveliso ekhethekileyo edlala indima ebalulekileyo kwinkqubo yokucoca yegolide, isilivere, ubhedu kunye nezinye izinto ezixabisekileyo. Nangona abantu abaninzi besenokungaqhelananga nayo, ukuveliswa kwemithwalo yegrafire kubandakanya amanqanaba aliqela antsonkothileyo ukuqinisekisa ukuba umgangatho ophezulu kunye noomatshini bemveliso yokugqibela. Kweli nqaku, siza kuthatha inxaxheba kwiinkcukacha zenqanaba ngalinye elibandakanyeka kwi-phofuy yemveliso ezukisa.
Amanqanaba okuqala okuvelisa igrafu igrafu kubandakanya inkqubo yokomisa. Emva kokuba ithe ibethe tye kwaye ixhaswa impahla yayo yePendants, ihlolwa ngokwemigangatho yemveliso egqityiweyo. Olu gama luqinisekisa ukuba kuphela nje abantu abafanelekileyo kuphela kwinkqubela phambili kumanqanaba alandelayo. Emva kokuhlela, bafumana inkqubo ye-latgoding, apho umhlaba othe tye udibene nelow. Lo mgama welt usebenzela iinjongo ezininzi, kubandakanya ukwandisa ukuxinana kunye namatshini woomatshini bokubethelelwa, ekugqibeleni ukuphucula umgangatho wayo ngokubanzi.
Inqanaba lokudubula yinxalenye ebalulekileyo yenkqubo yokwenziwa. Kubandakanya ukuthoba igrafiki emangabekisileyo kubushushu obuphezulu kwi-kiln, ngoko ke kukomeleza ubume bendawo ethe tye. Le nkqubo ibalulekile ukuqinisekisa ukuqina kunye nokuthembeka kokubethelelwa ngexesha lenkqubo yokucoca. Umgaqo wokudubula unokwahlulahlulwahlulwahlulwahlulwahlulwahlulwahlulwahlulwahlulo oluhlukeneyo olungcono utshintsho olwenzekayo kwisakhiwo esibubumbele kule nkqubo.
Inqanaba lokuqala kukuhamba kwinqanaba lokuduma kunye nokudubula, kwaye iqondo lobushushu kwi-kiln ligcinwa malunga ne-100 ukuya kwi-300 ° C. Okweli nqanaba, ukufuma okushiyekileyo kwisenzo esithe nkqo kuyasuswa ngokuthe ngcembe. Vula isibane se-kiln kwaye unciphise inqanaba lokufudumeza ukuthintela ukutshintsha kweqondo lobushushu ngequbuliso. Ulawulo lobushushu lubalulekile kweli nqanaba, njengokuba umswakama kakhulu onokwenza ukuba kubethe tye ukuchitha okanye ukuqhuma.
Inqanaba lesibini linqanaba lobushushu eliphantsi, kunye neqondo lobushushu lama-400 ukuya kwi-600 ° C. Njengoko i-kiln iyaqhubeka nokuvutha, amanzi adityaniswe ngaphakathi kwetafile ithe qalisa ukuqhekeza kwaye iphume. Izinto eziphambili ze-A12O3 neSio2, ezazibotshelelwe ngaphambili kudongwe, ziqala ukubakho kwi-free State. Nangona kunjalo, kufuneka kuqatshelwe ukuba i-glaze fall kumphezulu wawe obekiwe ayinyibiliki. Ukuthintela nayiphi na into eyothusayo, inqanaba lokufudumeza kufuneka licotha kwaye liqinile. Ukufudumeza ngokukhawuleza kunye nokungalingani ngokungalingani kunokubangela ukuba isibetho sokudubula okanye ukuwa, ukulalanisa kwingqibelelo yayo.
Ukungena kwinqanaba lesithathu, inqanaba lokudubula amaqondo obushushu ahlala lihlala liphakathi kwe-700 ne-900 ° C. Kweli nqanaba, i-amorphous al23 kwi-Clay iguqulwe ngokuyinxenye iba fomu ye-y-alstalline alstalline alstalline alstalline altalline al2. Olu tshintsho luqinisekise ngakumbi ukuphucula ingqibelelo yezitrato ezibethelelwe. Kubalulekile ukugcina ulawulo lobushushu oluchanekileyo ngeli xesha lokuphepha naziphi na iziphumo ezingafanelekanga.
Inqanaba lokugqibela yinqanaba leqondo lokudubula eliphakamileyo lokudubula, kunye neqondo lobushushu ngaphezulu kwe-1000 ° C. Okwangoku, ungqimba lwelow Ekugqibeleni, qinisekisa ukuba indawo enqamlezileyo igudileyo kwaye itywinwe. Amaqondo obushushu aphezulu anegalelo kuqeqesho ngokubanzi kumandla kunye nokuqina.
Konke konke, inkqubo yemveliso yegrafu yegraphite ibandakanya inani eliqela eliqingqiweyo. Ukusuka ekwomesweni kwaye uhlole imveliso egqityiweyo yokugcwala kunye nokudubula, inyathelo ngalinye libalulekile ekuqinisekiseni umgangatho kunye nokuthembeka kwegraficial yefomati. Ukubambelela kumanyathelo okulawula ubushushu kunye nokugcina amaxabiso okufudumeleyo kubalulekile ukuthintela nasiphi na isiphene okanye iingozi. Isiphumo sokugqibela yigrafu esemgangathweni ephezulu enokuthi ikwazi ukumelana nenkqubo engqongqo yokucoca iintsimbi ezixabisekileyo.
IXESHA LOKUGQIBELA: UNv-29-2023