Ezimbonini ezihlukahlukene, kukhona ukungaqondi kahle okusabalele mayelana nokusetshenziswa kwei-graphite crucible.Abantu abaningi ngephutha bakholelwa ukuthi le mikhiqizo inokubaluleka okuncane emakethe, becabanga ukuthi ayibalulekile.Nokho, lo mbono awunakuba kude neqiniso.Nakuba ama-graphite crucibles angase abonakale anokwakhiwa okulula - okuklanyelwe ukuqukatha uketshezi oluhlukahlukene - ukungabi khona kwawo kungaholela ezinkingeni ezibalulekile kuyo yomibili imikhakha ye-metallurgical kanye namakhemikhali.Ake sihlole izinzuzo ze-graphite crucibles futhi sihlole ukusetshenziswa kwazo okuhlukahlukene.
1. Ukuguquguquka Nokukhuthazela
Enye yezinzuzo ezivelele ze-graphite crucible isekusebenziseni kwazo izinto ezihlukahlukene.Lawa ma-crucibles akhiwe ngokuyinhloko nge-graphite ne-quartz, ehlanganiswe nezinhlanganisela zamakhemikhali ahlukahlukene bese ifakwa ngaphansi kokushisa okuphezulu kokushisa ukuze kukhiqizwe.Lokhu kwakheka okuyingqayizivele kwenza ama-graphite crucibles akwazi ukumelana ne-asidi eningi, i-alkaline, noketshezi olubolayo, okulwenza lube wusizo embonini yamakhemikhali.Ukuhlolwa okubanzi kososayensi kuye kwabonisa ukuthi ngisho ne-aqua regia - ingxube edla kakhulu yama-acids - ingaqukethwe ngokuphephile ngaphakathi kwe-graphite crucibles.
Ngaphezu kwalokho, ama-graphite crucibles abonisa ukumelana nokushisa okuphawulekayo, okukwazi ukumelana nezinga lokushisa elingaphezu kuka-5000 degrees Celsius ngaphandle kokuwohloka okukhulu.Lokhu kuzenza zifanelekele ukuqukatha i-iron encibilikisiwe, i-aluminium, nezinye izinsimbi ngisho nasezimeni zazo eziwuketshezi, okuqinisekisa ukusetshenziswa kwazo ezimbonini ezihlukahlukene.
2. Ikhwalithi Engayekethisi
Izinga le-graphite crucibles lingenye inzuzo ebalulekile.Lawa ma-crucibles aklanyelwe ukumelana nokucindezela okukhulu kwangaphandle, okuwenza amelane kakhulu nezinsongo ngaphandle uma engaphansi kwamandla angaphezu kwamandla azo.Inqubo yokukhiqiza ye-graphite crucible ngayinye inamathela emazingeni aqinile, iqinisekisa ukucaca esinyathelweni ngasinye.Kuphela ngale ndlela yokucophelela lapho umkhiqizo wokugcina ungathathwa njengofanele injongo.
I-graphite crucible ngayinye ihlolwa ikhwalithi eqinile ngaphambi kokuba yenziwe itholakale kumakhasimende.Izindikimba ezilawulayo zenza ukuhlola okungahleliwe kule mikhiqizo, futhi noma yiziphi izimo zokungathobeli zingaholela ekumisweni kokukhiqiza kanye nezinhlawulo ezinkulu, noma ngisho nokuvalwa kwendawo yokukhiqiza.Izinyathelo eziqinile ziyasebenza ngenxa yokulimala okungaba khona okungabangelwa okuqukethwe okuputshuziwe empilweni yabantu.Ukuvimbela ukuvuza okunjalo kudinga ukulungisa inkinga emsukeni wayo, kuqalwe ngokukhiqizwa kwalezi zinsimbi.
Isikhathi sokuthumela: Aug-28-2023