Ekuphishekeleni ukukhulisa isikhathi sokuphila nokusebenzisa izici zeama-graphite ama-brucIbles, ifektri yethu yenze ucwaningo olunzulu nokuhlola ukukhiqizwa kwalo nasekusebenzeni kwalo. Nansi imiyalo yokusebenza ye-Graphite Crucibles:
Izindlela ezikhethekile zokuqapha ze-graphite graphity crucibles ephezulu:
Gwema imithelela emishini futhi ungayeki noma ushaye i-ebethelwe ekuphakameni. Futhi uyigcine yomile futhi ikhiphe umswakama wefomu. Ungathinti amanzi ngemuva kokuthi ishiswe futhi yomile.
Lapho usebenzisa, gwema ukuqondisa i-flame ngqo ephansi. Ukuchayeka ngqo ilangabi kungashiya amamaki asemqoka aphambili.
Ngemuva kokuvala isithando somlilo, susa noma iyiphi into esele ye-aluminium noma yethusi kusuka ekubethelweni futhi uvikele ukushiya izinsalela.
Sebenzisa izinto ze-acidic (ezinjenge-flux) ngokulinganisela ukuvikela ukulungiswa nokuqhekeka kokunye.
Lapho ungeza izinto zokwakha, gwema ukushaya i-ebekiwe futhi wenqabe ukusebenzisa amandla emishini.
Ukugcinwa nokudluliselwa kwe-Graphite Crucibles:
Ama-graphite ama-graphite aphezulu aphezulu azwela amanzi, ngakho-ke kufanele avikelwe ekudambeni nasekuchayweni kwamanzi.
Naka ukugwema ukulimala komhlaba. Musa ukubeka ngqo phansi phansi; Esikhundleni salokho, sebenzisa i-pallet noma ibhodi lesitaki.
Lapho uhambisa ebethelwe, gwema ukuyigoqa eceleni kwayo phansi. Uma idinga ukujikelezwa ngokuqondile, beka amakhadibhodi aminyene noma indwangu phansi ukuvikela imihuzuko noma ukugqama phansi.
Ngesikhathi sokudlulisa, qhubeka unakekele ukuthi ungayeki noma ushaye ukucacisa.
Ukufakwa kwe-graphite crucibles:
Ukuma okusebenzayo (ipulatifomu ebekiwe) kufanele kube nobubanzi obufanayo noma obukhulu njengezansi ezinothile. Ukuphakama kwepulatifomu kufanele kube ngaphezulu kwe-flame nozzle ukuvikela ilangabi ekufinyeleleni ngqo ngqo.
Uma usebenzisa izitini ezivela kwipulatifomu, kukhethwa izitini eziyindilinga, futhi kufanele zibe yisicaba ngaphandle kokugoba. Gwema ukusebenzisa isigamu noma izitini ezingalingani, futhi kunconywa ukusebenzisa amapulatifomu we-graphite angenisiwe.
Beka ukuma okusebenzayo enkabeni yokuncibilika noma ukuncibilikisa, futhi usebenzise i-carbon powder, noma i-husk hesk ash, noma ukotini okuzenzakalelayo njenge-cushion ukuvimba ukunamathela. Ngemuva kokubeka okubaleka, qiniseka ukuthi kudalwe (kusetshenziswa izinga lomzimba).
Khetha ama-rucibles afanele ahambelana nesithando somlilo, bese ugcina igebe elifanele (okungenani (40mm) phakathi kodonga olunombala olulandelayo nolusizi.
Lapho usebenzisa i-eBRICICY nge-spout, shiya isikhala esingama-30-50mm phakathi kwesipuni kanye nesitini esisebenzayo ngezansi. Musa ukubeka noma yini ngaphansi, futhi usebenzise ukotini lokuya kabusha ukuze ubushelelezi ukuxhumana phakathi kwesikhala nodonga lomlilo. Udonga lomlilo kufanele lube nezitini ezibukhali (amaphuzu amathathu), nekhadibhodi ehlanganisiwe elingamakhadi acishe abe ngu-3mm kufanele kubekwe ngaphansi kokunye ukuvumela ukuvumela ukwelula okushisayo ngemuva kokushisa.
Ukuhamba phambili nokomiswa kwe-graphite tucibles:
Preheat the ebethelwe eduze kwesithako samafutha amahora 4-5 ngaphambi kokusebenzisa ukusiza ekususeni komswakama kusuka ebusweni obusebandleni.
Okwe-New Crucibles, beka amalahle noma izinkuni ngaphakathi kwe-Earcidible futhi uyishise cishe amahora amane ukusiza ukususa umswakama.
Izikhathi zokushisa ezinconyiwe zokuhlukumezeka okusha zinjengokulandelayo:
0 ℃ kuya ku-200 ℃: Kancane kancane khulisa amazinga okushisa ngaphezu kwama-4 amahora.
Kumafutha e-Amafutha: Khulisa izinga lokushisa kancane ngehora eli-1, kusuka ku-0 ℃ kuya ku-300 ℃, futhi udinga ama-4hours kusuka ku-1200 ℃ kuya ku-300 ℃ kuya ku-300 ℃ kuya ku-300 ℃,
For electric furnaces: need 4 hours heating time from 300℃ to 800℃, then 4 hours from 300℃ to 400℃. Kusuka ku-400 ℃ kuya ku-600 ℃, kwandise izinga lokushisa ngokushesha futhi ugcine amahora amabili.
Ngemuva kokuvala isithando somlilo, izikhathi zokuvuselela kabusha ezinconyiwe zimi ngalendlela elandelayo:
Kumafutha namafutha kagesi: dinga isikhathi esingu-1 sokushisa kusuka ku-0 ℃ kuya ku-300 ℃. Dinga isikhathi sokushisa amahora ama-4 kusuka ku-300 ℃ kuya ku-600 ℃. Khulisa ngokushesha izinga lokushisa lifinyelele ezingeni elifunekayo.
Izinto zokushaja:
Lapho usebenzisa ama-graphible ama-graphite aphezulu aphezulu, qala ngokungeza izinto ezincane zamakhoneni ngaphambi kokungeza izingcezu ezinkulu. Sebenzisa izithandani ukuze ubeke izinto zokwakha buthule zibe khona. Gwema ukulayisha ngokweqile okunembathelweni ukuze uyivimbele ekuqhekekeni.
Kumafutha kawoyela, izinto zokwakha zingangezwa ngemuva kokufinyelela kuma-300 ℃.
Okwezithakazi zikagesi:
Kusuka ku-200 ℃ kuya ku-300 ℃, qala ukwengeza izinto ezincane. Kusuka ku-400 ℃ kuya phambili, kancane kancane engeza izinto ezinkulu. Lapho ungeza izinto zokwakha ngesikhathi sokukhiqizwa okuqhubekayo, gwema ukuzingeza esikhundleni sokuvimbela i-oxidation emlonyeni obekiwe.
Okokufaka okufakwayo kukagesi, preheat kuye ku-500 ℃ ngaphambi kokuthulula i-aluminium.
Izinyathelo zokuphepha ngesikhathi sokusebenzisa ama-graphite rucibles:
Phatha izinto zokwakha uma uzingeza entweni enokwethenjelwa, ukugwema ukubekwa okunamandla ukuvikela ukonakala.
Okwe-Crucibles kusebenza ngokuqhubekayo amahora angama-24, isikhathi sabo sokuphila singanwetshwa. Ekupheleni kosuku lomsebenzi kanye nokuvalwa kothando, izinto ezincibilikisiwe encazelweni kufanele zisuswe ukuvikela ukuqina nokunwebeka okulandelayo, okungaholela ekuguqukeni noma ekuqhekekeni okusebenzayo.
Lapho usebenzisa ama-ejenti ancibilikayo (njenge-fllux ye-aluminium alloys noma i-borax yama-alloys ethusi), uwasebenzise ngokucophelela ukugwema ukufeza izindonga ezisebenzayo. Faka ama-ejenti lapho i-aluminium incibilika ingacishe ibe imizuzu eyi-8 ukusuka ekugcwalisweni okugcwele, kuvuse ngobumnene ukuze ivimbele ekulandeleni ezindongeni ezisebenzayo.
QAPHELA: Uma i-ejenti yokuncibilika iqukethe okuqukethwe okungaphezu kwe-10% sodium (NA), okwenziwe ngokucacile okwenziwe ngezinto ezithile ezikhethekile.
Ekupheleni kosuku ngalunye lomsebenzi, ngenkathi okubethelwa kusashisa, susa ngokushesha noma yikuphi ukunamathela kwensimbi ezindongeni ezisebenzayo ukuvikela izinsalela ngokweqile, ezingakuthinta isikhathi sokuchithwa komhlaba, okubangela ukunwebeka okusebenzayo kanye nokuqhekeka okusebenzayo.
Kunconywa ukubheka isimo esisembatheke cishe njalo ezinyangeni ezimbili ze-aluminium alloys (masonto onke ngama-aloys ethuni). Hlola indawo yangaphandle futhi uhlanze igumbi lomlilo. Ngokwengeziwe, shintshaniswa okubaleka ukuqinisekisa ngisho nokugqoka, okusiza ukwelula isikhathi sokuphila kwe-graphines evuselelekile.
Ngokulandela le miyalo yokusebenza, abasebenzisi bangakhulisa isikhathi sokuphila kanye nokusebenza kahle kwama-graphite abo, baqinisekise ukusebenza okuhle kwezicelo ezahlukahlukene.
Isikhathi sePosi: Jul-10-2023