Kwiminyaka yakutshanje, iteknoloji yemveliso yasekhayaiicrucibles zegraphitewenze inkqubela ebonakalayo.Abaphelelanga nje ekufumaneni imibhobho evela kumazwe angaphandle, kodwa kwezinye iimeko bade bayigqithise.Ngokusebenzisa ubuchule obutsha bokuvelisa kunye nokukhangela izixhobo ezikumgangatho ophezulu, iicrucibles zegraphite ngoku zinokumelana neemeko ezigqithisileyo ngokusebenza okungenakulinganiswa.
Iimpawu eziphambili zezi crucibles ezintsha zegraphite akungabazeki ukuba zibalulekile.Okokuqala, bane-conductivity ephezulu ye-thermal, ukunciphisa kakhulu ixesha lokunyibilika, ngenxa yokusetyenziswa kwezinto eziluhlaza ezifana negraphite, ene-thermal conductivity egqwesileyo.Oku kunyuka kokusebenza kakuhle akugcini nje ixesha namandla, kodwa kwandisa imveliso kuwo wonke amashishini.
Ukongeza, ezi crucibles zikwazi ukumelana nobushushu kwaye ziyakwazi ukumelana namaqondo obushushu ukuya kwi-1200 ukuya kwi-1600 ° C.Lo mgangatho ukhethekileyo wenza ukuba ilungele izicelo ezifuna amaqondo obushushu aphezulu, ezinje ngesinyithi kunye neziseko.Ikhono lokumelana namaqondo okushisa anjalo ngaphandle kokunciphisa ukusebenza ngumdlalo-wokutshintsha iinkqubo ezininzi zoshishino.
Enye yezona zinto ziphawulekayo zezi crucibles zegraphite kukuxhathisa kwazo okugqwesileyo kwe-corrosion.Babonisa ukuxhathisa okukhulu naxa bejongene nezixhobo ezinyibilikisiweyo ezinokonakala kakhulu, ziqinisekisa ubomi obude kunye nokusebenza okuphuculweyo.Olu xhathiso lwe-corrosion lwandisa uluhlu lwezicelo zezi zixhobo, ngakumbi kumashishini ekhemikhali kunye ne-metallurgical.
Ukongeza, ukuxhathisa ukothuka kwe-thermal kuyenza ibe phezulu kwiimveliso ezifanayo.I-graphite crucibles ibonisa u-elasticity phantsi kokupholisa ngokukhawuleza kunye nemijikelo yokufudumeza, okwenza ukuba kungabi lula ukuqhekeka kunye nokuqhekeka.Oku kuhlala kugqwesileyo akuphuculi nje kuphela ukhuseleko kodwa kukwabonelela ngeendleko ezibalulekileyo ngokunciphisa imfuno yokutshintshwa rhoqo.
I-Graphite crucibles isetyenziswa ngokubanzi kumashishini ahlukeneyo ngenxa ye-conductivity ephezulu ye-thermal kunye nokumelana nokushisa okuphezulu.Ezi crucibles zine-coefficient ephantsi yokwandiswa kwe-thermal kwaye zichasene nokutshintsha ngokukhawuleza kwiqondo lokushisa.Banokumelana nokufudumeza ngokukhawuleza kunye nokupholisa ngaphandle kokubandezeleka okukhulu, ukuqinisekisa ukusebenza kakuhle kunye nokuthembeka.
Iicrucibles zegraphite zingumzekelo wokuxhathisa i-corrosion kwizisombululo ze-acidic kunye ne-alkaline, ezenza zibaluleke kakhulu kwiilebhu nakwizityalo zokwenza imichiza.Ukuzinza kwabo okugqwesileyo kwiimpendulo zeekhemikhali kubonisa ukuqina kwazo kwaye kunokuphatha ngokukhuselekileyo uluhlu olubanzi lweekhemikhali.
Ukubunjwa kwe-graphite crucible yi-natural flake graphite njengeyona nto iphambili.Ibanjwa kunye kusetyenziswa i-adhesive ekhethekileyo ebizwa ngokuba yi-plastic fire charcoal.Le nhlanganisela ekhethekileyo iqinisekisa ukuba ii-graphite crucibles zigcina ingqibelelo yesakhiwo phantsi kweemeko ezinzima, zibonelela ngeziphumo ezihambelanayo kwiinkqubo ezahlukeneyo.
Ukufika kweecrucible zegraphite eziveliswe ekhaya akubonisi nje impumelelo yezobuchwepheshe, kodwa kukwaxhasa uphuhliso lwamashishini asekhaya.Iicrucibles eziveliswa ekuhlaleni, ezikumgangatho ophezulu zinciphisa ukuthembela kwizinto ezithunyelwa ngaphandle ngelixa zibonelela ngamaxabiso akhuphisanayo kuluhlu lwamashishini.Olu phuhliso luvula indlela yokuzimela ngakumbi kwaye lomeleza ushishino lwelizwe.
Isishwankathelo, ukuveliswa kwezinto ezintsha kwimveliso ye-graphite crucible kuye kwayiqhubela phezulu, idlula iimveliso ezifanayo ezivela kumazwe angaphandle ngokusebenza kunye nokuqina.I-conductivity egqwesileyo ye-thermal, ukumelana nobushushu obugqwesileyo, ukuxhathisa ukubola kunye nokuxhathisa ukothuka kwe-thermal kwenza kube luncedo kwiintlobo ezahlukeneyo zezicelo zoshishino.Ngale nkqubela phambili, ishishini lasekhaya le-graphite crucible lenze igalelo elibalulekileyo kuhlumo lwemizi-mveliso yelizwe kunye nokuzimela.
Ixesha lokuposa: Oct-08-2023