Intshayelelo
Kwishishini le-metallurgical, ukusetyenziswa kwezinto ezisemgangathweni kubaluleke kakhulu ukuze kuqinisekiswe ukuveliswa okusebenzayo nokuthembekileyo kwesinyithi kunye ne-alloys. Phakathi kwezixhobo ezahlukeneyo ezisetyenzisiweyo, ii-graphite crucibles ziye zafumana ukuthandwa okuphawulekayo ngenxa yeempawu zazo zokumelana nokubola. Eli nqaku liphonononga iimpawu zokuxhathisa ukubola kweiicrucibles zegraphitekunye nendima yabo eyimfuneko kwiinkqubo ze-metallurgical.
Ukunyangwa koMhlwa kweIiCrucibles zeGraphite
I-graphite, ifom yekhabhoni, ibonisa ukuchasana okuphawulekayo ekuhlaselweni kweekhemikhali kunye namaqondo okushisa aphezulu, okwenza kube yinto efanelekileyo yezinto eziphathekayo kwi-metallurgical industry. Ukuxhatshazwa kwe-corrosion ye-graphite crucibles kubangelwa iimpawu ezizodwa zegraphite ngokwayo. Igraphite inendalo engasebenziyo, nto leyo iyithintelayo ekubeni isabele kuninzi lweeasidi, iialkali, kunye nezinye izinto eziyingozi ezidibana nazo ngexesha lokunyibilika kwesinyithi kunye nokuveliswa kwealloyi.
▪ Ukumelana neAcidi:
Iintsimbi zegraphitebonisa ukuxhathisa okugqwesileyo kwiindawo ezineasidi. Bayakwazi ukumelana nemiphumo eyingozi ye-asidi efana ne-sulfuric acid, i-hydrochloric acid, kunye ne-nitric acid. Lo mgangatho ubalulekile kwiinkqubo ezibandakanya ukuphatha iiasidi, ezifana nokuveliswa kweentsimbi ezithile kunye neeoksidi zetsimbi.
▪ Ukumelana neAlkali:
Ukongeza kwi-acids,iicrucibles zegraphitebonisa ukuxhathisa kwi-alkalis. Izinto zealkaline, ezifana nesodium hydroxide kunye nepotassium hydroxide, ziqhele ukusetyenziswa kwiinkqubo ezahlukeneyo zesinyithi.Iintsimbi zegraphitehlala ungachaphazeleki ngala ma-alkali, uqinisekisa ukuthembeka kunye nobude be-crucible ngexesha leenkqubo ezinjalo.
▪ Ukumelana ne-Oxidation:
Igraphite inokumelana ne-oxidation ebalaseleyo, nokuba kubushushu obuphezulu. Xa iphantsi kobushushu obugqithisileyo, igraphite yenza umaleko okhuselayo wegraphite oxide kumphezulu wayo, osebenza njengomqobo ochasene neoxidation eyongezelelekileyo. Lo mhlaba uluncedo kakhulu kwizicelo apho iziphambuka zisesichengeni se-oxidizing atmosphere, njengokunyibilikiswa nokusulungekiswa kwesinyithi.
Ukunyangwa kweThermal Shock: Enye inkalo ebalulekileyo yeiicrucibles zegraphitekukuxhathisa kwabo ukothuka kwe-thermal. I-graphite ine-conductivity ephezulu ye-thermal kunye ne-coefficient ephantsi yokwandiswa kwe-thermal, eyenza ukuba ikwazi ukumelana nokutshintsha kweqondo lokushisa ngokukhawuleza ngaphandle kokuqhekeka okanye ukuphuka. Oku kuxhathisa ukothuka kwe-thermal kubalulekile kwiinkqubo ezibandakanya ukufudumeza okuphindaphindiweyo kunye nemijikelo yokupholisa, njengokuphosa isinyithi kunye nokuveliswa kwe-alloy.
Izinto eziluncedo zeGraphite Crucibles
Iipropathi zokuxhathisa ukubola kwe-graphite crucibles zibonelela ngeenzuzo ezininzi kwishishini lesinyithi:
▪ Ubomi Obude:
I-Graphite crucibles inobomi obude xa kuthelekiswa ne-crucibles yendabuko eyenziwe ngezinto ezifana nodongwe okanye i-ceramic ngenxa yokumelana kwabo okuphezulu kwi-corrosion kunye ne-thermal shock.
▪ Ukuphuculwa koMgangatho weMveliso:
Ubume obungaguqukiyo be-graphite crucibles buqinisekisa ukuba isinyithi esinyibilikisiweyo okanye i-alloy ihlala ingahlambulukanga, ekhokelela kwiimveliso eziphezulu eziphezulu.
▪ Ukusebenza kakuhle kwamandla:
Iicrucibles zegraphite zine-conductivity efanelekileyo ye-thermal, eyenza ukuhanjiswa kobushushu okusebenzayo, ukuhanjiswa kobushushu obufanayo, kunye nokunciphisa ukusetyenziswa kwamandla ngexesha lenkqubo yokunyibilika.
Iindleko-Ukusebenza: Nangona ekuqaleni zibiza kakhulu kunezinye izinto ezinqamlekileyo, i-graphite crucibles 'ubomi obude kunye nokusebenza okuphezulu kubenza ukuba bakhethe iindleko ezisebenzayo ekuhambeni kwexesha.
Ukuqukumbela
Iicrucibles zegraphite zidlala indima ebalulekileyo kwishishini lesinyithi, libonelela ngeempawu ezikhethekileyo zokuxhathisa ukubola, ukuxhathisa ukothuka kwe-thermal, kunye nokumelana ne-oxidation. Ukukwazi kwabo ukumelana neemeko ezinzima ezidibana nazo ngexesha lokunyibilika kwesinyithi kunye nokuveliswa kwe-alloy kubenza babaluleke kakhulu kwiinkqubo ezahlukeneyo ze-metallurgical. Ngokukhetha i-graphite crucibles, abavelisi banokuqinisekisa umgangatho wemveliso ophuculweyo, ubomi obude be-crucible, ukusebenza kakuhle kwamandla, kunye nokusebenza kakuhle kweendleko. Njengoko i-metallurgical industry iqhubela phambili, i-graphite crucibles iya kuhlala iyinto ethembekileyo kwaye ibalulekileyo ekufuneni ukuveliswa kwesinyithi ngokufanelekileyo kunye nomgangatho ophezulu.
Ixesha lokuposa: Apr-02-2024