Itekhnoloji yokwenziwa kweecrucible zegraphite zokunyibilikisa ubhedu iqhuba utshintsho. Le nkqubo isebenzisa eyona ndlela iphambili yehlabathi ebandayo ye-isostatic yokucinezela kwaye yenziwa phantsi koxinzelelo oluphezulu lwe-600MPa ukuqinisekisa ukuba ulwakhiwo lwangaphakathi lwe-crucible lufana kwaye alunasiphako kwaye lunamandla aphezulu kakhulu. Olu lutsha aluphuculi nje kuphela ukusebenza kwe-crucible, kodwa luphinda luqhube phambili ekugcinweni kwamandla kunye nokukhuselwa kwendalo.
Izinto ezilungileyo zokucinezela isostatic ebandayo
Ulwakhiwo lwangaphakathi lufana kwaye alunasiphako
Ngaphantsi kwe-high-pressure molding, isakhiwo sangaphakathi se-copper-graphite crucible sifana ngokugqithisileyo ngaphandle kwaziphi na iziphene. Oku kuhluke kakhulu kwiindlela zokusika zendabuko. Ngenxa yoxinzelelo oluphantsi, iindlela zemveli zikhokelela ngokungaphephekiyo kwiziphene zesakhiwo zangaphakathi ezichaphazela amandla ayo kunye ne-thermal conductivity.
Amandla aphezulu, udonga oluncinci lwe-crucible
Indlela yokucinezela i-isostatic ebandayo iphucula kakhulu amandla e-crucible phantsi koxinzelelo oluphezulu. Amandla amakhulu avumela iindonga ze-crucible ukuba zenziwe zibe zincinci, ngaloo ndlela zikhulise ukuhanjiswa kwe-thermal kunye nokunciphisa ukusetyenziswa kwamandla. Xa kuthelekiswa nezikhonkwane zendabuko, olu hlobo olutsha lwe-crucible lufanelekile ngakumbi kwimveliso esebenzayo kunye neemfuno zokugcina amandla.
Ukuqhuba kakuhle kwe-thermal kunye nokusetyenziswa kwamandla aphantsi
Amandla aphezulu kunye nesakhiwo esincinci esincinci se-crucible copper graphite crucibles kubangela ukuba kube ngcono kakhulu ukuhanjiswa kwe-thermal xa kuthelekiswa neecrucibles eziqhelekileyo. Ukuphucula i-thermal conductivity kuthetha ukuba ukushisa kunokudluliselwa ngokulinganayo kwaye ngokukhawuleza ngexesha lenkqubo yokunyibilikisa i-aluminium alloys, i-zinc alloys, njl., ngaloo ndlela ukunciphisa ukusetyenziswa kwamandla kunye nokuphucula ukusebenza kakuhle kwemveliso.
Ukuthelekisa kunye neendlela zokuvelisa zemveli
Ukulinganiselwa kweendlela zokusika
Uninzi lweekhreyibhile zegraphite eziveliswa kweli lizwe zenziwe ngokusikwa emva koko zisike. Le ndlela ibangela ukungalingani, ukukhubazeka, kunye nezakhiwo zangaphakathi eziphantsi ngenxa yoxinzelelo oluphantsi. Ukongezelela, ine-conductivity ephantsi ye-thermal kunye nokusetyenziswa kwamandla aphezulu, okwenza kube nzima ukuhlangabezana neemfuno zeshishini lanamhlanje ekusebenzeni okuphezulu kunye nokugcinwa kwamandla.
Ukungalungi kwabalinganisi
Abanye abavelisi baxelisa indlela ebandayo ye-isostatic yokucinezela ukuvelisa izibonda, kodwa ngenxa yokungonelanga koxinzelelo lokuvelisa, uninzi lwabo luvelisa ii-silicon carbide crucibles. Ezi crucibles zineendonga ezityebileyo, ukungahambi kakuhle kwe-thermal, kunye nokusetyenziswa kwamandla aphezulu, ezikude neyona nto ityhidiweyo ye-graphite crucibles ye-copper crucibles eveliswa ngokucinezela kwe-isostatic ebandayo.
Imigaqo yobugcisa kunye nezicelo
Kwinkqubo yokunyibilikisa i-aluminium kunye ne-zinc alloys, ukuxhathisa i-oxidation kunye ne-thermal conductivity ye-crucible zizinto ezibalulekileyo. IiCrucibles ezenziwe kusetyenziswa indlela ebandayo ye-isostatic yokucinezela ibeka ugxininiso olukhethekileyo kuxhathiso lwe-oxidation ngelixa unqanda iziphumo ezibi ze-fluoride-eziqulathe i-fluoride. Ezi zixhobo zigcina ukusebenza kakuhle kwiqondo lokushisa eliphezulu ngaphandle kokungcolisa isinyithi, ukuphucula kakhulu ukuqina.
Ukusetyenziswa kwi-aluminium alloy smelting
I-Graphite crucible idlala indima ebalulekileyo ekunyibilikeni kwe-alloys ye-aluminiyam, ngakumbi kwimveliso ye-die castings kunye ne-castings. Iqondo lobushushu lokunyibilika kwe-alloyi ye-aluminiyam buphakathi kwe-700°C kunye ne-750°C, ekwaluluhlu lobushushu apho igraphite ifakwa ioksijini ngokulula. Ke ngoko, iicrucibles zegraphite eziveliswe ngokucinezela kwe-isostatic ezibandayo zibeka ugxininiso olukhethekileyo kukumelana ne-oxidation ukuqinisekisa ukusebenza okugqwesileyo kumaqondo obushushu aphezulu.
Yenzelwe iindlela ezahlukeneyo zokunyibilika
I-graphite crucible ifanelekile kwiindlela ezahlukeneyo zokunyibilikisa, kubandakanywa ukunyibilika kwesithando somlilo esinye kunye ne-smelting edibeneyo nokugcinwa kobushushu. I-aluminium alloy castings, i-design crucible idinga ukuhlangabezana neemfuno zokuthintela ukuxutywa kwe-H2 kunye nokuxuba i-oxide, ngoko ke i-crucible standard okanye i-crucible-shaped-shaped crucible isetyenziswa. Kwiiziko zokunyibilikisa ezisembindini, iziko lokunyibilikisa elithambileyo lidla ngokusetyenziselwa ukusetyenzwa ngokutsha kwenkunkuma enyibilikayo.
Ukuthelekiswa kweempawu zokusebenza
Uxinaniso oluphezulu kunye ne-thermal conductivity
Ubuninzi beecrucibles zegraphite ezenziwe ngokucinezela kwe-isostatic kubanda kuphakathi kwe-2.2 kunye ne-2.3, eyona nto iphezulu yoxinaniso phakathi kwee-crucibles emhlabeni. Oku kuxinana okuphezulu kunika i-crucible optimal conductivity ye-thermal, engcono kakhulu kunezinye iibrand ze-crucibles.
I-glaze kunye nokumelana nokubola
Umphezulu we-aluminium etyhidiweyo ye-graphite crucible igutyungelwe ngamacandelo amane e-glaze ekhethekileyo yokwaleka, edityaniswa nezinto ezibunjiweyo ezixineneyo, iphucula kakhulu ukuxhathisa kwe-corrosion ye-crucible kwaye yandisa ubomi bayo benkonzo. Ngokwahlukileyo, ii-crucibles zasekhaya zinoluhlu kuphela lwesamente eyomeleziweyo phezu komhlaba, eyonakaliswe lula kwaye ibangele i-oxidation yangaphambi kwexesha le-crucible.
Ukuqulunqwa kunye ne-thermal conductivity
I-crucible ye-graphite yobhedu etyhidiweyo isebenzisa i-graphite yendalo, ene-conductivity egqwesileyo ye-thermal. Ngokwahlukileyo, ii-crucibles ze-graphite zasekhaya zisebenzisa i-graphite yokwenziwa, ukunciphisa umxholo we-graphite ukunciphisa iindleko, kunye nokongeza inani elikhulu lodongwe lokubumba, ngoko ukuqhutyelwa kwe-thermal kuyancipha kakhulu.
Iindawo zokupakisha kunye nezicelo
Ukupakisha
I-crucible ye-graphite yobhedu etyhidiweyo idla ngokudityaniswa kwaye ifakwe ngentambo ye-straw, leyo yindlela elula nesebenzayo.
Ukwandiswa kwemimandla yesicelo
Ngokuqhubela phambili okuqhubekayo kwetheknoloji, imimandla yesicelo se-graphite crucibles iyaqhubeka nokwandisa. Ngokukodwa kwimveliso ye-aluminium alloy die castings kunye ne-castings, i-graphite crucibles ngokuthe ngcembe ithatha indawo yeembiza zentsimbi zentsimbi ukuze zihlangabezane neemfuno zemveliso yeendawo eziphezulu zemoto.
ukuququmbela
Ukusetyenziswa kwendlela yokucinezela ye-isostatic ebandayo kuzise ukusebenza kunye nokusebenza kakuhle kwe-copper-graphite crucible smelting ukuya kwinqanaba elitsha. Ingaba kufana nokufana, amandla okanye i-thermal conductivity yesakhiwo sangaphakathi, ingcono kakhulu kuneendlela zokuvelisa zendabuko. Ngokusetyenziswa ngokubanzi kobu buchwephesha obuhambele phambili, imfuno yentengiso ye-graphite crucibles iya kuqhubeka ikhula, iqhubela ishishini liphela kwikamva elisebenzayo nelinobungangamsha kokusingqongileyo.
Ixesha lokuposa: Jun-05-2024