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 lwee-crucibles ze-graphite eziveliswa ekhaya zenziwe ngokusikwa kwaye emva koko sintering. 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
Ubuninzi obuphezulu 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 optimivity conductivity, ngcono 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