Intshayelelo
Kwimizi-mveliso yobushushu obuphezulu-ukusuka kwi-steelmaking ukuya kwi-glass production-refractory materials yintsika yemisebenzi ekhuselekileyo neyiyo. Phakathi kwezi,izitena ezininzibavelele ukuzinza kwabo okukhethekileyo kwe-thermal, ukumelana nokubola, kunye namandla omatshini. Ukuqonda ukuhlelwa kwazo kunye nokusetyenziswa kwazo kubalulekile kumashishini afuna ukwandisa ubomi besixhobo kunye nokunciphisa iindleko zokusebenza. Eli nqaku liqhekeza iintlobo eziphambili zezitena ze-mullite kunye nokusetyenziswa kwazo kwehlabathi lokwenyani, kukunceda wenze izigqibo ezinolwazi kwiimfuno zakho zeshishini.
Ukuhlelwa kwezitena zeMullite
Izitena ze-Mullite zihlelwe ngokusekwe kwiinkqubo zokuvelisa kunye nezinto ezongeziweyo, nganye ilungiselelwe iimfuno ezithile zemizi-mveliso.
1. Izitena ze-Sintered Mullite
Yenziwe ngokuxuba i-alumina ephezulu ecocekileyo kunye ne-silica, ukubumba umxube, kunye nokucwiliswa kwiqondo lokushisa ngaphezu kwe-1600 ° C, izitena ze-mullite ze-sintered ziqhayisa isakhiwo esixineneyo kunye ne-porosity ephantsi (ngokuqhelekileyo ingaphantsi kwe-15%). Ezi mpawu zibanika ukuxhathisa ukunxiba okugqwesileyo kunye nokuxhathisa ukothuka kwe-thermal-zilungele iindawo ezihlala ziguquguquka rhoqo. Ukusetyenziswa okuqhelekileyo kubandakanya iilayini zeekheramic kilns, izitovu eziqhumayo zesitovu somlilo, kunye namagumbi okutsha kwibhoyila.
2. Izitena zeMullite ezixutyiweyo
Iveliswe ngokunyibilikisa izinto eziluhlaza (i-alumina, i-silica) kwisithando sombane se-arc (ngaphezu kwe-2000 ° C) kunye nokuphosa umxube otyhidiweyo kwi-molds, izitena ze-mullite ezixubileyo zinezinga eliphezulu lokungahlambuluki kunye nococeko oluphezulu lwe-crystalline. Ukuxhathisa kwabo okugqwesileyo kukhukuliseko lwekhemikhali (umzekelo, kwiglasi enyibilikisiweyo okanye i-slags) kubenza babe lolona khetho luphezulu lokuhlaziya iziko leglasi, iibhafu zeglasi ezidadayo, kunye nezinye izixhobo ezivezwe kumajelo asasazo atyhidiweyo.
3. Izitena zeMullite eziKhala
Idalwe ngokudibanisa i-pore-forming agents (umzekelo, i-sawdust, i-graphite) ngexesha lokuvelisa, izitena ze-mullite ezikhaphukhaphu zine-porosity ye-40-60% kunye noxinzelelo oluphantsi kakhulu kuneentlobo ze-sintered okanye i-fused-cast. Inzuzo yabo ephambili yi-conductivity ephantsi ye-thermal (0.4-1.2 W / (m·K)), eyanciphisa ukulahleka kobushushu. Zisetyenziswa ngokubanzi njengomaleko wokugquma kwii-kilns, kwiziko, nakwizixhobo zokunyanga ubushushu, apho ubunzima kunye nokusebenza kakuhle kwamandla zizinto eziphambili.
4. Izitena zeZircon Mullite
Ngokubandakanya i-zircon (i-ZrSiO₄) kumxube wezinto eziluhlaza, izitena ze-zircon mullite zifumana ukuphuculwa kweqondo lokushisa eliphezulu-zinokumelana nokushisa ukuya kwi-1750 ° C kwaye zixhathise ukukhukuliseka kwi-slags acidic. Oku kubenza bafanelekele iindawo ezirhabaxa ezifana neziko lokunyibilikisa isinyithi esingeyontsimbi (umzekelo, iiseli zokunciphisa i-aluminiyam) kunye neendawo zokutshisa isamente ezijikelezayo.
Ukusetyenziswa kwezitena zeMullite
Ukuguquguquka kwezitena zeMullite kuzenza zibe yimfuneko kumashishini amaninzi obushushu obuphezulu.
1. Ishishini lentsimbi
Imveliso yentsimbi ibandakanya ukushisa okugqithisileyo (ukuya kwi-1800 ° C) kunye ne-slags e-corrosive. Izitena ze-mullite ze-Sintered zidibanisa izitovu ezitshisayo, apho ukuxhathisa ukutshatyalaliswa kwe-thermal kuthintela ukuqhekeka ukusuka ekufudumeni / ukupholisa ngokukhawuleza. Ukwahluka kwe-Fused-cast ikhusela iileyile kunye ne-tundishes, ukunciphisa ukhukuliseko lwe-slag kunye nokwandisa ubomi besixhobo ngama-20-30% xa kuthelekiswa nezinto ezichasayo zemveli.
2. Ushishino lwesamente
Iikhilni zesamente ezijikelezayo zisebenza kwi-1450-1600 ° C, kunye ne-alkaline slags ebeka ingozi enkulu yokhukuliseko. Izitena zeZircon mullite zenza indawo yokutshisa i-kiln, ukuxhathisa ukuhlaselwa kwe-alkali kunye nokugcina ingqibelelo yesakhiwo. Izitena ze-mullite ezikhaphukhaphu zikwasebenza njengomaleko wokugquma, ukusika ukusetyenziswa kwamandla nge-10-15%.
3. Ishishini leglasi
Iglasi etyhidiweyo (1500-1600 ° C) idla ngokugqwesa kakhulu, yenza izitena ze-mullite ezixutyiweyo ziyimfuneko kwiglasi yokuvuselela iziko kunye ne-tank linings. Banqanda ukungcoliseka kweglasi kwaye bandise ixesha lokuqhuba iziko ukuya kwiminyaka emi-5-8, ukusuka kwi-3-5 iminyaka kunye nezinye izinto.
4. Amanye amashishini
Kwi-metal smelting (i-aluminiyam, ubhedu), izitena ze-zircon mullite zixhathisa isinyithi esityhidiweyo kunye nokukhukuliseka kwe-slag. Kwimichiza yepetroli, izitena ze-mullite ze-sintered zidibanisa izitena eziqhekezayo ngenxa yokuzinza kwazo kwe-thermal. Kwi-ceramics, izitena ezikhaphukhaphu ze-mullite zikhusela ii-kilns, zehlisa ukusetyenziswa kwamandla
Ukuqukumbela
Iintlobo ngeentlobo zezitena ze-Mullite-i-sintered, i-fused-cast, i-lightweight, kunye ne-zircon-iyahlangabezana neemfuno ezizodwa zemizi-mveliso yobushushu obuphezulu. Ukusuka ekomelezeni ukusebenza kakuhle kweziko lentsimbi ukuya ekwandiseni ubomi beziko leglasi, bazisa izibonelelo ezibonakalayo: ixesha elide lezixhobo zokusebenza, iindleko ezisezantsi zamandla, kunye nexesha elincitshisiweyo lokuphumla. Njengoko amashishini aqhuba imveliso ephezulu kunye nokuzinza, izitena ze-mullite ziya kuhlala ziyisisombululo esibalulekileyo. Khetha uhlobo olufanelekileyo lwesicelo sakho, kwaye uvule amandla abo apheleleyo.
Ixesha lokuposa: Oct-31-2025
