Kumashishini apho ubushushu obugqithisileyo bungumngeni oqhubekayo, ukukhethwa kwezinto ezichasayo kunokwenza okanye kuphule ukusebenza kakuhle, ukhuseleko, kunye neendleko ezifanelekileyo. Udaka oluphezulu lwe-alumina refractory ibalasele njengemathiriyeli yekona, eyenzelwe ukumelana namaqondo obushushu angapheliyo, ukhukuliseko lwekhemikhali, kunye nokunxitywa koomatshini. Nokuba ukwi-metallurgy, kwi-ceramics, kwimveliso yeglasi, okanye nakweliphi na icandelo elifuna ibhondi ekwazi ukumelana nobushushu, olu daka lukhethekileyo luzisa ukusebenza okungenakuthelekiswa nanto ukuba ezinye iindlela zegeneric azinakufanelana. Makhe siphonononge ukuba kutheni udaka oluphezulu lwe-alumina lulolona khetho luphezulu kwizicelo ezibalulekileyo zobushushu obuphezulu kwihlabathi liphela.
Okokuqala nokuphambili, udaka oluphezulu lwe-alumina refractory luyagqwesa kwi-metallurgical applications, icandelo apho amaqondo obushushu ahlala enyuka ngaphezu kwe-1500°C. Kwimizila yentsimbi, isetyenziswa ngokubanzi ukudibanisa izitena eziphikisayo kwiziko eliqhumayo, iileyile, ii-tundishes, kunye nezixhobo zombane ze-arc. Isiqulatho se-alumina ephezulu (ngokuqhelekileyo i-70% ukuya kwi-90%) inika ukuchaneka okungaqhelekanga, ukuthintela ukunyibilika okanye ukuguquka naphantsi kobushushu obunamandla bentsimbi etyhidiweyo. Ukongeza, iyaxhathisa i-corrosion evela kwi-slag etyhidiweyo, ii-oxide zetsimbi, kunye nezinye izinto ezinobundlobongela eziqhelekileyo kwimveliso yentsimbi. Oku kuqina kunciphisa ixesha lokuphumla elibangelwa ukungaphumeleli kwe-refractory, ukuqinisekisa ukusebenza ngokuqhubekayo kunye nokunciphisa iindleko zokugcina abenzi bentsimbi.
Iiseramics kunye namashishini eglasi nawo axhomekeke kakhulu kudaka oluphezulu lwe-alumina refractory. Izitofu zeCeramic, ezisetyenziselwa ukudubula izinto ezenziwe ngodongwe, iithayile, kunye neeseramikhi eziphambili, zisebenza kumaqondo obushushu aphakathi kwe-1200°C kunye ne-1800°C. Udaka oluphezulu lwe-alumina lubonelela ngebhondi eyomeleleyo, ezinzileyo yobushushu kwiilenki eziphikisayo kwezi zitshixo, zigcina ingqibelelo yesakhiwo nangexesha lokufudumeza okuphindaphindiweyo kunye nokupholisa imijikelo. Kwiziko zokunyibilika kweglasi, apho amaqondo obushushu angaphezulu kwe-1600 ° C, ukuxhathisa udaka kwi-thermal shock kubalulekile. Ikhusela iintanda kunye nokuqhekeka okubangelwa kukutshintsha kobushushu obukhawulezayo, ukwandisa ixesha lokuphila kwezibane zesithando somlilo kunye nokuqinisekisa umgangatho weglasi ongaguqukiyo. Ngokungafaniyo nodaka lwe-alumina ephantsi, ayisebenzi ngokunyibilika kweglasi, ukuthintela ungcoliseko olunokonakalisa iibhetshi zeemveliso zeglasi.
Esinye isicelo esiphambili silele kwizityalo zepetrochemical kunye ne-thermal power. Kwiibhoyila, izitshisi, kunye nohlaziyo, i-alumina ephezulu ye-refractory mortar bond refractory components ezijongene namaqondo obushushu aphezulu, iigesi ze-flue, kunye nokuhlaselwa kweekhemikhali ezivela kumafutha kunye neemveliso. Kwizityalo zamandla ezitshiswa ngamalahle, zimelana nendalo erhabaxa yothuthu lwempukane kunye neziphumo ezibi zesulfure oxides. Kwi-petrochemical crackers kunye nabaguquleli, ixhathisa ukuthotywa kwe-hydrocarbons kunye ne-high-temperature steam, iqinisekisa ukuveliswa kwamandla okukhuselekileyo nokusebenzayo. Iimpawu zayo zokubambelela ezigqwesileyo nazo zenza kube yinto efanelekileyo yokulungisa iilenki ezichasayo ezonakalisiweyo, ukunciphisa ixesha lokunciphisa kunye nokwandisa ubomi benkonzo yezixhobo ezibalulekileyo.
Ngaphaya kwale mizi mveliso ingundoqo, udaka oluphezulu lwe-alumina refractory lufumana ukusetyenziswa kwizityalo zokutshisa inkunkuma, apho lulawula amaqondo obushushu aphezulu kunye neegesi ezitshabalalisayo eziveliswa ngokutshisa inkunkuma kamasipala neyemizi-mveliso. Kukwabalulekile kwiziseko zokwenziwa kwe-lining molds kunye neecrucibles ezisetyenziselwa ukuphosa isinyithi. Ukuguquguquka kwayo, kunye nokuchasana nokushisa okuphezulu kunye nokuqina, kwenza kube sisisombululo sendalo yonke nasiphi na isicelo esifuna ukudibanisa okuthembekileyo kwiindawo ezishushu kakhulu.
Xa ukhetha udaka oluphezulu lwe-alumina refractory, kubalulekile ukukhetha imveliso ekumgangatho ophezulu ehlangabezana nemigangatho yoshishino. Jonga udaka olunokuhanjiswa kobungakanani besuntswana elingaguqukiyo, ukuncamathela okuqinileyo, kunye nokuxhathisa ukothuka kwe-thermal. Udaka lwethu oluphezulu lwe-alumina refractory lwenziwa kusetyenziswa imathiriyeli ekrwada yeprimiyamu kunye neendlela eziphucukileyo zokusetyenzwa, ukuqinisekisa ukuba kuzisa ukusebenza okubalaseleyo kwezona zicelo zifunwa kakhulu. Nokuba ufuna ukudibanisa iziko elikhulu lentsimbi, ukulungisa i-kiln ye-ceramic, okanye ugcine ibhoyila yeplanti yamandla, udaka lwethu lubonelela ngokuthembeka kunye nobomi obude obufunekayo ukuze ugcine imisebenzi yakho iqhuba kakuhle.
Musa ukuyekelela ekusebenzeni xa kuziwa kwizicelo zobushushu obuphezulu. Khetha udaka oluphezulu lwe-alumina refractory ukuxhathisa ubushushu obuphezulu, ukuxhathisa umhlwa, kunye nokuqina. Qhagamshelana nathi namhlanje ukuze ufunde ngakumbi malunga neemveliso zethu kunye nendlela ezinokuphucula ukusebenza kwakho kakuhle kunye nokunciphisa iindleko zokuzigcina.
Ixesha lokuposa: Dec-03-2025
