Kwimizi-mveliso apho ubushushu obugqithisileyo bungumceli mngeni oqhubekayo, ukukhetha izinto ezichasene nobushushu kunokwenza okanye kuphazamise ukusebenza kakuhle, ukhuseleko, kunye nokusebenza kakuhle kweendleko. Udaka oluphezulu lwe-alumina oluyi-refractory Ibonakala njengesixhobo selitye lembombo, esiyilelwe ukumelana nobushushu obuphezulu obungapheliyo, ukukhukuliseka kweekhemikhali, kunye nokonakala koomatshini. Nokuba ukwishishini lesinyithi, elenziwe ngodongwe, elenziwe ngeglasi, okanye naliphi na icandelo elifuna ukubophelela okunganyangekiyo kubushushu, olu daka lukhethekileyo lubonelela ngokusebenza okungenakuthelekiswa nezinye iindlela eziqhelekileyo. Makhe sihlolisise ukuba kutheni idaka elinokumelana ne-alumina ephezulu yeyona ndlela iphambili yokusetyenziswa kobushushu obuphezulu kwihlabathi liphela.
Okokuqala nokubalulekileyo, i-alumina refractory mortar ephezulu igqwesile kwizicelo ze-metallurgical, icandelo apho amaqondo obushushu adla ngokunyuka ngaphezu kwe-1500°C. Kwi-steel mills, isetyenziswa kakhulu ekudibaniseni izitena refractory kwi-blast ovens, ii-ladles, ii-tundishes, kunye nee-electric arc ovens. Umxholo ophezulu we-alumina (ngesiqhelo yi-70% ukuya kwi-90%) uyinika i-refractoribility ekhethekileyo, ithintela ukunyibilika okanye ukuguqulwa nokuba phantsi kobushushu obukhulu bentsimbi enyibilikisiweyo. Ukongeza, iyamelana nokugqwala okuvela kwi-slag enyibilikisiweyo, ii-metal oxides, kunye nezinye izinto ezirhabaxa eziqhelekileyo kwimveliso yentsimbi. Oku kuhlala ixesha elide kunciphisa ixesha lokungasebenzi elibangelwa kukusilela kwe-refractory, ukuqinisekisa ukusebenza okuqhubekayo kunye nokunciphisa iindleko zokugcinwa kwabavelisi bentsimbi.
Amashishini e-ceramics kunye ne-glass axhomekeke kakhulu kwi-alumina refractory mortar ephezulu. Ii-ceramics, ezisetyenziselwa ukutshisa iimbiza, iithayile, kunye nee-ceramics eziphambili, zisebenza kumaqondo obushushu aphakathi kwe-1200°C kunye ne-1800°C. I-alumina mortar ephezulu inika i-bond eqinileyo, ezinzileyo kubushushu kwii-refractory linings kwezi-kilns, igcina ulwakhiwo oluqinileyo nangona kumaxesha okufudumeza nokuphola ngokuphindaphindiweyo. Kwii-glass melting furnaces, apho amaqondo obushushu adlula i-1600°C, ukumelana kwe-mortar kwi-thermal shock kubalulekile. Ithintela ukuqhekeka kunye nokuqhekeka okubangelwa kukutshintshatshintsha kobushushu ngokukhawuleza, yandisa ubomi be-furniture linings kwaye iqinisekisa umgangatho weglasi ohambelanayo. Ngokungafaniyo nee-alumina mortars ezincinci, ayisabelani ne-glass melts, ithintela ungcoliseko olunokonakalisa iibhetshi zeemveliso zeglasi.
Esinye isicelo esibalulekileyo sikwizitishi zamandla ze-petrochemical kunye nezobushushu. Kwiibhoyila, kwii-incinerators, nakwii-reformers, i-alumina ephezulu enokuchasana ne-mortar ibopha izinto ezichasana ne-refractory ezijongene nobushushu obuphezulu, iigesi ze-flue, kunye nokuhlaselwa ngamakhemikhali ngamafutha kunye neemveliso eziphuma kwi-fuel. Kwizitishi zamandla ezisebenzisa amalahle, imelana nendalo yokurhawuzelela kwe-fly ash kunye nemiphumo yokubola ye-sulfur oxides. Kwizikrektri ze-petrochemical kunye nee-reformers, imelana nokuwohloka kwe-hydrocarbons kunye nomphunga obushushu obuphezulu, iqinisekisa ukuveliswa kwamandla okukhuselekileyo nokusebenzayo. Iimpawu zayo ezibalaseleyo zokunamathela ziyenza ilungele ukulungisa ii-linings ezonakeleyo zokuchasana, ukunciphisa ixesha lokungasebenzi kunye nokwandisa ubomi benkonzo yezixhobo ezibalulekileyo.
Ngaphandle kwale mizi-mveliso iphambili, i-alumina refractory mortar ephezulu isetyenziswa kwizityalo zokutshisa inkunkuma, apho iphatha khona amaqondo obushushu aphezulu kunye neegesi ezirhabaxa eziveliswa kukutshisa inkunkuma kamasipala neyemizi-mveliso. Ikwabalulekile kwiindawo zokwenziwa kwezinto zokubumba kunye nezinto ezisetyenziswa ekubumbeni isinyithi. Ukuguquguquka kwayo, kunye nokumelana kwayo nobushushu obuphezulu kunye nokuqina kwayo, kuyenza ibe sisisombululo esiqhelekileyo kuyo nayiphi na into efuna ukubopha okuthembekileyo kwiindawo ezinobushushu obukhulu.
Xa ukhetha i-alumina refractory mortar ephezulu, kubalulekile ukukhetha imveliso esemgangathweni ophezulu ehlangabezana nemigangatho yoshishino. Khangela i-mortar enokusasazwa kobukhulu be-particle ngokulinganayo, ukunamathela okuqinileyo, kunye nokumelana okuhle kakhulu nobushushu. I-mortar yethu ye-alumina refractory mortar ephezulu yenziwe kusetyenziswa izixhobo eziluhlaza eziphezulu kunye neendlela eziphambili zokucubungula, ukuqinisekisa ukuba inika ukusebenza okugqwesileyo kwizicelo ezifuna kakhulu. Nokuba ufuna ukufaka i-oven enkulu yentsimbi, ukulungisa i-oven ye-ceramic, okanye ukugcina i-boiler yesityalo samandla, i-mortar yethu inika ukuthembeka kunye nexesha elide olidingayo ukuze ugcine imisebenzi yakho isebenza kakuhle.
Musa ukuyekelela ekusebenzeni xa kufikwa kwizicelo ezisebenzisa ubushushu obuphezulu. Khetha i-alumina refractory mortar ephezulu ukuze uxhathise ubushushu obuphezulu, uxhathise ukugqwala, kunye nokuqina. Nxibelelana nathi namhlanje ukuze ufunde ngakumbi malunga neemveliso zethu kunye nendlela ezinokuphucula ngayo ukusebenza kwakho kakuhle kunye nokunciphisa iindleko zokulungisa.
Ixesha leposi: Disemba-03-2025
