Sohle seo o hlokang ho se tseba ka Mullite Bricks: Classification & Applications

Selelekela​

Liindastering tse nang le mocheso o phahameng—ho tloha ho etseng tšepe ho isa tlhahisong ea khalase—thepa e halefisang ke motheo oa ts'ebetso e sireletsehileng le e sebetsang hantle. Har'a tsena,litene tsa mulliteli hlahella ka botsitso ba tsona bo ikhethang ba mocheso, ho hanyetsa mafome, le matla a mechini. Ho utloisisa lihlopha tsa tsona le ts'ebeliso ho bohlokoa bakeng sa likhoebo tse batlang ho ntlafatsa nako ea lisebelisoa le ho fokotsa litšenyehelo tsa ts'ebetso. Sengoloa sena se hlalosa mefuta ea bohlokoa ea litene tsa mullite le ts'ebeliso ea tsona ea lefats'e la 'nete, ho u thusa ho etsa liqeto tse nang le tsebo bakeng sa litlhoko tsa hau tsa indasteri.​

Tlhophiso ea Litene tsa Mullite​

Litene tsa Mullite li arotsoe ka lihlopha ho latela mekhoa ea tlhahiso le likarolo tse ekelitsoeng, e 'ngoe le e 'ngoe e etselitsoe litlhoko tse itseng tsa indasteri.

1. Litene tse nang le Sintered Mullite​

E entsoe ka ho kopanya alumina le silika e hloekileng haholo, ho bopa motsoako, le ho o silafatsa mochesong o kaholimo ho 1600°C, litene tsa mullite tse sintered li na le sebopeho se teteaneng le masoba a tlase (hangata li ka tlase ho 15%). Litšobotsi tsena li li fa khanyetso e ntle ea ho tsofala le khanyetso ea mocheso—e loketseng libaka tse nang le liphetoho tse ngata tsa mocheso. Tšebeliso e tloaelehileng e kenyelletsa masela a li-kiln tsa ceramic, li-stove tsa blast furnace tse chesang, le likamore tsa ho chesa tsa boiler.​

2. Litene tsa Mullite tse entsoeng ka motsoako​

Li hlahisoa ka ho qhibilihisa thepa e tala (alumina, silika) ka sebōping sa motlakase sa arc (se fetang 2000°C) le ho lahlela motsoako o qhibilihisitsoeng ka har'a hlobo, litene tsa mullite tse kopantsoeng ka motsoako li na le maemo a litšila a tlase haholo le bohloeki bo phahameng ba kristale. Ho hanyetsa ha tsona ho phahameng khoholehong ea lik'hemik'hale (mohlala, ho tsoa khalaseng e qhibilihisitsoeng kapa slags) ho li etsa khetho e ntle bakeng sa li-regenerator tsa sebōping sa khalase, libate tsa khalase tse phaphametseng le lisebelisoa tse ling tse pepesetsoeng ke mecha e matla e qhibilihisitsoeng.​

3. Litene tse bobebe tsa Multite​

Li entsoe ka ho eketsa metsoako e etsang masoba (mohlala, lerōle la mapolanka, graphite) nakong ea tlhahiso, litene tse bobebe tsa mullite li na le masoba a 40-60% le bongata bo tlase haholo ho feta mefuta e sintered kapa e kopantsoeng. Molemo oa tsona oa bohlokoa ke conductivity e tlase ea mocheso (0.4-1.2 W/(m·K)), e fokotsang tahlehelo ea mocheso. Li sebelisoa haholo e le likarolo tsa ho thibela mocheso ka har'a li-oven, li-oven le lisebelisoa tsa kalafo ea mocheso, moo boima le ts'ebetso ea matla e leng lintho tsa bohlokoa.​

4. Litene tsa Zircon Mullite​

Ka ho kenyelletsa zircon (ZrSiO₄) motswakong wa thepa e tala, ditene tsa zircon mullite di fumana tshebetso e ntlafetseng ya mocheso o phahameng—di ka mamella mocheso ho fihlela ho 1750°C mme tsa hanela kgoholeho ya mobu e bakwang ke mafome a asiti. Sena se etsa hore di lokele ditikoloho tse thata tse kang dionto tsa ho qhibilihisa tshepe tse se nang ferrous (mohlala, disele tsa ho fokotsa aluminium) le dibaka tsa ho tjhesa samente rotary oven.​