About Refractory Njerwa

FAQ

MAFUNSO AMENE AMAFUNSA KAWIRIKAWIRI

Njerwa za Mullite Insulation

Q1: Ndi kachulukidwe kotani kamene kangapangitse njerwa zotchinjiriza zolemera mullite?

A1: Kachulukidwe kakang'ono kamene angachite ndi 0.5g/cm3,max ndi 1.3g/cm3.Standard ndi 0.6,0.8,0.9,1.0,1.1g/cm3 etc…

Q2: Kodi kutentha kwa njerwa ya mullite insulating ndi kotani?

A2: Kuwotcha kutentha kapena JM23 ndi 1300C, ndi 1400C kwa Jm26,1500C kwa JM28.

Q3: Kodi malo opangira njerwa za mullite ndi ati?

A3: Kugwiritsa ntchito kwake kumagwiritsidwa ntchito kwambiri, makamaka mu uvuni wa ceramic, zitsulo zachitsulo ndi zitsulo zotchinga mu uvuni, zimatha kukhudzana ndi moto mwachindunji.

Njerwa za ng'anjo yozungulira

Q1: Kwa ng'anjo yozungulira (monga ng'anjo ya simenti kapena ng'anjo ya laimu ndi zina zotero), ikhoza kupanga ng'anjo yonseyo?

A1: Inde, ndithudi. Tili ndi magulu akatswiri akatswiri, sitingangopereka dongosolo lathu kamangidwe kusonyeza aliyense chigawo ntchito mfundo ndi makulidwe, komanso tikhoza kupereka buku unsembe.

( Njerwa zowotchera simenti makamaka zikuphatikizapo: njerwa ya Magnesia chorme, njerwa ya Magnesia spinel & hercynite njerwa)

Q2: Kwa ng'anjo yozungulira (monga ng'anjo ya simenti, laimu kiln.etc), mumalimbikitsa njerwa ziti?

A2: Tipanga njerwa zosiyanasiyana motsutsana ndi madera osiyanasiyana, monga zone sintering, nthawi zambiri timalimbikitsa kugwiritsa ntchito njerwa za magnesia chrome kapena njerwa za magnesia ferro spinel,makasitomala ena aku Europe amasankha njerwa zathu za magnesia ferro spinel zomwe zimagwiritsidwa ntchito mu uvuni, zomwe ntchito zake zimakhala zabwinoko komanso kuipitsidwa. ndi yaying'ono.

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