Walxaha | Unug | Tusmada | Caadiyan | |
Halabuurka kiimikada | Al2O3 | % | 73.00-77.00 | 73.90 |
SiO2 | % | 22.00-29.00 | 24.06 | |
Fe2O3 | % | 0.4 max (Ganaax 0.5% ugu badnaan) | 0.19 | |
K2O+Na2O | % | 0.40 max | 0.16 | |
CaO+MgO | % | 0.1% ugu badnaan | 0.05 | |
Refractority | ℃ | 1850min | ||
Cufnaanta weyn | g/cm3 | 2.90 daqiiqo | 3.1 | |
Nuxurka wajiga muraayadda | % | 10max | ||
3Al2O3.2SiO2Marxaladda | % | 90min |
F-Fused;M-Mullite
Walxaha | Unug | Tusmada | Caadiyan | |
Halabuurka kiimikada | Al2O3 | % | 69.00-73.00 | 70.33 |
SiO2 | % | 26.00-32.00 | 27.45 | |
Fe2O3 | % | 0.6 max (Ganaax 0.7% ugu badnaan) | 0.23 | |
K2O+Na2O | % | 0.50max | 0.28 | |
CaO+MgO | % | 0.2% ugu badnaan | 0.09 | |
Refractority | ℃ | 1850min | ||
Cufnaanta weyn | g/cm3 | 2.90 daqiiqo | 3.08 | |
Nuxurka wajiga muraayadda | % | 15max | ||
3Al2O3.2SiO2Marxaladda | % | 85min |
Fused Mullite waxa soo saara habka Bayer alumina iyo ciid quartz nadiif ah oo sarreeya iyada oo ku dhex milmay foornada koronto ee aadka u weyn.
Waxay leedahay wax badan oo ka mid ah kiristaalo mullite-u eg irbad taas oo bixisa dhibic dhalaalaysa sare, ballaarinta kulayl yar rogi kara iyo iska caabin aad u fiican ee shoogga kulaylka, qallafsanaan hoos load, iyo daxalka kiimikada heerkulka sare.
Waxaa si weyn loo isticmaalaa sida alaabta ceeriin ee refractories fasalka sare, sida leben dahaarka ee foornada dhalada ah iyo leben loo isticmaalo in foornada dabayl kulul ee warshadaha birta.
Waxa kale oo loo isticmaalaa foornada dhoobada iyo warshadaha petrochemical iyo codsiyo kale oo badan.
Ganaaxyada Fused Mullite waxaa loo isticmaalaa daahan Aasaaska ah caabbinta shoogga kulaylka iyo sifooyinka aan qoyanayn
• Degganaanshaha kulaylka sare
• Balaadhinta kulaylka oo hooseeya
• Iska caabbinta weerar-ku-soo-bax heerkul sarreeya
• Halabuurka kiimikada deggan
Mullite, nooc kasta oo macdan naadir ah oo ka kooban aluminium silicate (3Al2O3 · 2SiO2).Waxa la sameeyay marka la shido alaabta ceeriin ee aluminosilicate waana waxa ugu muhiimsan ee ka kooban alaabada cadcad ee dhoobada ah, pocelains, iyo kuwa heerkulka sare leh ee dahaadhida iyo walxaha celiska ah.Waxyaabaha ay ka kooban yihiin, sida mullite, haysashada saamiga alumina-silica ee ugu yaraan 3:2 kama dhalaali doonto ka hooseeya 1,810 ° C (3,290 ° F), halka kuwa saamiga hoose leh ay qayb ahaan dhalaali doonaan heerkul hooseeya 1,545 ° C (2,813 ° F). F)
Mullit dabiiciga ah waxaa loo helay sida cad, kiristaalo dhaadheer oo ku yaal Island of Mull, Hebrides Inner, Scot.Waxa lagu aqoonsaday oo keliya xayndaabyo isku dhafan oo argillaceous ah (dhoobo) ah oo ku yaal dhagxaanta gubanaya, xaalad soo jeedinaysa heerkul aad u sarreeya oo samaynta.
Marka laga soo tago muhiimada ay u leedahay dhoobada caadiga ah, mullite waxa ay noqotay doorasho shay oo loogu talagalay dhoobada qaab dhismeedka horumarsan iyo shaqaynta sababtoo ah sifooyinkeeda wanaagsan.Qaar ka mid ah sifooyinka cajiibka ah ee mullite waa balaadhinta kulaylka hooseeya, kulaylka kuleylka hooseeya, caabbinta gurguurta oo aad u wanaagsan, xoog heerkul sare ah, iyo xasilooni kiimikaad oo wanaagsan.Habka samaynta mullittu waxay ku xidhan tahay habka la isugu daray alumina- iyo fal-celiyeyaasha ka kooban silica.Waxa kale oo ay la xidhiidha heerkulka kaas oo falcelintu u horseeddo samaynta mullitit (heerkulka mullitisation).Heerkulka kala-soocidda ayaa la sheegay inuu kala duwan yahay ilaa dhowr boqol oo darajo Celsius taasoo ku xidhan habka isku-darka la isticmaalay.