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Leben corundum la isku daray

Leben corundum la isku daray

Faa’iidooyinka badeecada: heerkulka caadiga ah ee heerkulka cadaadiska (ilaa 340MPa), heerkulka jilcinta culeyska sare (heerkulka jilicsanaanta bilowga oo ka sarreysa 1700 ° C), xasilloonida kiimikada wanaagsan, aashitada wanaagsan iyo jajabka alkali, biraha la shubay iyo iska caabinta galaaska.

Codsiga badeecada: Isticmaalka ugu weyn ee lebenka corundum-ka ah ee la isku qasay waa foornooyinka dhalada borosilicate, suumanka dhuxusha ee tunnel-ka heerkulka sare leh, giraanta dubista foornada shaqaysa, foornooyinka dhalaalaya birta aan birta ahayn, iwm. qaybta caddaynta, qaybta qaboojinta, barkadda shaqada, iwm. Intaa waxaa dheer, bulukeeti α-ed corundum oo la isku daray ayaa sidoo kale loo isticmaalaa saqafka iyo qaab-dhismeedka sare ee foornooyinka dhalada, orod-qaybiyeyaasha kabka si joogto ah iyo biraha kulaylinta foornada kululaynta. Lebenkii corundum beta ee la isku qasay waxaa loo isticmaali karaa oo kaliya dhismaha sare ee kilyaha dhalada ee leh boodhka SO2, sida dhismaha sare ee barkadda shaqada, gidaarka naaska ee u dhow gubaniyaha, gubidda foornada yar, derbiga laalaada iyo wixii la mid ah .

sharaxaadda alaabta

Wejiga ugu qaalisan ee lebenka corundum ee la isku daray waa corundum, iyo waxa ku jira Al2O3 guud ahaan wuu ka sarreeyaa 93%. Ka -hortagga naxdinta kuleylka ee lebenkii corundum ee la isku daray ayaa si dhow ula xiriira jirka. Badeecadaha cufan ee cufan waxay leeyihiin iska caabin daxalka oo ka fiican, laakiin iska caabin shoog kuleyl oo liita. Lebenkii corundum ee la isku daray ayaa loo sii kala qaybin karaa fus corundum leben, α-β corundum oo la isku daray iyo leben la isku daray und corundum.

Astaamaha lebenkii corundum ee la isku daray:

1. Xoog cadaadis sarreeya heerkulka qolka (ilaa 340MPa)

2. Heerkulka jilcinta culeyska sare (heerkulka jilicsanaanta hore wuxuu ka sarreeyaa 1700 ℃)

3. Deganaansho kiimikaad oo wanaagsan

4. Iska caabbinta wanaagsan ee dhagaxa aashitada iyo alkali, biraha dhalaalay iyo galaaska

mashruuca rick-Corundum lebenkii a-B lebenkii Corundum rick Corundum Brick
SiO2%
Al2O3% > 99 > 94 > 94
Fe2O3%
Na2O% <7
MgO%
TiO2 %
Porosity muuqda % 0 ~ 20 0 ~ 5 5 ~ 15
Cufnaanta cufnaanta g / cm3 > 3.8 > 3.4 > 3.0
Awoodda dabacsanaanta Mpa > 70 > 150 > 20
Dib -u -milicsiga ℃ > 1900