Njerwa ya Corundum

Ubwino wazogulitsa: mphamvu yayikulu, kutentha kwambiri, kukana dzimbiri, komanso kukhazikika kwamankhwala.

Mafotokozedwe Akatundu

Njerwa zapamwamba kwambiri za corundum zimagwiritsa ntchito tabular corundum ndikusakanikirana ndi corundum ngati zida zazikulu zopangira, kudzera pakusanthula kwasayansi komanso koyenera, ndizowonjezera magwiridwe antchito, kukakamiza kwambiri, kutentha kwambiri, komanso zinthu zomwe zimatsitsimula zimadziwika ndimphamvu yayitali komanso kutentha kwambiri kukana. Dzimbiri kukana ndi bata wabwino mankhwala.

Zizindikiro zakuthupi ndi zamankhwala

polojekiti	Njerwa zapamwamba kwambiri za corundum Zamgululi DL-99	Njerwa za Corundum mulliteDL-95	Njerwa za Corundum mulliteDL-90	Njerwa za Corundum mulliteDL-80
Anayankha	99	95	90	80
Machiya ％ ≤	0.3	3.0	9.0	18
@ Alirezatalischioriginal	0.2	0.2	0.5	0.5
R2O% ≤	0.3	0.6	0.6	0.4
Kuchuluka kwa kuchuluka / (g / cm³)	3.0	2.9	2.85	2.7
Kuponderezana mphamvu kutentha / Mpa≥	75	100	100	60
Zowonjezera ℃	1790	1790	1790	1790
Katundu woyambira wofewetsa 0.2Mpa ℃ ≥	1700	1700	1700	1650
Kuchepetsa kusintha kwa mzere (1600 ℃ × 3h)% ≤	0.2	0.2	0.2	0.3
Matenthedwe okhazikika nthawi 1100 ℃ madzi kuzirala≥	6	10	10	20