Zirconium corundum refractory castable is used for cold patching and heat patching for the safety layer, the kiln wall protective layer and the upper structure of the glass kiln bottom.
Zirconium corundum refractory castable is used for cold patching and heat patching for the safety layer, the kiln wall protective layer and the upper structure of the glass kiln bottom.
|
Al2O3 % ≥ |
45 |
45 |
45 |
|
|
ZrO2 % ≥ |
29 |
30 |
30 |
|
|
SiO2 % ≤ |
20 |
18 |
18 |
|
|
Bulk density g/cm3 ≥ |
3.0 |
2.65 |
2.8 |
|
|
Flexural strength MPa ≥ |
110℃×24h drying |
11.5 |
|
12.1 |
|
1100℃×2h after burning |
18 |
|
18 |
|
|
Compressive strength/MPa ≥
|
110℃×24hdrying |
85 |
|
85 |
|
1100℃×2h after burning |
100 |
|
100 |
|
|
Resistance to glass solution erosion |
good |
good |
good |
|
|
The tendency of bubbles to precipitate |
weak |
weak |
weak |
|
|
Casting water requirement /% |
4～5 |
8～10 |
10～11 |
|
| Application |
kiln bottom sealing layer |
for the next layer of 50V upper layer bricks |
filling gaps between surface bricks |
|
EAF tap-hole filler is developed with magnesite, forsterite and silica as the main materials according to different requirements, and shows the features of easy installation, good sintering, floating resistance, high self-open rate and good safety performance.
Al2O3-SiC Castable for Iron Ladle is developed with high quality bauxite, corundum and SiC as the main raw materials, and bonded by sol.
Upper and lower nozzles are resin bonded products based on corundum, magnesium aluminate spinel and graphite as main raw materials. Nozzle and well block for ladle have excellent thermal shock resistance, high temperature strength and good corrosion and erosion resistance.
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