Slag resistant and wear resistant positions, such as the furnace hearth, slag resistant protecting wall and furnace pit steel spout of heating furnace;
luminum-water ladle, launder, degassing box, filter box, and induction furnace liner;
Integral casting and prefabricating of slag line and slag-off slope of aluminum melting furnace and holding furnace;
Wear resistance furnace liner of boiler, combustion furnace and coal-gas producer.
|
Model |
NMJ-1 |
NMJ-2 |
NMJ-3 |
NMJ-4 | |
|
% ,Al2O3
Chemical composition |
≥60 |
≥65 |
≥70 |
≥80 | |
|
℃
Maximum service temperature |
1400 |
1450 |
1550 |
1700 | |
|
MPa
Bending strength/
Crushing strength |
110℃×24h |
≥7/55 |
≥8/60 |
≥9/65 |
≥9/75 |
|
1400℃×3h |
≥9/80 |
≥11/90 |
≥13/100 |
≥13/100 | |
|
%
Linear change rate |
1400℃×3h |
±0.3 |
±0.3 |
±0.3 |
±0.3 |
|
g/cm3
Bulk density 110℃ |
2.4～2.6 |
2.6～2.8 |
2.8～3.0 |
2.9～3.1 | |
|
water cooling at 900℃ |
≥22 |
≥22 |
≥22 |
≥20 | |