Brand:Wilead
Model:Fused zirconia corundum
MOQ:20 Metric Ton
Fused zirconia mullite is a kind of high purity refractory materials, which
is prepared by melting high purity zirconite and alumina according to the
relevant proportion in electric arc furnace, then cooling.
Fused zirconia mullite is characterized by good homogenization, low
porosity, good thermal conductivity, low thermal expansion coefficient
and good slay resistance. It is the ideal material for producing high grade
refractory products, such as zirconia-based slide plate, stopper, long nozzle and sliding gate nozzle. When
zirconia mullite is used as aggregate in these products, their thermal shock
resistance and corrosion resistance are improved by crystal phase transition
of zirconia in zirconia mullite about 1000-1200℃ with 7%-9% volume shrinkage and microwaves formation in crystal grain.
| CHEMICAL COMPOSITION | Grit>0.1mm | Powder≤0.1mm |
| Al2O3%≥ | 46±3 | 46±3 |
| SiO2%≥ | 18±2 | 18±2 |
| ZrO2%≤ | 37±3 | 37±3 |
| Fe2O3%≤ | 0.15 | 0.25 |
| R2O%≤ | 0.3 | 0.3 |
| Apparent porosity%≤ | 3.0 | |
| Bulk density/(g.cm-3) ≥ | 3.6 | |




