special ceramic electronic industry used fire resistant corundum mullite sagger
Fire resistant Corundum Mullite sagger belongs to the field of refractory technology, followed by ingredients, molding and firing, from the fused mullite, corundum, alumina powder, silicon powder, calcium aluminate cement and sodium hexametaphosphate ingredients, Using self-flow casting molding method, mold drying after high temperature firing obtained. The corundum mullite sagger made of high temperature, thermal shock stability, long service life.
Characteristics &Advantage of corundum mullite sagger:
1.high temperature
2.thermal shock stability
3.long service time
4.various shapes
5.thermal conductivity performance
Chemical & Physical Index of corundum mullite sagger:
| Item | Fused 98 High pure corundum sagger | Fused 95 White corundum sagger | Fused 90 Corundum mullite sagger | Fused 85 Corundum mullite sagger | Sintered corundum mullite sagger |
| Al2O3% | ≥98 | ≥95 | ≥90 | ≥85 | ≥80 |
| SiO2% | ≤0.2 | ≤3 | ≤8 | ≤13 | ≤18 |
| Fe2O3% | ≤0.2 | ≤0.3 | ≤0.3 | ≤0.5 | ≤0.5 |
| Bulk density g/cm3 | ≥3.2 | ≥3.1 | ≥3 | ≥2.8 | ≥2.7 |
| Apparent porosity% | ≤19 | ≤18 | ≤18 | ≤18 | ≤18 |
| C.C.S.(mpa) | ≥100 | ≥100 | ≥100 | ≥90 | ≥80 |
| RUL ℃(0.2mpa,0.6%) | ≥1700 | ≥1700 | ≥1700 | ≥1650 | ≥1630 |
| application | Mainly used in the key parts of steel, electronics, petrochemical, chemical, glass, nonferrous metals, refractories, new materials, special ceramics |
Application of Corundum mullite sagger:
Corundum mullite sagger is widely used in special ceramics, electronic ceramics, functional ceramics, heat treatment, IF forging furnace, metal forging, piezoelectric ceramics, electrical ceramics, metal ceramics, magnetic materials, rare earth phosphor, long afterglow powder Lithium carbonate positive and negative grade materials, lithium cobalt oxide, cobalt oxide, strontium carbonate, lithium iron phosphate, chemical powder, nano iron oxide, barium carbonate powder, zirconia powder, electronic ultra pure powder inorganic new material field.
