Zirconium-corundum ramming mass consists of molten granules of zirconium corundum by oxidation and a small amount of additives. It has the characteristics of curing at atmospheric temperatures, high strength at high temperature, low thermal expansion and shrinkage, as well as high resistance to erosion by liquid glass. It is an ideal material for the sealing layer at the bottom of the melt bath of a glass furnace..
Mass parameters of zirconium-corundum tamper
| Subject | Index | ||
| AZSD-5 | AZSD-0.6 | AZSD-0.4 | |
| Maximum grain size mm | 5 | 0.6 | 0.4 |
| ZrO2 % | ≥30 | ||
| Al2O3 % | ≥48 | ||
| SiO2 % | ≤20 | ||
| Bulk density g/cm3 | 3.2 | 3.1 | 3.1 |
| Phase composition | α-Al2O、Bsiaddeleit, quartz, Glass phase | ||
| Apparent porosity % | 3≤20 | ||
| Compressive strength MPa 1400℃×3h | ≥25 | ||
Application of zirconium-corundum ramming mass
Zirconium-corundum ramming mass can be used in the energy sector, mechanical engineering, metallurgical industry, petrochemical industry, construction, steel industry, etc..
What testing equipment does Rongsheng have??
- Equipment for determining the softening point under load
- Heat Resistance Test Equipment
- Equipment for testing chemical indicators
- Compressive Strength Testing Equipment
- Оборудование для испытания на кажущуюся пористость
- Оборудование для испытания на ползучесть при высокой температуре
- Оборудование для сушки образцов
Rongsheng Refractories Group







