Fused Cast High Zirconium Series
Fused Cast
Item Code：A1401
Product Introduction
Fused cast high zirconium series is a kind of refractory for special glass industry. It contains very high zirconium (≧ 94%) and lower glass phase (≦ 6%).
Due to a quite low content of Na2O, the series owns such low glass phase and strong erosion resistance. Moreover, its production is extremely difficult, especially for special shaped blocks.
With the growth of technology in recent years, many of domestic enterprises already have abilities to mass produce for commercial field of glass industry.
Application
High Zirconium Series was firstly applied in CRT industry as early as the 1990s, and achieved remarkable outcomes. In recent years, it has been widely used in fields of oxygen-fuel furnace, electronic glass ceramics, and high alumina glass.
Characteristics
High zirconium series has stable physical and chemical properties and good high-temperature corrosion resistance. It has been widely used in feeder, electrode void blocks, bubble block and special glass
- Alkali-free glass
- Glass ceramics
- Borosilicate glass
- Opal fluoride glass
- High alumina glass
- Other special glasses
- Alkali-free glass
- CRT glass
- Lead glass
- Borosilicate glass
- Opal fluoride glass
- High alumina glass
- Plasma display panel glass
Physical and Chemical Indicators
| Items | Index | Remark | ||
| Al2O3 | ≧ | % | 1.2 | |
| ZrO2 | ≧ | 94.2 | ||
| Na2O | ≦ | 0.3 | ||
| SiO2 | ≦ | 4.0 | ||
| Fe2O3 +TiO2 | ≦ | 0.3 | ||
| Items | Unit | Index | Remark |
| True Density | Kg/m³ | 5420 | |
| C.C.S | pa | ≧3.5X108 | (3500kg/cm2) |
| R.U.L (0.2MPa) | ℃ | ≧1750 | |
| At 850-1200℃，the volume increased after 25 thermal cycles | ≦0.3% |