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.
Glass ceramics
Borosilicate glass
Opal fluoride glass
High alumina glass
Other special glasses
CRT glass
Lead glass
Borosilicate glass
Opal fluoride glass
High alumina glass
Plasma display panel glass
Physical and Chemical Indicators
Physical Indicators
Product
Package
Production
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.
Improving erosion resistance of below glass:
Alkali-free glassGlass ceramics
Borosilicate glass
Opal fluoride glass
High alumina glass
Other special glasses
Improving quality of below glass:
Alkali-free glassCRT 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 | ||
Physical Indicators
| Items | Unit | Index | Remark |
| True Density | Kg/m³ | 5420 | |
| C.C.S | pa | >=3.5X108 | (3500kg/cm2) |
| R.U.L (0.2MPa) | ºC | >=1750 | |
| At 850-1200ºC,the volume increased after 25 thermal cycles | <=0.3% |
Product
Package
Production