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High Zirconium Series

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

Improving erosion resistance of below glass:
  • Alkali-free glass
  • Glass ceramics
  • Borosilicate glass
  • Opal fluoride glass
  • High alumina glass
  • Other special glasses
Improving quality of below glass:
  • 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  
Physical Indicators
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%

 

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Henan AGRM FurnTech Co., Ltd
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