Zircon Refractory Brick Introduction
Zircon brick is a kind of neutral material , which is made of the ZrO2- SiO2 as the principle material, zircon refractory brick has the ability of strong resistance to glass liquid, good creep resistance and high refractoriness under load. Zircon bricks are mainly used in crown springer or the separation brick for the breast wall and crown, kiln eye, inspection hole, etc. The content of Zircon in zircon brick is 64~67%;Its refractoriness under load is equal or greater than 1650℃, the density is form 3.70 to 3.75 g/cm3.
Zircon Refractory Brick Properties
- Good mechanical strength
- High temperature resistance
- Good thermal shock resistance
- Anti-glass corrosion
Zircon Refractory Brick Physical & Chemical Index
| Zircon Bricks | ||||||
| Item/Index | ZR-30 | ZR-50 | ZR-55 | ZR-60 | ZR-62 | |
| Al2O3 % | 42 | 10 | 6 | 4 | – | |
| SiO2 | 20 | 34 | 35 | 30 | 34 | |
| ZrO2 | 30 | 50 | 55 | 60 | 62 | |
| Bulk Density (g/cm3) | ≥3.10 | ≥3.30 | ≥3.45 | ≥3.50 | ≥3.60 | |
| Apparent Porosity % | ≤21 | ≤20 | ≤20 | ≤21 | ≤20 | |
| Compressive Strength (kg/cm2) | ≥500 | ≥400 | ≥500 | ≥500 | ≥500 | |
| Refractoriness Under Load ℃ (T2) | ＞1500 | ＞1450 | ＞1500 | ＞1600 | ＞1550 | |
| Expansion at 1000℃ (%) | 0.6~0.8 | 0.4~0.6 | 0.4~0.6 | 0.4~0.6 | 0.4~0.6 | |
| Thermal Conductivity | 500℃ | 1.7 | 1.4 | 1.3 | 1.2 | 1.2 |
| 1000℃ | 1.8 | 1.6 | 1.5 | 1.5 | 1.5 | |
| Application | Glass Furnace | Nozzle Seat | Ladle | Ladle | Ladle Glass Furnace | |
Zircon Refractory Brick Application
- Ladle lining in metallurgical industry
- Glass melting furnace
- Areas of crown, burner, thermal couple, peep hole
- Secondary layer of melter bottom and back lining.
- Areas of glass tank, such as paving part and secondary layer of paving bottom, back lining, wall and bottom of fore hearth, flowing spout and spinning portion and melter.
- Upper area of flame space or frequent thermal shock position.
- Lining of alkali-free or low-alkali glass, sodium-calcium glass, boron-silicate glass, ceramic glass, lead glass, and other technical glass melting furnace.
Zircon Refractory Brick Supplier
RS refractory manufacturer is a professional refractory material supplier, and we are specialized in producing zircon refractory brick with high quality and competitive price, we adopt zircon fire bricks with high quality raw material and produced by strict control. If you want to buy zircon refractory bricks, you can feel free to contact with us!
Zircon Refractory Brick For Sale
Zirconia Refractory Brick
