Zirconia bricks are advanced refractory materials that find a wide range of applications in industries where high temperatures and harsh chemical environments are present. These bricks are primarily composed of zirconium dioxide (ZrO2), a ceramic material known for its exceptional thermal and chemical resistance.
Zircon bricks are refractory products made of natural zircon as raw material and soft clay as binder. Its production process is as follows: the natural zircon sand is crushed and made into agglomerates, and then crushed into a suitable particle size after calcining, and then compounded and kneaded, trapped, high-pressure formed, dried, and fired at high temperature.

|
NR-65A |
NR-65B |
ZR-65 |
ZR-69 |
|
|
Physical and Thermo-Mechanical Properties |
||||
|
65 |
65 |
65 |
69 |
|
|
68 |
18 |
10 |
19 |
|
|
3.85 |
3.75 |
4.25 |
4.15 |
|
|
150 |
120 |
300 |
200 |
|
|
Refractoriness under load 0.2Mpa degree Greater than or equal to |
1710 |
1705 |
1680 |
1680 |
- Glass contact portions of alkali-free or low-alkali glass melting furnaces.
- As neutral bricks and skew bricks in soda-lime glass kilns.
- Paving and sub-paving, channel blocks, and sidewalls in glass fiber furnaces and floating glass tanks.
- Upper areas of flame spaces or regions with frequent thermal shocks, as well as in the linings of alkali-free or low-alkali glass, sodium-calcium glass, borosilicate glass, ceramic glass, lead glass, and other technical glass melting furnaces.
- Transition regions between upper roof silica bricks and fusion zirconia-corundum bricks or fusion zirconia-mullite bricks.

Zirconia bricks are also very strong and resistant to corrosion, making them ideal for use in high-temperature applications where heat insulation is critical. For example, zirconia bricks are often used in furnaces, kilns, and incinerators to help prevent heat loss and protect the surrounding materials from damage.
If you are looking for a high-performance heat insulation material, AGRM zirconia bricks are a great option.


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