Introduction to fused zirconium corundum brick(AZS Bricks):
Electric fused zirconium corundum bricks, also called Fused AZS bricks, are arranged according to the three chemical components in the phase diagram of Al2O3-ZrO2-SiO2. Among them, 33, 36 and 41 are named according to the content of Al2O3. For example, AZS33 refers to the fused zirconium corundum brick with an alumina content of 33%.
Parameters of Kerui Fused AZS Bricks
| ltem | AZS-33 | AZS-33 | AZS-36 | AZS-36 | AZS-41 | AZS-41 |
| – | Y | H | Y | H | Y | H |
| Al2O3, ≥ | 50 | 50.5 | 48 | 49 | 45 | 45.5 |
| ZrO2, ≥ | 32.0 | 32.0 | 35.0 | 35.0 | 40.0 | 40.0 |
| SiO2, ≤ | 15.0 | 16.0 | 13.5 | 13.5 | 13.0 | 12.0 |
| Na2O, ≤ | 1.5 | 1.5 | 1.4 | 1.4 | 1.3 | 1.3 |
| BD, PT.QX, ≥ | 3.40 | 3.30 | 3.45 | 3.40 | 3.55 | 3.50 |
| BD, MS, ≤ | 3.50 | 3.45 | 3.60 | 3.55 | 3.70 | 3.65 |
| BD, WS, ≤ | 3.60 | 3.55 | 3.70 | 3.65 | 3.80 | 3.75 |
AZS-33 Bricks
AZS-33 bricks has good corrosion resistance to liquid glass, is not easy to produce stones or other defects, and has low possibility of producing small bubbles. Therefore, AZS-33 bricks are widely used in glass kilns, mainly applicable to the upper structure of the melting pool, the pool wall bricks and paving bricks of the working pool, and the material channel.
AZS-36 Bricks
In addition to having the same eutectic body as the AZS33 bricks, AZS36 brick is suitable for areas with high liquid glass flow rate and high temperature, such as melting pool wall bricks, paving bricks, charging port bricks, etc., because of the increase of more interlocking zirconia crystals and the decrease of glass phase content.
AZS-41 Bricks
AZS41 bricks contains more uniformly distributed zirconia crystals besides the eutectic of silicon oxide and aluminum oxide. In the zirconia corundum brick system, its corrosion resistance is the best. Therefore, the key parts of the glass furnace were selected to balance the life of these parts with that of other parts.
AZS41 is the most excellent product in the melting and casting AZS series, with extremely high resistance to liquid glass corrosion and extremely high glass phase seepage temperature, and extremely low pollution to liquid glass. It is widely used in key parts such as tank wall, feeding inlet corner, flow hole, kiln ridge, tank bottom bubbling and all electric melting furnace at the hot spot of glass furnace.
AZS-36S Bricks
The low silicon and low sodium melting and casting AZS bricks have the characteristics of low glass phase content, high glass phase seepage temperature, good high-temperature stability, and strong resistance to corrosion of liquid glass. They are melting and casting refractories for realizing overall thermal insulation, energy conservation and long life of the furnace.
