The main varieties are: α-βAl203 bricks, α-Al203 bricks, β-Al203 bricks:(1) α-Al203 bricksα-AI203 bricks have no glass phase and are mainly α-Al203, but there is also a small amount of β-Al203 in them. These bricks are stable at 1850℃, and their resistivity i··· ...

At present, the refractory bricks used for small furnace tongues mainly use fused AZS bricks. The fused bricks have good strength, high temperature resistance and corrosion resistance, but their thermal shock resistance is poor and they are prone to cracks. This is be··· ...

When using AZS fused bricks to build the glass kiln arch, the following matters should be noted during ignition and baking:(1) Cold inspection before ignition includes inspection of gaps in the wall, openings, bottom, expansion joints, steel structure and other parts ··· ...

Glass defects caused by refractory bricks may be of the following three types:1. StonesWhen larger particles of refractory bricks for glass kilns fall into the glass melt and cannot be completely dissolved by the melt, "stones" will appear in the glass. Part··· ...

Refractory materials used in foreign glass kilns mainly include the following six categories:1. AZS and high zirconia bricksThe production process of fused AZS bricks is mainly to improve their corrosion resistance and wear resistance. In addition to adopting oxidatio··· ...

I. Silica BricksSilica bricks have good high-temperature properties such as high refractoriness under load and low creep under high temperature. They also have good high-temperature corrosion resistance. Due to their mature production process and low price, they are w··· ...

The main problem with oxy-fuel combustion refractory materials is the refractory materials inside the kiln. The refractory materials in the flame space of traditional air-assisted combustion kilns are generally based on siliceous materials. The use of electric melting··· ...

The biggest disadvantage of silica bricks is poor thermal shock resistance (the number of water cooling cycles is generally 1 to 4 times). In addition, the thermal conductivity of silica bricks is low, only about 1/50 of the thermal conductivity of steel, and it is a ··· ...

The pool wall bricks of the melting part of ordinary glass melting furnaces generally adopt a 250mm thick and 1350mm high overall pool wall shallow pool structure, and the pool wall bricks are made of fully oxidized tilted cast fused zirconium corundum material. Gener··· ...

Similarly, the temperature in this area is much lower than that in the melting section. The environment of the upper structure of the clarifier section depends largely on the structure of the lattice wall, that is, the way the end wall is separated from the melting se··· ...