Refractory

AZS Zircon Ramming Material

  • Friday, 12 August 2022
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AZS Zircon Ramming Material

AZS zircon ramming material is a refractory mass composed of oxidized fused zircon corundum particles. It is a specialized form of abrasive refractory mass. It is highly resistant to heat, fire, and other chemicals. Its properties make it an ideal ramming material for a variety of applications.

Unlike other refractories, AZS ramming mass has a relatively low proportion of Al2O3. The chemical composition of the mass is 48% Al2O3, 30% ZrO2, and 20% SiO2. Its crystal structure is a combination of corundum, mullite, and baddeleyite. Its thermal expansion and temperature strength are among its major advantages.

AZS ramming material has a higher al2O3 content than zircon. This means that the glass liquid will penetrate the zirconium ramming material through the brick joint. The speed of the glass liquid, its chemical composition, and its temperature will determine the erosion resistance of AZS zircon ramming material. For example, soda-lime-silica glass melt is highly aggressive. The driving force behind the corrosion mechanism is ionized alkali.

The AZS zircon ramming material is often used for fireproofing. Its high corrosion resistance and dense microstructure make it a popular choice for many applications. It can be used for tile work pools, molten pools, and glass furnace products. However, it is difficult to find AZS zircon bricks with the precise shape required. It is often made in special shapes for these applications.

The refractory materials used in glass furnaces must be corrosion-resistant, otherwise the quality of the glass products produced will suffer. In order to protect the furnace, AZS zircon ramming material should be used in the bottom of the glass kiln. AZS zircon ramming material provides better corrosion resistance than zirconium ramming material and should be chosen according to the type of glass produced.

The refractory material AZS contains silicon, alumina, and zircon. Energy-dispersive X-ray spectrometry and cast skins are used to characterize its composition. This ramming material is composed of two chemically different zones near the mold interface. Primary crystallization takes place in the dendritic ZrO2 zone while secondary crystallization occurs in the respective crystallization zones. As a result, AZS ramming material produces mullite.

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