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fused cast azs block as a refractory block plays an important role in glass industry. The main chemical composition of fused cast AZS block is Aluminium oxide, zircon oxide and Silicon Oxide, and Aluminium oxide has the special property of a relatively high thermal conductivity, zircon oxide has the property of superior mechanical, thermal, electrical, chemical and optical properties. When they are bonded together with special method, their good performance is revealed to fused cast AZS block.

The main factors that affect the formation of the kiln skin are as following:

1. The chemical composition of raw materials: The kiln skin is the product of the process formed from liquid phase into solid phase of the material. The more the aluminum and iron components is, the more the liquid phase, the easier the kiln skin formed.

Casting is a technology to produce refractories, like fused cast azs block, fused cast alumina block, fused cast high zirconia block. These bricks can be used in the liner of glass furnace, such the tank bottom, side wall, throat, fore hearth, corner, doghouse,etc.

The specific production flow of casting is as below:

1. Proportion the raw material

zircon brick is one kind of refractory in which zircon is as the main crystal phase, it is an important firebrick in Zircon related refractory bricks. It is acid refractory with the advantages of high mechanical strength, high refractoriness under load, excellent thermal shock stability, good creep resistance and good corrosion resistance to glass liquid.

According to the quantity of shrinkages, casting of fused cast azs block can be divided into below four styles:

Casting is a 6000 year old process which is widely applied to many industries, such as metal, plastic and resign，in addition, casting is also used in glass industry. Casting method is applied to produce fire bricks which is used in the glass furnace. As this method can produce bricks which have less shrinkages, high density, long using life, high temperature resistance and strong anti-corrosion to galss liquid. So casting is widely used in producing glass.

zircon brick is produced by sintered method which contains three steps, they are encastage, kiln-firing and kiln-out.

Encastage

What does AZS mean?

Anti-corrosive property means the ability to resist various kinds of corrosive medium under high temperature, such as slag, fuel, glass melting liquid, acid, alkali, electrolyte liquid and gaseous substances. Anti-corrosive property is a very important index to measure the chemical corrosion and mechanical wear of fused cast azs block.

However, what are the factors that can affect the Anti-corrosive property of fused cast azs block? The following several aspects are for your reference.

Zircon is a mineral belonging to the group of nesosilicates. Its chemical name is zirconium silicate and its corresponding chemical formula is ZrSiO4. In recent years, zircon has attracted considerable attention as a high-technology material for industrial applications, because of its superior mechanical, thermal, electrical, chemical and optical properties. Due to these special properties, zircon is also widely used in glass industry which is called zircon brick.