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As to the melting part of bottle furnace, the required refractory bricks shall be strictly selected.

1. Arch of furnace (crown): work temperature is 1500～1600℃, contact with high temperature alkali vapor directly, The selection of refractory bricks should use high quality silica bricks.

2. Contact area of the flow in the vault: containing arch brick, breast wall brick, back wall brick, tuck stone brick and nozzle brick whose working temperature is 1500～1600℃, and fused cast AZS block is mainly used.

Everybody is not strange to electric melting block, however, as to its different clarification, some people can't tell the difference between them. Today we will mainly distinct two kinds of electric melting blocks which are fused cast AZS block and fused cast alumina block.

1. Fused cast AZS block

Wear resistance is a mechanical wear ability to resist solid, liquid and dust. In many cases, the damage caused by the mechanical wear of the firebrick surface is often very serious. It is often the direct cause of the working surface loss of a firebrick material. Sometimes, it is more harmful than chemical erosion. For instance, the firebrick liner of superstructure of glass furnace often loss due to lack of wear; the place of air flow scour and melting flow of furnace is also easy to loss due to low wear resistance of firebrick. So, wear resistance of firebrick is an important property.

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.

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.