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Spout Bricks Of Float Glass Furnaces
- More related products
- Fused Cast AZS Block
- Fused Cast Alumina Block
- Fused Cast High Zirconia Block
- Fused Cast Skid Rail Block
Float glass is made by floating molten glass on a bath of molten tin on which the molten glass flows unhindered under the influence of gravity. Tin bath is the key forming machine for float glass. The spout is the groove refractory brick that partially extends into the tin bath.
There are two types of spout structures: stretch type and hook type. The former has simple structure and good durability, but the drop is big and the tin bath is subjected to big impact. The latter is complex and difficult to from, but the drop is small and it is not easy to form glass defects and the molten glass is easy to spread flat in the bath and maintains a constant thickness.
The spout consists of a lip brick and two sidewall bricks. The spout bricks are subjected to high temperature and solid-liquid-gas corrosion. The quality of the spout bricks has great impact on the forming quality of glass. They are required to withstand high temperature, wear, corrosion and thermal shock. α-β fused cast alumina block is used here because its strong resistance to glass corrosion and less pollution to glass quality.
During use, due to the erosion and wear of the molten glass, the spout may cause glass defects. If there are serious damages or cracks, the lip bricks should be changed in time.
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