Forehearth Channel
The block set of the channel line that carries glass to the machine while evening out its temperature.
Service temperature
1500–1650 °C
Related sectors
About this product
The job of a forehearth is not to carry the glass but to condition it on the way: to reach the same temperature at every point of the cross-section. Channel blocks must therefore resist corrosion and the temperature gradient the burners above create. Zircon mullite blocks meet both demands at once; floor, side and cover pieces are delivered as a single set.
Material
Zircon mullite is a mullite matrix reinforced with zircon (ZrSiO₄). In contact with molten glass it shows low wettability and sound corrosion resistance while keeping the melt clean. It is the standard choice for forehearth channel blocks, spouts, feeder expendables, vitrified supports and gob delivery blocks.
Applications
- Conditioning and cooling section
- Branches after the distributor
- IS machine feed lines
Technical data
- ZrO₂ content
- 18% – 32%
- Service temperature
- 1500 – 1650 °C
- Density
- 2.8 – 3.3 g/cm³
Values are typical ranges for the material family; a batch-specific analysis certificate can be requested.
Ask for a price
Send the size, quantity and delivery point and we will confirm price and lead time the same day.
