Fused silica thimble for aluminium billet casting tables
Thimble refractories provide controlled, stable molten-metal flow into the moulds of aluminium billet casting tables. Low thermal conductivity and high thermal shock resistance support reliable operation during rapid temperature changes at casting start-up. Their smooth, non-wetting surface reduces metal adhesion and simplifies cleaning and maintenance. High mechanical strength supports a long service life.
| Property | Values |
|---|---|
| Thermal conductivity | 200 °C1.16 W/m·K600 °C1.39 W/m·K800 °C1.55 W/m·K |
| Cold breaking strength | 500 °C60–80 MPa800 °C70–90 MPa1000 °C70–80 MPa |
The data listed are average values, determined according to standard methods. They are purely informative and not to be regarded as a specification.




