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Why top foundries are abandoning steel riser tubes? Discover the revolutionary advantages of aluminum titanate ceramics in low-pressure and counter-pressure casting processes.
The Challenge with Steel Riser Tubes
Traditional steel riser tubes face persistent issues including deformation at high temperatures, cracking under rapid thermal cycling, and short service life due to molten aluminum erosion. These limitations create significant obstacles for continuous casting operations.
Aluminum Titanate Riser Tubes: Engineered for Demanding Conditions
With its unique crystal structure, aluminum titanate ceramic material provides an ideal, cost-effective solution for modern foundry requirements.
Key Performance Advantages
Exceptional Thermal Shock Resistance: Extremely low thermal expansion coefficient prevents cracking during repeated insertion and withdrawal between room temperature and 750°C molten aluminum
Complete Non-Wetting: Aluminum titanate is completely non-wetting to molten aluminum, preventing slag accumulation and ensuring metal purity
Extended Service Life: Low apparent porosity and stable chemical properties significantly reduce spare parts replacement costs
Technical Specifications
Item
Result
Unit
Density
>3.4
g/cm³
Apparent porosity
<7
%
Flexural strength
25 - 35
MPa
Thermal expansion coefficient
0.5 - 1.5
*10⁻⁶/°C
Thermal conductivity
0.86 - 1.00
W/(m*k)
Max. Working temperature
<1500
°C
If you are seeking a solution that ensures continuous casting, enhances molten aluminum quality, and reduces long-term operational costs, the aluminum titanate ceramic riser tube is your optimal choice. It is not just a spare part; it's a core component for enhancing the stability of your casting process.
