Ceramsite Foundry Sand is a premium material designed for various casting applications. With a chemical composition of Al2O3≥70%, Fe2O3≤3%, and SiO2≤24%, it delivers superior performance and efficiency in metal casting processes. This advanced foundry sand is characterized by its nearly spherical grain shape, high thermal resistance, and excellent fluidity. It is an ideal choice for those looking to achieve precision and quality in their castings.
The unique properties of Ceramsite Foundry Sand make it highly suitable for use in lost foam casting, sodium silicate sand applications, and various casting coatings. Its ability to minimize thermal expansion defects enhances the dimensional accuracy of castings, while its smooth surface allows for efficient binder application, significantly reducing material costs.
Technical Parameters
–Chemical Composition:
- Al2O3 ≥ 70%
- Fe2O3 ≤ 3%
- SiO2 ≤ 24%
- Other: Trace
–Physical Properties:
- Grain Shape: Spherical
- Angular Coefficient: < 1.1
- Packing Density: 1.9 – 2.1 g/cm³
- pH Value: 7 – 8
- Thermal Conductivity: 0.5 – 0.6 (W/m*K) (1000ºC)
- Thermal Expansion Rate: 0.13% (1000ºC heating for 10 minutes)
- Fire Resistance: > 1790ºC
- Acid Consumption Value: ≤ 3.0 ml
Product Uses：
1. Lost Foam Casting
2. Sodium Silicate Sand Applications
3. Casting Coatings
4. Drainage Sand
5. Alloy Surface Treatment
6. Phenolic Resin Coated Sand
7. Hot-Core Box Resin Sand
8. Blow Hardening Cold Core Box Resin Sand
