Features:
High-purity casting powder has the characteristics of high bulk density, low porosity, good volume stability and thermal shock resistance. It can replace zircon sand and powder, which is suitable for investment casting shell materials, and has excellent shell thermal stability and high temperature chemical stability. It is used for mold, core surface sand and coating of large steel castings, especially alloy castings. At the same time, it can also be used as semi-fine grinding and fine grinding abrasives for hardened steel and alloy steel.
1. Shell materials for precision investment casting · Used in investment casting to prepare ceramic shells, especially as face coat powder to improve surface finish and dimensional accuracy of castings. · Suitable for casting stainless steel, carbon steel, and high-temperature alloys.
2. Replacement for zircon powder in high-performance castings · Due to its high purity, low impurity content, and excellent thermal stability, it can partially or fully replace expensive zircon powder. · Ideal for demanding applications in the aerospace, military, medical, and automotive industries.
3. Enhances shell thermal stability and crack resistance · Maintains shell structure at high temperatures, reducing casting defects such as cracks and deformation.
4. Shell material for large steel and alloy castings · Especially suitable for large-size castings that require high density and high refractoriness.
5. Environmentally friendly and safe alternative · Free of radioactive elements, environmentally compliant, and meets regulations in regions such as Europe and the United States.
Chemical Composition of Casting Powder
| Chemical composition | Na₂O % ≤ | Al₂O₃ % ≥ | SiO₂ % ≤ | Fe₂O₃ % ≤ |
| Guarantee value | 0.4 | 99 | 0.1 | 0.1 |
| Typical value | 0.35 | 99.4 | 0.05 | 0.03 |
It is mainly used for shell making in precision investment casting, particularly for casting stainless steel, carbon steel, and heat-resistant alloys.
Yes. It offers high thermal stability, low impurity levels, and reliable performance, making it a cost-effective alternative to zircon materials in many applications.
It enhances shell strength, improves surface finish, reduces thermal expansion, and minimizes the risk of shell cracking and casting defects.
Various grades are available and custom specifications tailored to customer needs.
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