- Description
Ceramisite, also known as fused ceramic sand, Foundry sand, etc., , is a spherical sand made of bauxite by melting, blowing to balls and sieving. It has the characteristics of good sphericity, high refractoriness, good collapsibility, low thermal expansion and high recycling rate. It is widely used in various casting processes and is currently recognized as the most ideal new environmentally friendly foundry sand.
- Specification
Chemical Index
| Index | Al2O3 | SiO2 | Fe2O3 | TiO2 | K2O+Na2O | CaO+MgO | L.O.I |
| Content | 75% Min. | 18% Max. | 3% Max. | 3.5% Max. | 1% Max. | 1% Max. | 0.3% Max. |
Technical Index
| Index | Refractories | Bulk Density | True density | Angle coefficient |
| Content | 1800 ℃ | 1.65-1.95g/cm3 | 3.3g/cm3 | 1.1 Max. |
| Index | PH Value | Moisture | Mud Content | Thermal expansion rate |
| Content | 7-8 | 0.1% Max. | 0.1% Max. | 0.13% |
Ceramsite Section Sand Size Distribution
| Spec | 2000 | 1400 | 850 | 600 | 425 | 300 | 212 | 150 | 106 | 75 | 53 | Pan | AFS |
| 10 | 14 | 20 | 30 | 40 | 50 | 70 | 100 | 140 | 200 | 270 | |||
| 14/20 | ≤ 10 | 40-60 | 40-60 | ≤ 10 | 10±3 | ||||||||
| 20/30 | ≤ 10 | 40-60 | 40-60 | ≤ 10 | 15±3 | ||||||||
| 20/40 | ≤ 10 | 25-35 | 30-40 | 25-35 | ≤ 10 | ≤ 3 | 20±3 | ||||||
| 20/50 | ≤ 5 | 20-30 | 25-35 | 20-30 | 10-20 | ≤ 10 | ≤ 5 | 25±3 | |||||
| 30/50 | ≤ 10 | 20-30 | 35-45 | 20-30 | ≤ 10 | ≤ 3 | ≤ 2 | 30±3 | |||||
| 40/50 | ≤ 10 | 40-60 | 30-50 | ≤ 10 | ≤ 3 | ≤ 2 | 35±3 | ||||||
| 40/70 | ≤ 10 | 25-35 | 35-45 | 15-25 | ≤ 5 | ≤ 2 | ≤ 1 | 40±3 | |||||
| ≤ 5 | 20-30 | 30-40 | 30-40 | ≤ 10 | ≤ 3 | ≤ 2 | 45±3 | ||||||
| 50/100 | ≤ 1 | ≤ 15 | 30-40 | 20-30 | 15-25 | ≤ 10 | ≤ 2 | ≤ 1 | 50±3 | ||||
| ≤ 10 | 25-35 | 25-35 | 20-30 | ≤ 10 | ≤ 2 | ≤ 1 | 55±3 | ||||||
| 50/140 | ≤ 5 | 25-35 | 20-30 | 15-25 | 10-20 | ≤10 | ≤ 2 | ≤ 1 | 60±3 | ||||
| ≤ 5 | 25-35 | 25-35 | 15-25 | 10-20 | ≤10 | ≤ 5 | ≤ 2 | 65±3 | |||||
| ≤ 2 | 15-25 | 15-25 | 25-35 | 20-30 | ≤10 | ≤ 2 | ≤ 1 | 70±3 | |||||
| ≤ 2 | 15-25 | 15-25 | 15-25 | 30-40 | ≤10 | ≤ 2 | ≤ 1 | 75±3 | |||||
| 70/140 | ≤ 15 | 20-30 | 25-35 | 20-30 | ≤15 | ≤ 3 | ≤ 2 | 80±3 | |||||
| ≤ 15 | 15-25 | 20-30 | 30-40 | ≤15 | ≤ 3 | ≤ 2 | 85±3 | ||||||
| 70/200 | ≤ 2 | 15-25 | 15-25 | 25-35 | 20-30 | ≤10 | ≤ 2 | 100±3 | |||||
| ≤ 2 | 15-25 | 15-25 | 15-25 | 30-40 | ≤10 | ≤ 2 | 105±3 | ||||||
| 100/200 | ≤ 15 | 20-30 | 25-35 | 20-30 | ≤15 | ≤ 5 | 110±3 | ||||||
| ≤ 15 | 15-25 | 20-30 | 30-40 | ≤15 | ≤ 5 | 120±3 | |||||||
| 140/270 | ≤ 15 | 20-30 | 35-45 | 20-30 | ≤15 | 155±3 | |||||||
| 200/270 | ≤ 10 | 40-60 | 30-50 | ≤20 | 180±3 | ||||||||
| ≤ 10 | 40-60 | 20-30 | ≤25 | 190±3 |
- Features
- Dense spherical shape, smooth surface and good fluidity.
- Good collapsibility and easy sand cleaning.
- High refractoriness, can meet the requirements of various metals and alloy casting.
- Good crush resistance and high recycling rate.
- Low thermal expansion coefficient, reduce casting defects and improve dimensional accuracy.
Application
- Precoated sand
- Resin core sand
- Lost Foam Casting
- Investment casting
- Casting paint
- Drainage sand