Qingdao Jinjunxuan International Trade Co., Ltd.
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High-alumina Low Thermal Expansion Coefficient Foundry Sand for Precision Investment Casting (16-30,30-60,200,325 Mesh)
1. Production Introduction and Application
The mullite has high aluminum content, low iron content, small dust, reasonable particle size distribution, high bulk density, high temperature strength and low residual strength.
Available:10~16 mesh,16~30 mesh,30~60 mesh,60M,70 mesh,100 mesh,200 mesh,325 mesh.other sizes can be customized.
Mainly used in the aluminum smelting industry, refractory materials, precision casting , aluminum silicate refractory fiber and ceramic industry.
2. Specification
| The Physical and chemical indicators | ||||||
| Grade | Fe2O3% max | AL203% min | SiO2% min | TiO2% max | B.Dg/ccm min | Refractoriness ℃ |
| A Prime Grade | 1.20 | 46.00 | 50.50 | 0.70 | 2.55 | 1750 |
| High Grade | 1.50 | 44.00 | 51.50 | 0.90 | 2.53 | 1750 |
| Normal Grade | 2.30 | 43.00 | 52.50 | 1.00 | 2.50 | 1730 |
| 200 mesh | ||||||
| 200 mesh | 90% min | |||||
| 22S (16---30 mesh) | ||||||
| 16-12 mesh | 1.18-1.70mm | 25-35% | ||||
| 20-16 mesh | 0.85-1.18mm | 40-50% | ||||
| 30-20 mesh | 0.60-0.85mm | <25% | ||||
| 50-30 mesh | 0.30-0.60mm | 0.02% | ||||
| —50 mesh | 0.00-0.30mm | 0.04-0.06% | ||||
| 35S (30-60 mesh) | ||||||
| 50-30 mesh | 0.30-0.60mm | 65-75% | ||||
| 80-50 mesh | 0.18-0.30mm | 1.00% | ||||
| —80 mesh | 0.00-0.18mm | 0.04-0.06% | ||||
3. Products display
16-30mesh(left to right :Grade I-III)
30-60MESH
200MESH
Finished product display
4. the process of making shell
5. Our package