Introduction of Ceramsite(foundry sand)for Metal Foundry
Ceramsite(foundry sand) can be widely applied to the production of medium and small castings of cast iron casting carbon steel casting medium and low alloy steel stainless steel and nonferrous alloys.
The dimensional accuracy of the casting can reach to class CT6-CT7 and surface roughness can reach Ra12.5m by using the shell casting technology of Ceramsite(foundry sand), which greatly improves the quality of the casting.
Technical Parameter
1. Main Chemical Element:Al2O3≥75% , Fe2O3≤3%, TiO2≤2.5%, SiO2 ≤17%, other element: Trace amounts;
2. Grain shape: Spherical;
3. Angle Factor: ≤ 1.1, very close to ball shape;
4. Bulk Density: 1.95-2.05 (g/cm3);
5. Refractoriness: ≥1800℃;
6. Thermal Conductivity: 5.27W/M·K(1200℃);
7. Shock Expansion Rate: 0.13% (10 minutes at 1000℃)
8. Particle Size: 0.053mm-2.0mm
Product Data Sheet
Size |
Mesh |
10 |
14 |
18 |
26 |
36 |
50 |
70 |
100 |
140 |
200 |
281 |
Pan |
AFS |
μm |
1700 |
1180 |
850 |
600 |
425 |
300 |
212 |
150 |
106 |
75 |
53 |
Pan |
||
AFS20 |
≤5 |
10-30 |
30-50 |
15-35 |
≤5 |
|||||||||
AFS30 |
≤5 |
10-30 |
30-50 |
15-35 |
≤10 |
≤5 |
25-35 |
|||||||
AFS40 |
≤5 |
0-20 |
20-40 |
20-40 |
10-30 |
≤10 |
≤2 |
35-45 |
||||||
AFS50 |
≤3 |
≤15 |
25-40 |
25-45 |
10-20 |
≤10 |
≤5 |
≤3 |
45-55 |
|||||
AFS60 |
≤10 |
10-30 |
30-50 |
15-35 |
0-20 |
≤5 |
≤1 |
55-65 |
||||||
AFS75 |
≤10 |
5-25 |
25-45 |
20-40 |
≤10 |
≤5 |
75-85 |
|||||||
AFS100 |
≤3 |
10-30 |
35-55 |
15-35 |
≤10 |
≤2 |
105-115 |
|||||||
AFS125 |
≤2 |
0-20 |
30-50 |
25-45 |
0-20 |
≤5 |
125-135 |
|||||||
AFS150 |
≤5 |
5-25 |
40-60 |
25-40 |
≤15 |
160-170 |
The advantages of Ceramsite(foundry sand)for Metal Foundry
1. The thermal expansion coefficient is small, and its performance is comparable to zircon sand. When the sand is prepared with zircon sand, the casting will not produce expansion defects.
2. The surface is smooth and the structure is compact, so that the binder can cover evenly.
3. Good recycling performance and high cost performance
4. High thermal conductivity, good stability, no cracking
Logistics system
Top Chemical cooperates with the world-famous logistics company and has established a sound logistics system, which covers container, bulk-cargo, sea and road transportation. Besides, we have set up branch companies and storage centers in North America, South America and Mid East. Professional sales staff and efficient logistics team provide 24/7 service and ensure that the company's products are sent to the customer's location.
Certificates
FAQ
Q1: How do you ensure the quality of the product?
A: Top Chemical have a very complete quality management system, from the control of raw materials to the factory inspection of finished products. We regularly provide samples to third-party testing organizations for testing.
Q2: How long is your delivery time?
A: We have 8 fully automatic production lines and can guarantee around it’ll use 15 days from the customer's order to delivery.
Q3: What are the advantages of ceramsite(foundry sand)?
A: The thermal expansion coefficient is small, and its performance is comparable to zircon sand. When the sand is prepared with zircon sand, the casting will not produce expansion defects.
Q4: What are the advantages of ceramsite(foundry sand)?
A: High fire resistance, easy to collapse. The mullite phase of ceramsite(foundry sand) is much higher than that of sintered product.
Q5: What are the advantages of ceramsite(foundry sand)?
A: High thermal conductivity, good stability, no cracking
Q6: Why you should choose ceramsite(foundry sand)?
A: The thermal expansion coefficient is small, and its performance is comparable to zircon sand. When the sand is prepared with zircon sand, the casting will not produce expansion defects.
Q7: What the ceramsite(foundry sand) become more and more popular?
A: High fire resistance, easy to collapse. The mullite phase of ceramsite(foundry sand) is much higher than that of sintered product.
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