| Customization: | Available |
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| Certification: | ISO |
| Application: | Rubber, Ceramic, Casting |
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Lianyungang Chemsize International Trading Co., Ltd. offers high-quality silica flour for investment casting industry. Trust us for superior service and top-notch products!
Grade A Fused Silica sand & powder for investment casting industry by Lianyungang Chemsize International Trading Co., Ltd. Perfect for precision casting with high purity and quality.
| 1. | Physical Properties | |||
| 1.1 | Composition | SiO2 | ||
| 1.2 | Structure | Amorphous | ||
| 1.3 | Colour | Transparent or white | ||
| 1.4 | Melting Temperature | approx.1750ºC | ||
| 1.5 | Specific Gravity | 2.21g/cm3 | ||
| 1.6 | Hardness | 7 Mohs | ||
| 1.7 | Thermal Expansion | 0.5*10-6 | ||
2. |
Chemical Properties |
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| Grade A | Grade B | Grade C | ||
| 2.1 | SiO2 | >99.9% | >99.85% | >99.7% |
| 2.2 | Al2O3 | <100ppm | <150ppm | <0.05% |
| The finer the power,the higher the Al2O3,as powder is produced by ball mill with Alumina ball. | ||||
| 2.3 | Fe2O3 | <30ppm for grain | <60ppm | <0.05% |
| 2.4 | CaO | <30ppm | <60ppm | <0.02% |
| 2.5 | Na2O | <30ppm | <60ppm | <0.02% |
| 2.6 | K2O | <30ppm | <60ppm | <0.02% |
Discover our Silica Flour for Investment Casting Industry, offering precision and high-quality silica powder for various casting applications.
| Standard | |||||||
| 10-20 | 30-50 | 50-100 | -120 | -200 | -325 | ||
| Mesh | Microns | ||||||
| +8 | 2360 | <2 | |||||
| +12 | 1700 | 6-25 | |||||
| +16 | 1180 | 33-50 | |||||
| +20 | 850 | 25-45 | <1 | ||||
| +30 | 600 | 13 | 25-40 | ||||
| +40 | 425 | 32-45 | |||||
| +50 | 300 | 15-30 | <13 | ||||
| +70 | 212 | 30-60 | |||||
| +80 | 180 | 0-11 | <1 | ||||
| +100 | 150 | 28-51 | <10 | <1 | |||
| +140 | 106 | 4-16 | 7-13 | <10 | |||
| +200 | 75 | <2 | 10-15 | <10 | <3 | ||
| +325 | 45 | 14-20 | 15-30 | 4-11 | |||
| Pan | <3 | <2 | <1 | 45-55 | 70-80 | 86-97 | |
Pan designates the percentage of fused silica passing the last reported screen for each size.
Fused Silica features an extremely low coefficient of thermal expansion, consistent chemistry, and carefully controlled particle size distribution.
Fused Silica is used in industries such as thermal ceramic, refractory, investment casting, EMC, solar crucible, quartz marble, powder coating, etc.
0-1mm, 1-3mm, 3-5mm, 0.2-0.5mm, 0.1-0.5mm, 10mesh, 10-20mesh, 30-50mesh, 50-100mesh, -100mesh, -150mesh, -270mesh, 30-60mesh, 60-120mesh, 40-70mesh, 70-140mesh, 100-200mesh, 120F, 200mesh, 325mesh, 400mesh, 600mesh, 800mesh, 1250mesh, etc.
The particle size can be produced as per the customer's special requirement.
Company Name: Lianyungang Chemsize International Trading Co., Ltd.
Discover our premium fused silica products, meticulously crafted to meet your refractory needs.
Fused silica is a high-purity quartz sand that undergoes a meticulous melting process to form glass. Its high volume stability, low volumetric expansion, and exceptional purity make it a versatile material for various refractory applications.
We source our high-purity silica sand (SiO2 > 99%) locally from Donghai/Xinyi. The silica sand is melted at temperatures ranging from 2000-2300 ºC to create an amorphous silicon dioxide glassy ingot, which is then processed into fused silica lump, sand, and powder based on customer specifications.
Choose Lianyungang Chemsize International Trading Co., Ltd. for top-quality fused silica products that exceed industry standards.
Discover our high-quality Silica Flour for Investment Casting Industry, perfect for precision casting and refractory applications.
25kg net Fused Silica Plastic Woven Bag, palletized for delivery. Ideal for investment casting applications.
Explore images of our fused silica production facility and quality control processes at Lianyungang Chemsize International Trading Co., Ltd.
Product Name: Silica Flour for Investment Casting Industry
Fused Silica is produced from high purity crystal silica sourced from China Donghai-Xinyi. It is electrically fused at temperatures ranging from 1800-2000ºC to create amorphous Silicon dioxide. The material is then specially engineered into various forms such as lumps, cullet, ingots, sand, grain, granular, and powder flour. These forms are ideal for manufacturing PV fused silica crucibles, thermal ceramics, refractories, EMC investment casting ceramic shells, and more.
Q1. Can I request a sample order for fused silica products?
A: Yes, we offer free samples shipped via ***/FEDEX/DHL. Mixed samples are also acceptable.
Q2. What is the lead time for samples?
A: Samples are typically sent within 3-5 days.
Q3. Is there a minimum order quantity for fused silica sand?
A: No, but lower quantities may result in higher average costs.
Q4. How are the goods shipped and what is the delivery time?
A: We ship via DHL, UPS, FedEx, or *** with an average delivery time of 3-5 working days. By sea, it can take 7-40 days depending on the distance.
Q5. What is the process for ordering fused silica powder products?
A:
1) Share your requirements or application
2) Receive a quote based on your needs
3) Confirm samples and pay a deposit for the formal order
4) Production will be arranged
Q6. Can my logo be printed on the packages?
A: Yes, please inform us before production and confirm the design based on our sample.
Q7. How are faulty products handled?
A: Our products have a low defective rate (<0.2%). If any issues arise, we will send replacements and cover any losses.
For further inquiries, please contact Lianyungang Chemsize International Trading Co., Ltd.
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