- Overview
- Product Description
- Third Party Test Report
- Production Process
- Detailed Photos
- Packaging & Shipping
Basic Info.
Product Description
Discover top-quality fused silica powder for precision casting from Lianyungang Chemsize. Superior service and quality guaranteed!
Grade A Fused Silica sand & powder for precision casting applications. High-quality silica powder for investment casting, epoxy molding, and more.
| 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 | |||
| 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% |
Particle Size Distribution
Discover high-quality silica powder for precision casting from Lianyungang Chemsize International Trading Co., Ltd. Perfect 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 | |
Fused Silica
Pan designates the percentage of fused silica passing the last reported screen for each size.
Special Feature:
Fused Silica features extremely low coefficient of thermal expansion, consistent chemistry, and carefully controlled particle size distribution.
Applications:
Used in industries such as thermal ceramic, refractory, investment casting, EMC, solar crucible, quartz marble, powder coating, etc.
Available Sizes:
- 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 customer's special requirement.
Company: Lianyungang Chemsize International Trading Co., Ltd.
Fused Silica Production Process
Fused silica is a high purity quartz sand that has been melted to form glass. Its high volume stability, low volumetric expansion, and high purity make fused silica a versatile material for refractory applications, such as aluminum launders.
At Lianyungang Chemsize International Trading Co., Ltd., we carefully select high purity silica sand (SiO2 > 99%) from Donghai/Xinyi as our raw material. The silica sand is melted at high temperatures (2000-2300 ºC) to form amorphous silicon dioxide glassy ingots, which are then processed into fused silica lumps, sand, and powder based on customer requirements.
Discover our Fused Silica high clear Pictures for Precision Casting. Made with high-quality silica powder, perfect for investment casting and more.
High-Quality Fused Silica Powder for Precision Casting in 25kg plastic woven bags on pallets. Ideal for investment casting and epoxy molding.
Explore our Fused Silica Factory and Quality Control Pictures showcasing our High-Quality Silica Powder for Precision Casting. Trust Lianyungang Chemsize International Trading Co., Ltd. for all your casting needs.
Fused Silica Product Description
Fused Silica Making Process
Fused Silica is produced using high purity crystal silica from China Donghai-Xinyi. It is electrically fused at temperatures ranging from 1800-2000ºC to create amorphous Silicon dioxide. The resulting material is engineered into various forms such as lumps, cullet, ingots, sand, grain, granular, and powder flour. These forms are specifically designed for manufacturing PV fused silica crucibles, thermal ceramics, refractories, EMC investment casting ceramic shells, and more.
Fused Silica Sand Appearance and Specifications:
- Must not contain any unfused parts
- Should be free of foreign materials like strings, plastic lines, carbon, wood, metal, or other contaminants
- Only conditional black dots are allowed
- Black spot diameter should not exceed 2mm
- Total black dots quantity should be less than 10 per square meter
FAQ:
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 usually use DHL, UPS, FedEx, or *** for shipping, with delivery taking 3-5 working days. Sea freight may take 7-40 days depending on the distance.
Q5. What is the process for ordering fused silica powder products?
A:
- Provide your requirements or application details
- We will quote based on your requirements or provide suggestions
- Confirm samples and pay deposit for formal order
- We will proceed with production
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 undergo strict quality control, with a defective rate of less than 0.2%. In case of any issues, we will send replacements and cover any losses.
For any inquiries, please contact Lianyungang Chemsize International Trading Co., Ltd.
