- Overview
- Product Description
- Third Party Test Report
- Production Process
- Detailed Photos
- Packaging & Shipping
Basic Info.
Product Description
Lianyungang Chemsize International Trading Co., Ltd. is a leading supplier of fused silica sand and powder, offering top-quality products and exceptional service. Choose us for all your silica material needs!
Grade A Fused Silica sand & powder for precision casting and investment casting applications. Supplier of high-quality silica materials.
| 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
Explore our range of precision silica powders for epoxy molding compounds. We are your trusted supplier for fused silica, quartz, and refractory materials.
| 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 Product Description
Fused Silica
Pan designates the percentage of fused silica passing the last reported screen for each size.
Special Features:
- Extremely low coefficient of thermal expansion
- Consistent chemistry
- Carefully controlled particle size distribution
Applications:
- Thermal ceramic industry
- Refractory industry
- Investment casting
- EMC industry
- Solar crucible manufacturing
- Quartz marble production
- Powder coating applications
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
- Custom sizes available upon request
Particle size can be produced according to customer's special requirements.
For more information, contact 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 in aluminum launders or other highly cyclical applications.
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 an amorphous silicon dioxide glassy ingot, which is then processed into fused silica lump, sand, and powder based on customer requirements.
Fused Silica high clear pictures for precision casting and investment casting. Supplier of silica powder for epoxy molding compound.
Fused Silica Supplier offering 25kg plastic woven bags on pallets for easy delivery. Ideal for various applications like investment casting and precision casting.
Lianyungang Chemsize International Trading Co., Ltd. is a leading supplier of fused silica, offering high-quality silica powder for epoxy molding compounds and investment casting. Trust us for precision casting and refractory materials.
Fused Silica Product Description
Fused Silica Making Process
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 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 such as 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 ship via DHL, UPS, FedEx, or *** with an average delivery time of 3-5 working days. Sea shipments 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 needs or offer suggestions
- Confirm samples and pay a deposit for the 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 replace the products and cover any losses.
For any further inquiries, please contact us at Lianyungang Chemsize International Trading Co., Ltd.
