- Overview
- Product Description
- Third Party Test Report
- Production Process
- Detailed Photos
- Packaging & Shipping
Basic Info.
Product Description
Lianyungang Chemsize International Trading Co., Ltd. offers high-quality fused silica powder for precision casting applications. Trust us for top-notch service and superior quality!
Discover our Grade A Fused Silica sand & powder, ideal for precision casting applications. Trust Lianyungang Chemsize International Trading Co., Ltd. for high-quality 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 high-quality silica powder for precision casting, perfect for various applications in the foundry industry.
| 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 an extremely low coefficient of thermal expansion, consistent chemistry, and carefully controlled particle size distribution.
Applications:
Fused Silica is 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 the customer's special requirement.
Company name: Lianyungang Chemsize International Trading Co., Ltd.
Fused Silica Product Description
Fused Silica Production Process
Fused silica is high-purity quartz sand that has been melted to form glass. Its high volume stability, low volumetric expansion, and high purity make it a versatile material for refractory applications.
Raw Material Selection
We strictly choose high-purity silica sand (SiO2 > 99%) from Donghai/Xinyi as our raw material.
Manufacturing Process
The silica sand is melted at high temperatures (2000-2300 ºC) to form amorphous silicon dioxide glassy ingots, which are then cooled. The products are further processed into fused silica lumps, sand, and powder according to customer requirements.
Company Information
Company Name: Lianyungang Chemsize International Trading Co., Ltd.
Discover our High-Quality Fused Silica Powder for Precision Casting, perfect for various applications in the foundry industry.
High-Quality Fused Silica Powder for Precision Casting in 25kg plastic woven bags on pallets. Ideal for various applications in the foundry industry.
Explore our gallery showcasing the production process and quality control of our high-quality fused silica powder for precision casting at Lianyungang Chemsize International Trading Co., Ltd.
Fused Silica Product Description
Fused Silica Making Process
Fused Silica is produced from high purity crystal silica by electrically fusing it at temperatures between 1800-2000ºC. The resulting amorphous Silicon dioxide is then engineered into various forms such as lumps, cullet, ingots, sand, grain, granular, and powder flour. These forms are specifically designed for creating PV fused silica crucibles, thermal ceramics, refractories, EMC investment casting ceramic shells, and more.
Fused Silica Sand Appearance and Specifications:
- No unfused parts are allowed.
- No foreign materials like string, plastic, carbon, wood, metal, or other contaminants are permitted.
- Only conditional black dots are acceptable, with a maximum diameter of 2mm.
- Total black dots 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 welcome.
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 goods shipped and what is the delivery time?
A: We ship via DHL, UPS, FedEx, or *** with delivery in 3-5 working days. Sea shipments may take 7-40 days depending on 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 then 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 have a low defective rate (<0.2%). If any issues arise, we will replace the products and cover any losses.
For further inquiries, please contact Lianyungang Chemsize International Trading Co., Ltd.
