- 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 Quartz Powder for Refractory Applications. Ideal for various industrial uses.
High-quality Fused Quartz Powder for Refractory Applications. Ideal for investment casting, precision casting, and high-temperature refractory 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
Discover our Fused Quartz Powder for Refractory Applications, ideal for various industrial needs like investment casting and precision casting 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
Pan designates the percentage of fused silica passing the last reported screen for each size.
Fused Silica Special Feature:
Fused Silica features an extremely low coefficient of thermal expansion, consistent chemistry, and carefully controlled particle size distribution.
Fused Silica Applications:
Fused Silica is used in industries such as thermal ceramic, refractory, investment casting, EMC, solar crucible, quartz marble, powder coating, etc.
Fused Silica 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 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 Quartz Powder for Refractory Applications, ideal for various industrial uses like investment casting, precision casting, and high-temperature refractory materials.
Fused Silica Powder for Refractory Applications in 25kg plastic woven bags on pallets. Ideal for investment casting and high-temperature refractory materials.
Explore our Fused Quartz Powder for Refractory Applications, ideal for various industrial uses. Discover high-quality silica powder for precision casting and investment casting 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:
- No unfused parts are allowed.
- Foreign materials like string, plastic, carbon, wood, metal, or other contaminants are strictly prohibited.
- Except for conditional black dots, all color dots are forbidden.
- Black spot diameter should not exceed 2mm.
- Total black dots quantity should be less than 10 per square meter when opening the big bag.
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 delivery times 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?
- 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 arrange 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 send replacements and cover any losses.
For further inquiries, please contact Lianyungang Chemsize International Trading Co., Ltd.
