- 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 sand and powder for investment casting. Experience the best service and quality with us!
Grade A Fused Silica Sand & Powder Specifications:
Explore the price comparison for investment casting with our high-quality silica materials. Perfect for refractory applications and jewelry crucibles.
| 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% |
Compare prices for investment casting silica sand with Lianyungang Chemsize International Trading Co., Ltd. Choose high-quality fused silica or quartz sand for your casting needs.
| 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
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 ceramics, refractories, investment casting, EMC, solar crucibles, quartz marbles, powder coating, etc.
Fused Silica Available Sizes:
0-1mm, 1-3mm, 3-5mm, 0.2-0.5mm, 0.1-0.5mm, 0.212-0.425mm, 0.125-0.212mm, -0.044mm, -0.045mm, 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 requirements.
Company Name: Lianyungang Chemsize International Trading Co., Ltd.
Fused Silica Production Process
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 fused silica a versatile material for refractory applications.
Raw Material
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 ingot, which is then cooled. We further process the ingot into fused silica lump, sand, and powder according to customer requirements.
Company Information
Company Name: Lianyungang Chemsize International Trading Co., Ltd.
Fused Silica High Clear Pictures
Explore our Fused Silica products for investment casting. Compare prices for high purity silica sand, quartz sand, and amorphous silicon dioxide. Ideal for refractory materials and crucibles.
Fused Silica Plastic Woven Bag of 25kg Net each, Then on Pallet for convenient packaging and delivery.
Fused Silica Factory and Quality Control Pictures
Explore images showcasing the production process and quality control measures at Lianyungang Chemsize International Trading Co., Ltd. for investment casting silica sand. Compare prices and ensure high purity for your refractory materials.
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 material is then 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 not have any foreign materials like string, plastic, 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
For any inquiries, please contact Lianyungang Chemsize International Trading Co., Ltd.
Chemsize Fused Silica
Welcome to Chemsize Fused Silica
Chemsize is a leading manufacturer of Fused Silica, offering high-quality grains and powders for various industries such as Refractory, Investment Casting, Technical Ceramic, and EMC fillers.
Key Features:
- Amorphous SiO2 content up to 99.9% min
- Low iron (30ppm max) and low impurities
- Low coefficient of thermal expansion
- High resistance to thermal shock
- Extremely low electrical conductivity
Production Process:
Our Fused Silica is manufactured using a proprietary electric-arc fusion technique, resulting in pure silica with over 99.9% SiO2 content. It meets ISO-certified standards and offers excellent chemical stability and low conductivity.
Applications:
Chemsize Fused Silica is used in various industries, including foundry, refractory, investment casting, and more. It is ideal for applications requiring thermal insulation, low thermal conductivity, and thermal shock resistance.
Product Range:
We offer a wide range of Fused Silica products, including crucibles, rollers, castables, mortars, and more. Our products are tailored to meet specific industry needs and applications.
Packaging:
Standard packaging includes 25kg bags, 48 bags per pallet, or jumbo bags with a net weight of 1200kgs. Customized packaging options are available for bulk orders.
Investment Casting Grade:
Our Fused Silica is specially formulated for investment casting applications, providing volume stability and tight tolerance castings. It is widely used in automotive, aerospace, medical, and other industries.
Contact us at Lianyungang Chemsize International Trading Co., Ltd. for more information.
Introducing Chemsize Fused Silica
Chemsize Fused Silica is a leading supplier of raw materials and machinery for investment casting, with over 30 years of experience in the industry.
Advantages of Fused Silica Flour:
- Better particle shape for primary slurry
- Decreased material consumption due to lower density
- Increased permeability and porosity for improved shell quality
- Easier knock-out and shell removal process
- Consistent quality and sustainable sourcing
- Competitive pricing at US$0.56/kg FOB LIANYUNGANG PORT
Application Areas:
Widely used in coreless medium frequency furnaces and core induction furnaces for melting various metals and alloys.
FAQ:
Q1. Can I have a sample order for fused silica products?
A: Yes, we offer free samples shipped by ***/FEDEX/DHL.
Q2. What is the lead time?
A: Samples can be sent within 3-5 days. Orders under 100mt are typically delivered within 15 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: Shipping methods vary, and delivery times depend on the location.
