High Fusion Ratio Fused Silica for Investment Casting Refractory

• Certification: ISO
• Application: Rubber, Ceramic, Casting
• Fused Silica Sand: 0-1mm,1-3mm,3-5mm,4-10mesh,10-20,20-50,50-100mesh
• Fused Silica Powder: -100,-120f,-150L,200f,270f,325mesh
• Fe2o3: <0.003%
• Al2O3: <0.03%
• Model NO.: 10-20mesh, 20-50, 30-50, 50-100, 200mesh 325mesh
• Amorphous Sio2: >99%
• Quartz Sio2: <0.1%
• Cristobalite Sio2: <0.1%
• Transport Package: Paper Bag, Plastic Bag, Jumbo Bag, Pallet
• Specification: SiO2>99.9%
• Trademark: Chemsize
• Origin: China Lianyungang
• HS Code: 32074000
• Production Capacity: 10000mt/Year

Product Description

Lianyungang Chemsize International Trading Co., Ltd. offers high fusion ratio fused silica for investment casting refractory applications. Top-quality fused silica manufacturer with a focus on service excellence.

Product Description

Grade A Fused Silica sand & powder for Investment Casting Refractory applications. High Fusion Ratio, Low Iron content, ideal for various casting needs.

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/cm^3
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%

Discover High Fusion Ratio Fused Silica for Investment Casting Refractory by Lianyungang Chemsize. Ideal for resin fillers, EMC fillers, powder coating, and more.

		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 industry


• EMC industry


• Solar crucible industry


• Quartz marble industry


• Powder coating industry

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

Contact Lianyungang Chemsize International Trading Co., Ltd. for more information.

Third Party Test Report

Production Process

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 source high purity silica sand (SiO2 > 99%) from Donghai/Xinyi for our production process.

Manufacturing Process

The silica sand is melted at high temperatures (2000-2300 ºC) to form amorphous silicon dioxide glassy ingots, which are then cooled. We further process the ingots into fused silica lumps, sand, and powder based on customer requirements.

Company Information

Company Name: Lianyungang Chemsize International Trading Co., Ltd.

Detailed Photos

Discover our High Fusion Ratio Fused Silica for Investment Casting Refractory, perfect for various applications like ceramic welding, induction furnace lining, and more.

Packaging & Shipping

High Fusion Ratio Fused Silica for Investment Casting Refractory in 25kg plastic woven bags on pallets. Ideal for various applications.

Explore our High Fusion Ratio Fused Silica for Investment Casting Refractory. We are your trusted supplier for top-quality fused silica products.

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 like string, plastic, carbon, wood, metal, or other contaminants.


• Only conditional black dots are allowed; other color dots are prohibited.


• Black spot diameter should not exceed 2mm.


• Total black dots quantity should be less than 10 per square meter when opening the big bag.

For any inquiries, please contact Lianyungang Chemsize International Trading Co., Ltd.

Chemsize Fused Silica Products

Chemsize, a leading manufacturer of Fused Silica grains and powders, offers high-quality materials for various industries. Our Fused Silica has a fusion ratio of up to 99.9% Amorphous SiO2, low iron content (max 30ppm), and minimal impurities, resulting in low thermal expansion, high thermal shock resistance, and low electrical conductivity. Our unique production process ensures precise blending, grinding, and sizing, guaranteeing the most suitable materials for our customers.

Our proprietary electric-arc fusion technique produces Fused Silica with over 99.9% SiO2 purity, low thermal expansion, excellent thermal shock resistance, and ISO-certified standards. Chemsize Fused Silica is chemically stable, inert, and has extremely low conductivity, making it ideal for various applications.

Applications of Chemsize Fused Silica include crucibles for solar cell production, rollers, castables, mortars, and forming tools in the glass industry, technical ceramics, ceramic slurries for investment casting, and more. Our products are tailored for foundry, refractory, investment casting, and specialized applications.

Whether you need Fused Silica for resin fillers, EMC fillers, powder coating, or refractory applications, Chemsize offers a range of products like ramming mixes, precast shapes, big blocks, and more. Our materials are designed for high-temperature performance, tight tolerance castings, and easy shell removal in investment casting.

Choose Chemsize Fused Silica for superior quality, consistent chemistry, and precise particle size distribution. Contact us today for customized bulk bag shipments to meet your specific needs.

Chemsize Fused Silica

Welcome to Chemsize Fused Silica

Introducing Chemsize Fused Silica, a leading supplier of raw materials and machines for investment casting for over 30 years.

Advantages of Fused Silica:

1. Particle shape: Superior particle shape for primary slurry.


2. Decreased material consumption: Lower density reduces material usage.


3. Increased permeability and porosity: Enhances shell quality.


4. Easier knock-out: Simplifies shell removal process.


5. Faster leaching and shell removal: Facilitates material removal.


6. Consistency and sustainability: Highly consistent and reliable sourcing.


7. Cost-effective: Competitive pricing at US$0.56/kg FOB LIANYUNGANG PORT.

Induction Furnace Lining Ramming Material Summary:

The intermediate frequency furnace ramming material is essential for various applications in induction furnaces.

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 provide free samples by ***/FEDEX/DHL.

Q2. What about the lead time?
A: Samples can be sent within 3-5 days. Orders typically delivered within 15 days for quantities up to 100mt.

Q3. Do you have any MOQ limit for fused silica sand order?
A: No, but lower quantities may incur higher average costs.

Q4. How do you ship the goods and how long does it take to arrive?
A: Shipping methods vary, and delivery times depend on the destination.

For more information, contact Lianyungang Chemsize International Trading Co., Ltd.