Thermal Expansion Control Fused Silica Powder

• Customization: Available
• Certification: ISO
• Application: Rubber, Ceramic, Casting
• Model NO.: 0-1mm,1-3mm,3-5mm,5-8mm, 200mesh,325mesh,400mesh
• Fused Silica Powder: -100,-120f,-150L,200f,270f,325mesh
• Fe2o3: <0.003%
• Al2O3: <0.03%
• 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 offers top-quality Thermal Expansion Control Fused Silica Powder for superior service and quality. Choose us for excellence!

Product Description

Grade A Fused Silica sand & powder for thermal expansion control. Ideal for various applications. Contact Lianyungang Chemsize International Trading Co., Ltd. for details.

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%

Particle Size Distribution

Explore our Thermal Expansion Control Fused Silica Powder for precise control over thermal expansion in various applications. Choose from a range of silica control options to meet your specific 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 Products

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.

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 according to the customer's special requirements.

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

Third Party Test Report

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.

Our company, Lianyungang Chemsize International Trading Co., Ltd., strictly selects 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 ingot, which is then processed into fused silica lump, sand, and powder according to customer requirements.

Detailed Photos

Discover our Thermal Expansion Control Fused Silica Powder for high clarity images. Perfect for managing thermal expansion in various applications.

Packaging & Shipping

Fused Silica Powder in 25kg plastic woven bags, palletized for delivery. Ideal for thermal expansion control in various applications.

Lianyungang Chemsize International Trading Co., Ltd. offers Thermal Expansion Control Fused Silica Powder for precise quality control in various applications.

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 material is then specially processed into lumps, cullet, ingots, sand, grain, granular, and powder flour forms. These 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 such as string, plastic, carbon, wood, metal, or other contaminants.


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


• Black spot diameter must not exceed 2mm.


• Total quantity of black dots should be less than 10 per big bag or less than 10 dots per square meter.

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

Chemsize Fused Silica

Welcome to Chemsize Fused Silica

Chemsize, a leading manufacturer of Fused Silica, offers high-quality materials for various industries such as Refractory, Investment Casting, Technical Ceramic, and EMC filler.

Key Features:

• Amorphous SiO2 up to 99.9% min


• Low iron content (30ppm max)


• Low thermal expansion coefficient


• High resistance to thermal shock


• Extremely low electrical conductivity

Production Process:

Our unique electric-arc fusion technique ensures the purity of our Fused Silica, exceeding 99.9% SiO2. The materials are amorphous, chemically stable, and meet ISO-certified standards.

Applications:

Our Fused Silica is used in various applications including foundry, refractory, investment casting, and more. It is ideal for producing solar cells, glass industry tools, technical ceramics, and ceramic slurry.

Product Range:

We offer a wide range of Fused Silica products such as crucibles, castables, mortars, ramming mixes, and more tailored to specific industry needs.

Packaging Options:

Standard packaging includes 25kg bags, 48 bags per pallet, or jumbags with a net weight of 1200kgs. Customized bulk bag sizes are available upon request.

Investment Casting Grade:

Our Fused Silica is perfect for investment casting applications in automotive, aerospace, medical, and other industries requiring precision and quality.

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 the investment casting process, with over 30 years of experience. Our Fused Silica flour offers numerous advantages over traditional Zircon Flour:

• Better particle shape for improved primary slurry


• Reduced material consumption due to lower density


• Increased permeability and porosity for better shell quality


• Easier knock-out and shell removal process


• Consistent quality and sustainable sourcing from China


• Competitive pricing at US$0.56/kg FOB LIANYUNGANG PORT

Application Areas:

Our Fused Silica is ideal for use in induction furnace lining ramming material, offering high purity and reliable performance. It is widely used in various applications, including melting grey cast iron, alloy steel, stainless steel, aluminum, copper alloys, and more.

FAQ:

Q1: Can I request a sample order for fused silica products?

A: Yes, we provide free samples via ***/FEDEX/DHL, with mixed samples accepted.

Q2: What is the lead time for samples and bulk orders?

A: Samples can be sent within 3-5 days, while bulk orders typically ship within 15 days for quantities up to 100mt.

Q3: Is there a minimum order quantity for fused silica sand?

A: No, there is no MOQ, but lower quantities may result in higher average costs.

Q4: How are the goods shipped and what is the estimated delivery time?

A: Goods are shipped promptly, with delivery times varying based on location and shipping method.

Experience the superior quality and cost-effectiveness of Chemsize Fused Silica for your investment casting needs.