Fused Silica Powder with 1.3W/M*K Thermal Conductivity

• 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.: 325mesh 400mesh 600mesh 800mesh 1250mesh 2000mesh
• Amorphous Sio2: >99%
• Quartz Sio2: <0.1%
• Cristobalite Sio2: <0.1%
• Thermal Conductivity: 1.3W/M*K
• Dielectric Constant: 3.8(1MHz,20 )
• Electrical Conductivity: 3us/Cm
• 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-quality Fused Silica Powder with exceptional thermal conductivity of 1.3W/M*K. Enhance your thermal management with our advanced silica-based solution.

Product Description

Discover our Grade A Fused Silica Powder with 1.3W/M*K Thermal Conductivity for high thermal performance. Ideal for various applications requiring efficient heat management.

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 our Fused Silica Powder with 1.3W/M*K Thermal Conductivity for high thermal performance. Ideal for thermal insulation and heat management.

		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:

• High purity amorphous powder


• Lowest coefficient of thermal expansion


• High resistance to thermal shock


• Low thermal conductivity


• Excellent electrical insulation and lower radiation

Fused Silica Applications:

• Epoxy molding compound


• Epoxy potting compound


• Electrical insulation


• Refractories, ceramic


• Filler for liquid type sealants


• Various types of resin fillers


• Resin substrates


• Precision casting


• Coating, painting


• Artificial marble

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. Particle size can be produced as per customer's special requirement.

Company: Lianyungang Chemsize International Trading Co., Ltd.

Third Party Test Report

Production Process

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 in aluminum launders or other highly cyclical applications.

At Lianyungang Chemsize International Trading Co., Ltd., we carefully select high purity silica sand (SiO2 > 99%) from local 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 according to customer requirements.

Detailed Photos

Discover our Fused Silica Powder with high thermal conductivity of 1.3W/M*K. Ideal for advanced thermal management solutions.

Packaging & Shipping

Our Fused Silica Powder with high thermal conductivity is packaged in 25kg plastic woven bags and delivered on pallets for convenience.

Explore our Fused Silica Powder with 1.3W/M*K Thermal Conductivity for high-performance thermal management solutions.

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 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 strings, plastic lines, carbon, wood, metal, or other contaminants.


• Any color dots are prohibited except for conditional black dots.


• Black spot diameter should not exceed 2mm.


• Total quantity of black dots 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

Welcome to Chemsize Fused Silica Products

Chemsize, a leading manufacturer of Fused Silica, offers high-quality grains and powders for various industries such as Refractory, Investment Casting, Technical Ceramic, and EMC filler. Our Fused Silica materials are known for their exceptional quality and performance.

Key Features:

• Amorphous SiO2 up to 99.9% minimum


• Low iron content (30ppm max)


• Low impurities for superior quality


• Low coefficient of thermal expansion


• High resistance to thermal shock


• Extremely low electrical conductivity

Our unique electric-arc fusion technique ensures that our Fused Silica is over 99.9% SiO2, providing excellent chemical stability and extremely low conductivity. With a low thermal expansion coefficient and consistent chemistry, our products are designed for specialized applications in foundry, refractory, and investment casting industries.

Applications:

• Crucibles for solar cell production


• Rollers, castables, and mortars in the glass industry


• Technical ceramic manufacturing


• Ceramic slurry for investment casting

Our standard packaging includes 25kg bags, 48 bags per pallet, or jumbags with a net weight of 1200kgs. We also offer tailored shipments for customers requiring bulk bags of varying sizes.

Investment Casting Grade:

Our Fused Silica is ideal for investment casting processes, producing precision products for automotive, aerospace, medical, and other industries.

Contact us at Lianyungang Chemsize International Trading Co., Ltd. for more information on our premium Fused Silica products.

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:

1. Particle shape: Our high-quality Fused Silica offers superior particle shape, crucial for primary slurry.


2. Decreased material consumption: Fused Silica's lower density compared to Zircon results in reduced material usage.


3. Increased permeability and porosity: Fused Silica enhances shell permeability and porosity.


4. Easier knock-out: Fused Silica facilitates easier shell removal post-casting.


5. Faster leaching and shell removal: Fused Silica aids in the leaching process and simplifies shell material removal.


6. Consistency and sustainability: Our Fused Silica, sourced from the world's largest producer in China, ensures consistency and availability.


7. Cost-effective: Fused Silica is competitively priced 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 performance in various applications.

FAQ:

1. Sample order: Samples are available free of charge for testing purposes.


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


3. MOQ: No minimum order quantity, but lower quantities may incur higher costs.


4. Shipping: Samples are shipped via ***/FEDEX/DHL with delivery times varying.

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