Ultra-Fine Fused Silica Powder Selection

• 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 offers top-quality Ultra-Fine Fused Silica Powder for various applications. Choose us for superior service and products!

Product Description

Discover our Grade A Ultra-Fine Fused Silica Powder, perfect for various applications like welding, investment casting, refractory shapes, and more. Trust in our high-quality silica powder for your industrial 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%

Ultra-Fine Fused Silica Powder Selection: High-purity silica powder with micron-sized particles for various applications like welding, refractory materials, and powder coating. Ideal for industrial use.

		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.

Special Feature:

Fused Silica features an extremely low coefficient of thermal expansion, consistent chemistry, and carefully controlled particle size distribution.

Applications:

Fused Silica is used in the industries of 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, 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.

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.

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 products into fused silica lump, sand, and powder according to customer requirements.

Company Information

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

Detailed Photos

Discover our Ultra-Fine Fused Silica Powder Selection for various applications like welding, investment casting, refractory shapes, powder coating, ceramics, and more.

Packaging & Shipping

Our Ultra-Fine Fused Silica Powder is delivered in 25kg plastic woven bags on pallets, ensuring secure packaging and convenient transportation.

Lianyungang Chemsize offers high-quality Ultra-Fine Fused Silica Powder for various industrial applications. Choose from a range of micron sizes for optimal performance.

Fused Silica Product Description

Welcome to Lianyungang Chemsize International Trading Co., Ltd.

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 resulting material is specially engineered into lumps, cullet, ingots, sand, grain, granular, and powder flour forms. These are 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.


• Only conditional black dots are allowed; all other 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.

For any inquiries, please feel free to contact us!

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 up to 99.9% min


• Low iron content (30ppm max)


• Low impurities for superior quality


• Low coefficient of thermal expansion


• High resistance to thermal shock


• Extremely low electrical conductivity

Manufacturing Process:

Our Fused Silica is produced using a unique 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 solar cell production, glass manufacturing, thermal resistance applications, investment casting, and more.

Product Range:

We offer a wide range of Fused Silica products, including crucibles, rollers, castables, mortars, ramming mixes, and specialized shapes for different industrial needs.

Packaging Options:

Our standard package is a 25kg bag, with options for bulk bags of varying sizes to suit customer preferences.

Investment Casting Grade:

Our Fused Silica is ideal for investment casting processes, providing precise castings with volume stability and tight tolerances for various industries.

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

Chemsize Fused Silica

Welcome to Chemsize Fused Silica

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

Advantages of Fused Silica:

• 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 sustainability


• Cost-effective 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:

1. Sample orders available with free shipping


2. Lead time: 3-5 days for samples, up to 15 days for orders


3. No MOQ for fused silica sand orders


4. Shipping via ***/FEDEX/DHL with prompt delivery

Summary:

Intermediate frequency furnace ramming material for various furnace lining applications, including acidic, neutral, and alkaline ramming materials.