Low Expansion Fused Silica Investment Casting Refractory Material

• Customization: Available
• Certification: ISO
• Application: Rubber, Ceramic, Casting
• Model NO.: 10-20mesh, 20-50, 30-50, 50-100, 200mesh 325mesh
• 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%
• 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

Manufacturer of high-quality fused silica sand and powder for investment casting and refractory applications. Trust Lianyungang Chemsize for superior service and products.

Product Description

Discover our Grade A Fused Silica sand & powder for investment casting applications. High purity, low expansion, and thermal shock resistance.

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

Discover our Low Expansion Fused Silica Investment Casting Refractory Material for high-quality investment casting applications. Ideal for induction furnace linings and ceramic welding repairs.

		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.

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


• -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.

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.

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 ingots, which are then cooled. The products are further processed into fused silica lumps, sand, and powder according to customer requirements.

Company Information

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

Detailed Photos

Discover our Low Expansion Fused Silica Investment Casting Refractory Material for high-quality pictures.

Packaging & Shipping

25kg net Fused Silica Plastic Woven Bag packaging on pallet for secure delivery by Lianyungang Chemsize International Trading Co., Ltd.

Explore our Fused Silica Factory and Quality Control Pictures showcasing our Low Expansion Fused Silica Investment Casting Refractory Material. Ideal for various applications including induction furnace lining and ceramic welding.

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 form amorphous Silicon dioxide. The material is then specially 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 line, carbon, wood, metal, or other contaminants.


• Only conditional black dots are allowed, no other color dots.


• 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 us at 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 boasts a fusion ratio of up to 99.9% Amorphous SiO2, low iron content (30ppm max), and minimal impurities, resulting in low thermal expansion, excellent thermal shock resistance, and low electrical conductivity.

Our proprietary electric-arc fusion technique ensures the purity of our Fused Silica, exceeding 99.9% SiO2. With ISO-certified standards, our Fused Silica is inert, chemically stable, and has extremely low conductivity. The carefully controlled particle size distribution and consistent chemistry make our products ideal for foundry, refractory, investment casting, and other specialized applications.

Chemsize Fused Silica is widely used in various industries, including solar cell production, glass manufacturing, thermal resistance applications, investment casting, and more. Our products are available in different forms such as crucibles, castables, mortars, ramming mixes, and ceramic welding materials.

Whether you need Fused Silica for steelmaking, glass furnace repairs, or investment casting, Chemsize has a solution for you. Contact us today to learn more about our tailored packaging options and specialty products for specific applications.

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 Fused Silica offers superior particle shape, crucial for primary slurry.


2. Decreased Material Consumption: With half the density of Zircon, Fused Silica allows for reduced material usage.


3. Increased Permeability and Porosity: Fused Silica's lighter nature enhances shell permeability and porosity.


4. Easier Knock-Out: Fused Silica facilitates easier shell removal compared to Zircon.


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 consistent quality and availability.


7. Cost-Effective: Chemsize 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 materials, offering high purity and efficient performance in various metal melting processes.

FAQ:

1. Sample Order: Samples can be provided free of charge for testing purposes.


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


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


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

For premium quality Fused Silica products, trust Chemsize International Trading Co., Ltd. for all your investment casting needs.