Low Thermal Expansion Fused Silica Investment Casting 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

Lianyungang Chemsize International Trading Co., Ltd. offers high-quality Low Thermal Expansion Fused Silica Investment Casting Material for various applications.

Product Description

Grade A Fused Silica sand & powder for low thermal expansion investment casting material.

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 Low Thermal Expansion Fused Silica Investment Casting Material for a range of applications. High purity, low iron content, and exceptional thermal shock resistance.

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

Applications:

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


• -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 customer's special requirement.

Company: Lianyungang Chemsize International Trading Co., Ltd.

Third Party Test Report

Production Process

Fused Silica Production Process

High Purity Fused Silica by Lianyungang Chemsize International Trading Co., Ltd.

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 it an ideal material for refractory applications, such as aluminum launders.

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 specifications.

Detailed Photos

Discover our Low Thermal Expansion Fused Silica Investment Casting Material for high-quality pictures. Perfect for various applications like induction furnace lining and powder coating fillers.

Packaging & Shipping

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

Explore our Low Thermal Expansion Fused Silica Investment Casting Material for superior quality and performance. Ideal for various applications including induction furnace lining, powder coating filler, and more.

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 tailored 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, metals, 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 a big bag.

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 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

Production Process:

Our unique electric-arc fusion technique ensures the purity of our Fused Silica, exceeding 99.9% SiO2. It meets ISO-certified standards, offering excellent chemical stability and low conductivity.

Applications:

Our 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, and ramming mixes for different industrial needs.

Specialty Products:

Customized blends and sizes are available upon request to meet specific application requirements.

Packaging:

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

Investment Casting Grade:

Our Fused Silica is ideal for investment casting processes, providing volume stability and tight tolerance castings for various markets.

Contact us today to discover the superior quality and versatility of Chemsize Fused Silica!

Introducing Chemsize Fused Silica

Chemsize Fused Silica is a leading supplier of raw materials and machinery for investment casting foundries. With over 30 years of experience, we offer high-quality Fused Silica flour as an alternative to Zircon Flour for primary slurry production.

• Particle Shape: Our Fused Silica flour boasts superior particle shape, crucial for primary slurry applications.


• Decreased Material Consumption: With half the density of Zircon, Fused Silica allows for reduced material usage while maintaining viscosity and flow properties.


• Enhanced Permeability and Porosity: Fused Silica's lighter composition improves shell permeability and porosity compared to Zircon.


• Easier Knock-Out: Fused Silica facilitates easier shell removal post-casting due to its unique Cristobalite formation.


• Faster Leaching and Shell Removal: Fused Silica aids in the leaching process and simplifies shell material removal from cavities and holes.


• Consistency and Sustainability: Our Fused Silica, sourced from the world's largest producer in China, offers consistent quality and availability.


• Cost-Effective: Chemsize Fused Silica is competitively priced at US$0.56/kg FOB LIANYUNGANG PORT.

Fused Silica Applications

Our Fused Silica is ideal for induction furnace lining ramming material, offering superior performance in various applications.

Summary

The intermediate frequency furnace ramming material, available in acidic, neutral, and alkaline variants, is suitable for coreless medium frequency furnaces and core induction furnaces.

FAQ:

1. Sample Order: Free samples of Fused Silica products are available for shipping via ***/FEDEX/DHL.


2. Lead Time: Samples can be sent within 3-5 days, while orders under 100mt are typically delivered within 15 days.


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


4. Shipping: Goods are shipped promptly, with delivery times varying based on location.

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