Investment Casting Refractory with Low Thermal Expansion

• 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 International Trading Co., Ltd. offers top-quality fused silica sand and powder for investment casting refractory applications. Experience the best service and quality with us!

Product Description

Grade A Fused Silica sand & powder for Investment Casting Refractory with Low Thermal Expansion. Ideal for induction furnace lining, ceramic welding, and more.

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 Investment Casting Refractory with Low Thermal Expansion, perfect for various applications. Discover its benefits today!

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

Product Name: Investment Casting Refractory with Low Thermal Expansion

Keywords: investment casting refractory, low thermal expansion material, fused silica refractory, amorphous silicon oxide refractory, low iron fused silica, induction furnace lining material, thermal shock resistant material

		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.

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 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 the customer's special requirement.

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

Third Party Test Report

Production Process

Fused Silica Production Process

Welcome to Lianyungang Chemsize International Trading Co., Ltd.

Discover our high-quality fused silica products:

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.

Key Features:

• High purity silica sand (SiO2 > 99%) sourced locally from Donghai/Xinyi


• Melted at high temperatures (2000-2300 ºC) to form amorphous silicon dioxide glassy ingot


• Available in fused silica lump, sand, and powder based on customer requirements

Benefits:

• Excellent stability and low expansion for reliable performance


• Perfect for aluminum launders and other high-cyclical applications


• Customizable products to meet specific needs

Contact us today to explore our premium fused silica offerings!

Detailed Photos

Fused Silica for investment casting refractory with low thermal expansion, high clarity pictures.

Packaging & Shipping

Fused Silica Package and Delivery: 25kg Net Plastic Woven Bags on Pallets. Supplier: Lianyungang Chemsize International Trading Co., Ltd.

Explore our Fused Silica Factory and Quality Control Pictures showcasing our Investment Casting Refractory with Low Thermal Expansion. Contact Lianyungang Chemsize International Trading Co., Ltd. for more information.

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 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 not have any foreign materials such as string, plastic line, carbon, wood, metal, or other contaminants.


• Only conditional black dots are allowed; all 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 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 grains and powders, offers high-quality materials for various industries such as Refractory, Investment Casting, Technical Ceramic, and EMC fillers. Our Fused Silica materials are known for their exceptional purity, low thermal expansion, thermal shock resistance, and minimal electrical conductivity.

At Chemsize, we produce Fused Silica using a proprietary electric-arc fusion technique, resulting in over 99.9% SiO2 content. Our products adhere to ISO-certified standards, ensuring consistent quality and performance. Whether for foundry, investment casting, or specialized applications, Chemsize Fused Silica is engineered to meet your needs.

Key Features:

• High fusion ratio (Amorphous SiO2 up to 99.9% min)


• Low iron content (30ppm max) and minimal impurities


• Low coefficient of thermal expansion


• Excellent thermal shock resistance


• Extremely low electrical conductivity

Applications:

Our Fused Silica products are versatile and find applications in various industries:

• Solar cell crucibles in the photo-voltaic industry


• Rollers, castables, and mortars in the glass industry


• Technical ceramics for thermal resistance


• Ceramic slurry in investment casting

Product Range:

We offer a wide range of Fused Silica products tailored to specific needs:

• Precast shapes


• Big blocks


• Ramming mixes for induction furnaces


• Resin fillers, EMC fillers, and powder coatings


• And more...

For investment casting applications, our Fused Silica grade ensures precision and volume stability, making it ideal for various industries.

Contact Chemsize today to discover how our Fused Silica products can elevate your manufacturing processes.

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. Our Fused Silica flour offers numerous advantages for your primary slurry:

• Better particle shape for improved primary slurry quality


• Reduced material consumption due to lower density


• Increased permeability and porosity for better shell quality


• Easier knock-out and shell removal process


• Consistent and sustainable sourcing from the world's largest Fused Silica production area


• 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, intermediate frequency furnace lining, and dry vibration material. It is suitable for melting various metals including cast iron, steel, stainless steel, aluminum, copper, and bronze alloys.

FAQ:

Q1: Can I request a sample order for Fused Silica products?

A: Yes, we offer free samples shipped by ***/FEDEX/DHL.

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 delivery time?

A: Goods are shipped promptly, and delivery times vary based on location.

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