Low 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 top-quality Low Expansion Fused Silica Investment Casting Material for superior performance in various applications.

Product Description

Grade A Fused Silica sand & powder for Investment Casting with low expansion, high fusion ratio, and resistance to thermal shock. Ideal for various applications.

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 Expansion Fused Silica Investment Casting Material for superior thermal shock resistance and electrical conductivity. Ideal for investment casting and induction furnace applications.

		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 Features:

• Extremely low coefficient of thermal expansion


• Consistent chemistry


• Carefully controlled particle size distribution

Applications:

• Thermal ceramic industry


• Refractory industry


• Investment casting


• EMC applications


• Solar crucible manufacturing


• Quartz marble production


• Powder coating

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

The particle size can be produced according to customer's special requirements.

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

Third Party Test Report

Production Process

Fused Silica Product Description

Welcome to Lianyungang Chemsize International Trading Co., Ltd.

Discover our premium fused silica products, meticulously crafted for exceptional performance in refractory applications. Our fused silica is derived from high-purity quartz sand, ensuring unparalleled quality and reliability.

Key Features:

• High volume stability


• Low volumetric expansion


• High purity (SiO2 > 99%)

Production Process:

We carefully select high-purity silica sand from Donghai/Xinyi as our raw material. Through a meticulous process of melting at temperatures ranging from 2000-2300 ºC, the silica sand transforms into amorphous silicon dioxide glassy ingot. The resulting fused silica is then processed into lump, sand, and powder variants to meet the specific requirements of our customers.

Choose Lianyungang Chemsize International Trading Co., Ltd. for top-tier fused silica products that excel in aluminum launders and other demanding applications.

Detailed Photos

Discover our Low Expansion Fused Silica Investment Casting Material for high-quality pictures. Ideal for investment casting, induction furnace lining, and more.

Packaging & Shipping

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

Explore our Low Expansion Fused Silica Investment Casting Material for superior quality in investment casting applications. Ideal for induction furnace lining, ramming material, and more.

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 engineered into various forms such as lumps, cullet, ingots, sand, grain, granular, and powder flour. These forms are ideal 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 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, offers high-quality grains and powders for various industries such as Refractory, Investment Casting, Technical Ceramic, and EMC fillers.

Product Features:

• Amorphous SiO2 content up to 99.9% for superior quality


• Low iron (30ppm max) and minimal impurities


• 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:

Our Fused Silica products are ideal for various applications including foundry, refractory, investment casting, and more. They are specially engineered for use in industries like glass manufacturing, steelmaking, and thermal resistance applications.

Product Range:

We offer a wide range of Fused Silica products including crucibles, rollers, castables, mortars, and more. Our products are tailored for specific applications and can be customized upon request.

Packaging:

Standard packaging includes 25kg bags, 48 bags per pallet, or jumbo bags with a net weight of 1200kgs. We also offer customized packaging options for bulk orders.

Investment Casting Grade:

Our Fused Silica is perfect for investment casting processes, providing volume stability and tight tolerance castings. It is widely used in automotive, aerospace, medical, and other industries.

Contact us at Lianyungang Chemsize International Trading Co., Ltd. for more information.

Introducing Chemsize Fused Silica

Chemsize Fused Silica is a leading supplier of raw materials and machinery for investment casting processes, with over 30 years of experience.

Advantages of Fused Silica:

1. Better particle shape for primary slurry


2. Decreased material consumption due to lower density


3. Increased permeability and porosity for improved shell quality


4. Easier knock-out and shell removal


5. Consistent quality and sustainability


6. Cost-effective pricing at US$0.56/kg FOB LIANYUNGANG PORT

Application Areas:

Our Fused Silica is ideal for use in induction furnace lining ramming materials, including acidic, neutral, and alkaline ramming materials. It is widely used in coreless medium frequency furnaces and core induction furnaces for melting various metals and alloys.

FAQ:

Q1: Can I request a sample order for fused silica products?

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

Q2: What is the lead time for samples and bulk orders?

A: Samples can be sent within 3-5 days. Bulk orders of up to 100mt are usually delivered within 15 days.

Q3: Is there a minimum order quantity for fused silica sand?

A: No, but lower quantities may result in higher average costs.

Q4: How are the goods shipped and what is the estimated delivery time?

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

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