Investment Casting Grade Fused Silica 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 high-quality Investment Casting Grade Fused Silica with low thermal expansion. Supplier of fused quartz for various applications.

Product Description

Discover our Grade A Fused Silica sand & powder for investment casting with low thermal expansion. Perfect for ceramic welding, induction furnace linings, 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

Discover Investment Casting Grade Fused Silica with Low Thermal Expansion from Lianyungang Chemsize. Ideal for various applications like ceramic welding, induction furnace linings, and more.

		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 Products

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 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 requirements.

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

Third Party Test Report

Production Process

Product Description

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

Product: Fused Silica

Description: Our fused silica is a high-purity quartz sand that has been melted to form glass. With high volume stability, low volumetric expansion, and exceptional purity, fused silica is a versatile material ideal for refractory applications such as aluminum launders. We meticulously select high-purity silica sand (SiO2>99%) from Donghai/Xinyi as our raw material. The silica sand is melted at temperatures between 2000-2300 ºC to create amorphous silicon dioxide glassy ingots, which are then processed into fused silica lumps, sand, and powder based on customer specifications.

Detailed Photos

Discover our Investment Casting Grade Fused Silica with Low Thermal Expansion for high-quality pictures. Perfect for ceramic welding, induction furnace linings, and more.

Packaging & Shipping

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

Explore our Investment Casting Grade Fused Silica with Low Thermal Expansion for superior quality in ceramic welding and induction furnace linings.

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 processed into lumps, cullet, ingots, sand, grain, granular, and powder flour forms. These 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 such as strings, plastic lines, carbon, wood, metal, or other contaminants.


• Any color dots are prohibited except for conditional black dots.


• Black spot diameter should not exceed 2mm.


• Total quantity of black dots 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

Chemsize, a leading manufacturer of Fused Silica, offers high-quality grains and powders for various industries. Our Fused Silica materials have excellent feedback from customers worldwide.

Key Features:

• Amorphous SiO2 up to 99.9% purity


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


• Low coefficient of thermal expansion


• High resistance to thermal shock


• Extremely low electrical conductivity

Production Process:

Our fused silica is manufactured using a proprietary electric-arc fusion technique, resulting in over 99.9% SiO2 purity. It meets ISO-certified standards and offers exceptional chemical stability and low conductivity.

Applications:

Chemsize Fused Silica is ideal for use in foundry, refractory, investment casting, and other specialized applications. It is commonly used in flow control, continuous casting, glass rolls, and solar cell production.

Product Range:

We offer a variety of fused silica products, including crucibles, rollers, castables, mortars, and ceramic slurry. Our products are tailored for specific applications and are available in various packaging options to suit customer needs.

Investment Casting Grade:

Our Fused Silica is widely used in investment casting processes for producing high-precision components in industries such as automotive, aerospace, and medical.

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

Introducing Chemsize Fused Silica

Chemsize Fused Silica is a leading supplier of raw materials and machines 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


• Decreased material consumption due to lower density


• Increased permeability and porosity for better shell quality


• Easier knock-out and shell removal


• Consistent quality and sustainability


• 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, offering high purity and reliable performance. It is widely used in coreless medium frequency furnaces and core induction furnaces for melting various metals and alloys.

FAQ:

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

A: Yes, we provide samples free of charge by ***/FEDEX/DHL.

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

A: Samples can be sent in 3-5 days. Orders within 100mt are 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 delivery time?

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

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