Investment Casting Refractory Ramming Mass with Low Expansion Coefficient

• 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 Refractory Ramming Mass with Low Expansion Coefficient for various industrial applications. Discover our fused silica products today!

Product Description

Grade A Fused Silica sand & powder for Investment Casting Refractory Ramming Mass with Low Expansion Coefficient. Ideal for various applications in the casting industry.

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 Investment Casting Refractory Ramming Mass with Low Expansion Coefficient for superior performance in various applications. Ideal for induction furnace lining and ceramic welding hot 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.

Special Features:

• Extremely low coefficient of thermal expansion


• Consistent chemistry


• 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.

Particle size can be produced as per 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, such as in aluminum launders.

At Lianyungang Chemsize International Trading Co., Ltd., we carefully select high purity silica sand (SiO2 > 99%) from 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 based on customer requirements.

Detailed Photos

Fused Silica high clear Pictures for Investment Casting Refractory Ramming Mass with Low Expansion Coefficient. Ideal for Induction Furnace Lining and Thermal Shock Resistance.

Packaging & Shipping

Fused Silica Package and Delivery: 25kg Net Plastic Woven Bags on Pallets

Lianyungang Chemsize offers Investment Casting Refractory Ramming Mass with Low Expansion Coefficient for high-quality industrial applications.

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 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 making 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 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.

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.

Key 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

Production Process:

Our unique electric-arc fusion technique ensures the purity of our Fused Silica, exceeding 99.9% SiO2 content. The materials are amorphous, chemically stable, and meet ISO-certified standards.

Applications:

Our Fused Silica products are ideal for various applications including foundry, refractory, investment casting, and more. They are specially engineered for their low thermal expansion coefficient and consistent chemistry.

Product Range:

We offer a wide range of Fused Silica products including crucibles, rollers, castables, mortars, and more for industries like solar cells, glass, and thermal resistance.

Specialty Products:

Customized products are available for specific applications upon request, ensuring tailored solutions for our customers' needs.

Shipping Information:

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

Investment Casting Grade:

Our Fused Silica is used in investment casting processes for precision manufacturing in industries such as automotive, aerospace, and medical.

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, 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 formation.


• Decreased Material Consumption: With a lower density than Zircon, Fused Silica allows for reduced material usage, enhancing efficiency.


• Increased 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 properties.


• Faster Leaching and Shell Removal: The inclusion of Fused Silica expedites the leaching process and simplifies shell material removal.


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


• Cost-Effective: Priced at US$0.56/kg FOB LIANYUNGANG PORT, Fused Silica provides a cost-effective solution for investment casting foundries.

Fused Silica Applications

Used in induction furnace lining ramming materials, Fused Silica is ideal for various applications in medium frequency furnaces, including melting different metals and alloys.

FAQ

Q1: Can I request a sample of Fused Silica products?

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

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

A: Samples are dispatched within 3-5 days, while bulk orders are typically delivered 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 incur higher costs.

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

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