Investment Casting Refractory Ramming Mass with Low Fe2o3 Concentration

• 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 Investment Casting Refractory Ramming Mass with low Fe2O3 concentration. We are your trusted supplier of high-purity fused silica materials for various applications.

Product Description

Grade A Fused Silica sand & powder for Investment Casting Refractory Ramming Mass with Low Fe2O3 Concentration. High-quality material for precision casting needs.

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 our Investment Casting Refractory Ramming Mass with Low Fe2O3 Concentration for superior performance. Ideal for various applications including 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 Feature:

Fused Silica features 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, 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:

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 it ideal 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:

• Exceptional stability and purity for reliable performance


• Versatile material suitable for various refractory applications


• Customizable products to meet specific needs

Choose Lianyungang Chemsize International Trading Co., Ltd. for top-quality fused silica products!

Detailed Photos

Fused Silica high clear Pictures for Investment Casting Refractory Ramming Mass with Low Fe2O3 Concentration. Top Quality from Lianyungang Chemsize International Trading Co., Ltd.

Packaging & Shipping

Our Fused Silica Package includes 25kg Plastic Woven Bags, delivered on pallets. Ideal for Investment Casting Refractory Ramming Mass with Low Fe2O3 Concentration.

Explore our top-quality Investment Casting Refractory Ramming Mass with low Fe2O3 concentration, made from high-purity Fused Silica for superior performance.

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 tailored for manufacturing PV fused silica crucibles, thermal ceramics, refractories, EMC investment casting ceramic shells, and more.

Fused Silica Sand Appearance and Specifications:

1. Must not contain any unfused parts.


2. Should be free of foreign materials like strings, plastic lines, carbon, wood, metal, or other contaminants.


3. Only conditional black dots are allowed; all other color dots are prohibited.


4. Black spot diameter should not exceed 2mm.


5. 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

Lianyungang Chemsize International Trading Co., Ltd. is a leading manufacturer of Fused Silica grains and powders. Our Fused Silica materials are used in various industries such as Refractory, Investment Casting, Technical Ceramic, and EMC filler. With a fusion ratio of up to 99.9% Amorphous SiO2, low iron content (30ppm max), and minimal impurities, our Fused Silica offers low thermal expansion, high thermal shock resistance, and low electrical conductivity.

Our unique electric-arc fusion technique ensures the production of pure Fused Silica with over 99.9% SiO2 content. This amorphous material has a low coefficient of thermal expansion, excellent thermal shock resistance, and meets ISO-certified standards. Chemsize Fused Silica is chemically stable, inert, and has extremely low conductivity.

Our Fused Silica products are specially engineered for foundry, refractory, investment casting, and other specialized applications. They offer low thermal expansion coefficient, consistent chemistry, and controlled particle size distribution. The material is highly insulative, making it ideal for applications requiring low thermal conductivity and thermal shock resistance.

Chemsize Fused Silica is available in various forms such as crucibles, rollers, castables, mortars, and ceramic slurry for different industries. We also offer tailored shipments in bulk bags of varying sizes to meet customer preferences.

Explore the wide range of applications for our Fused Silica, including investment casting, glass industry tools, technical ceramics, and more. Trust Chemsize for high-quality Fused Silica products that deliver exceptional performance in demanding environments.

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 in the industry.

Advantages of Fused Silica:

• 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 process


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


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

Application Areas:

Our Fused Silica products are suitable for use in induction furnace lining ramming materials, including acidic, neutral, and alkaline ramming materials. They are 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 via ***/FEDEX/DHL.

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

A: Samples are sent within 3-5 days, while bulk orders are delivered within 15 days for quantities up to 100mt.

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, with delivery times varying based on location.

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