Investment Casting Refractory Ramming Mass with Low Iron Oxide

• 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 Iron Oxide. Sio2>99.9%, low thermal expansion, and high thermal shock resistance.

Product Description

Investment Casting Refractory Ramming Mass with Low Iron Oxide

Grade A Fused Silica sand & powder with Sio2>99.9%. Ideal for induction furnace lining, ceramic welding, and investment casting. Low thermal expansion and high thermal shock resistance.

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 Iron Oxide for superior performance. With attributes like Low Impurities, High Resistance to Thermal Shock, and Low Coefficient of Thermal Expansion, it's perfect for various 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

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:

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.

Company name: 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 top-quality 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 fused silica a versatile material for refractory applications.

Raw Material

We strictly select high-purity silica sand (SiO2 > 99%) from local Donghai/Xinyi as our raw material.

Manufacturing Process

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 according to customer requirements.

Benefits:

• High purity silica sand


• Amorphous silicon dioxide glassy ingots


• Customizable products

Contact us today to explore our premium fused silica products!

Detailed Photos

Fused Silica Ramming Mass with Low Iron Oxide for Investment Casting, featuring Sio2>99.9%, high thermal shock resistance, and low electrical conductivity.

Packaging & Shipping

Fused Silica Ramming Mass in 25kg plastic woven bags, palletized for delivery. Ideal for investment casting with low iron oxide content.

Explore our Fused Silica Ramming Mass for Investment Casting with Low Iron Oxide content. Ideal for Induction Furnace Lining and Ceramic Welding Hot Repairs.

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 of 1800-2000ºC to create amorphous Silicon dioxide. The material is then 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 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

Chemsize is a leading manufacturer of Fused Silica grains and powders, essential raw materials for industries such as Refractory, Investment Casting, Technical Ceramic, and EMC filler. Our Fused Silica materials boast exceptional quality, with a fusion ratio of up to 99.9% Amorphous SiO2, low iron content (30ppm max), and minimal impurities. This results in materials with low thermal expansion, high thermal shock resistance, and very low electrical conductivity.

Our Fused Silica is produced using a proprietary electric-arc fusion technique, ensuring purity exceeding 99.9% SiO2. It exhibits amorphous properties, low thermal expansion coefficient, high thermal shock resistance, and excellent size integrity, meeting ISO-certified standards. Chemsize Fused Silica is chemically stable, inert, and boasts extremely low conductivity.

Our products include specialty blends and homogeneously-blended materials tailored to specific applications. Chemsize Fused Silica is engineered for foundry, refractory, investment casting, and other specialized uses, offering consistent chemistry, controlled particle size distribution, and a remarkably low thermal expansion coefficient.

Applications of Fused Silica span various industries, from solar cell crucibles in the photo-voltaic sector to rollers, mortars, and forming tools in the glass industry. It is also utilized in technical ceramics, investment casting slurries, and refractory applications like acidic acid refractory and precast shapes.

Our standard packaging includes 25kg bags, 48 bags per pallet, or jumbo bags with a net weight of 1200kgs. We accommodate custom shipments for customers requiring bulk bags of varying sizes.

For investment casting, our Teco-Sil Fused Silica offers exceptional volume stability and enables the production of tight tolerance castings with ease of shell removal. In addition, our Fused Silica is ideal for high-temperature applications, such as coreless induction furnace ramming mixes for steel melting.

Explore the versatility and quality of Chemsize Fused Silica for your industry needs.

Chemsize Fused Silica

Welcome to Chemsize Fused Silica

Introducing Chemsize Fused Silica, a leading supplier of raw materials and machinery for investment casting for over 30 years.

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 sustainable sourcing


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

Application Areas:

Widely used in coreless medium frequency furnaces and core induction furnaces for melting various metals and alloys.

FAQ:

1. Sample orders available with free shipping


2. Lead time: 3-5 days for samples, up to 15 days for orders


3. No minimum order quantity for fused silica sand


4. Shipping via ***/FEDEX/DHL with prompt delivery

Summary:

Intermediate frequency furnace ramming material for various furnace applications, including acidic, neutral, and alkaline options.

Company: Lianyungang Chemsize International Trading Co., Ltd.