Amorphous Silicon Oxide Ramming Mass for Investment Casting

• 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 offers high-quality fused silica ramming mass for investment casting. Ideal for induction furnace lining and ceramic welding repairs.

Product Description

Grade A Fused Silica sand & powder for investment casting applications. High purity, low iron content, and 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 Amorphous Silicon Oxide Ramming Mass for Investment Casting, ideal for induction furnace linings and ceramic welding repairs. High purity and low iron content ensure superior performance.

		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:

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. 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.

Raw Material

We strictly choose high purity silica sand (SiO2 > 99%) from 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 cooled. The products are further processed into fused silica lumps, sand, and powder according to customer requirements.

About Us

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

Detailed Photos

Fused Silica high clear pictures for investment casting with low iron content and high purity. Ideal for induction furnace lining and thermal shock resistance.

Packaging & Shipping

Fused Silica Ramming Mass for Investment Casting in 25kg plastic woven bags on pallets. Ideal for induction furnace lining and investment casting applications.

Explore our Fused Silica Ramming Mass for Investment Casting, ideal for induction furnace linings and investment casting applications. High purity, low iron content, and thermal shock resistance.

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

Appearance and Specifications of Fused Silica Sand:

• Must not contain any unfused parts.


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


• Except for conditional black dots, all 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 grains and powders, offers high-quality materials for various industries such as Refractory, Investment Casting, Technical Ceramic, and EMC fillers. Our Fused Silica materials are known for their exceptional quality and performance.

Key Features of Chemsize Fused Silica:

• Amorphous SiO2 content up to 99.9% min


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


• Very low coefficient of thermal expansion


• High resistance to thermal shock


• Extremely low electrical conductivity

Our proprietary electric-arc fusion technique ensures that our Fused Silica is of the purest quality, with over 99.9% SiO2 content. It meets ISO-certified standards and offers excellent chemical stability and low conductivity.

Applications of Chemsize Fused Silica:

• Crucibles for solar cell production in the photo-voltaic industry


• Rollers, castables, mortars, and forming tools in the glass industry


• Technical ceramic in the thermal resistance industry


• Ceramic slurry in investment casting industry

Specialty Products Available:

We also offer specialty products tailored for specific applications, including fused silica shapes, ramming mixes, and ceramic welding materials.

Standard Packaging Options:

Our standard package includes 25kg bags, 48 bags per pallet, or jumbo bags with a net weight of 1200kgs. Customized bulk bag shipments are available upon request.

Contact us at Lianyungang Chemsize International Trading Co., Ltd. for more information on our Fused Silica products.

Introducing Chemsize Fused Silica

Chemsize Fused Silica is a leading supplier of raw materials and machinery for investment casting foundries. With over 30 years of experience, we offer Fused Silica flour as an alternative to Zircon Flour for primary slurry production, providing numerous advantages:

• Enhanced particle shape for optimal primary slurry performance


• Reduced material consumption due to Fused Silica's lower density


• Improved permeability and porosity for better shell quality


• Easier knock-out and shell removal process


• Consistent quality and sustainability compared to Zircon


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

Our Fused Silica is sourced from the world's largest production area in China, ensuring reliability and supply stability. It is ideal for induction furnace lining ramming material, offering high purity and efficient performance.

Summary:

The intermediate frequency furnace ramming material, available in acidic, neutral, and alkaline variants, is suitable for various applications in coreless medium frequency furnaces and core induction furnaces. It is used for melting a wide range of materials, including cast iron, steel, stainless steel, aluminum alloys, copper, and bronze.

FAQ:

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

A: Yes, we provide free samples via ***/FEDEX/DHL, with mixed samples accepted.

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

A: Samples can be sent within 3-5 days, while bulk orders typically ship 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 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 and shipping method.