Silica Quartz Powder Fineness 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.: 0-1mm, 1-3mm, 3-5mm, 5-8mm, 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

Discover top-quality fused silica sand and powder from Lianyungang Chemsize International Trading Co., Ltd. Perfect for investment casting with high purity and exceptional service.

Product Description

Grade A Fused Silica Sand & Powder Specifications:

Discover our Silica Quartz Powder Fineness for Investment Casting, offering high purity and quality for various applications.

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

Explore our Silica Quartz Powder Fineness for Investment Casting, ideal for high purity quartz needs in refractory materials.

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

Product Name: Silica Quartz Powder Fineness for Investment Casting

Keywords: fineness silica powder, investment casting silica, fused quartz powder, high purity quartz, refractory silica quartz, amorphous silica casting

		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 Features:

Fused Silica features an 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, 0.212-0.425mm, 0.125-0.212mm, -0.044mm, -0.045mm, 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 according to the customer's special requirements.

Company Name: 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 ingot, which is then cooled. The products are further processed into fused silica lump, sand, and powder according to customer requirements.

Company Information

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

Detailed Photos

Discover our high-quality Silica Quartz Powder Fineness for Investment Casting, ideal for creating clear and detailed pictures. Perfect for various casting applications.

Packaging & Shipping

Fused Silica Plastic Woven Bag of 25kg Net each, Then on Pallet: ideal for packaging and delivery of Silica Quartz Powder Fineness for Investment Casting.

Fused Silica Factory and Quality Control Pictures

Explore our factory and quality control process for Silica Quartz Powder Fineness used in Investment Casting. Witness our commitment to high purity quartz and superior refractory materials.

Fused Silica Product Description

Welcome to Lianyungang Chemsize International Trading Co., Ltd.

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 resulting material is 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; 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 feel free to contact us!

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 received excellent feedback from customers worldwide.

• High fusion ratio (Amorphous SiO2 up to 99.9% min)


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


• Low coefficient of thermal expansion


• High resistance to thermal shock


• Very low electrical conductivity

Our unique electric-arc fusion technique results in Fused Silica with over 99.9% SiO2, low thermal expansion coefficient, and excellent chemical stability. Our products are ISO-certified and carefully engineered for specific applications.

Applications include crucibles for solar cell production, rollers in the glass industry, technical ceramics, investment casting, and more.

Standard packaging options include 25kg bags, 48 bags per pallet, or jumbags with a net weight of 1200kgs. Customized bulk bag shipments are available upon request.

Explore our range of Fused Silica products tailored for various industries, including refractory, investment casting, EMC fillers, powder coating, and more.

Investment Casting grade Fused Silica is ideal for precision casting in automotive, aerospace, medical, and other markets.

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. Our Fused Silica flour offers numerous advantages over traditional Zircon Flour:

• 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 sustainable sourcing


• Competitive pricing at US$0.56/kg FOB LIANYUNGANG PORT

Applications:

Our Fused Silica is ideal for use in induction furnace lining ramming material, providing superior performance in various applications.

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 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, but lower quantities may result in higher average costs.

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

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

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