Electrical Insulator Fused Quartz Flour

• 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.: 325mesh 400mesh 600mesh 800mesh 1250mesh 2000mesh
• Amorphous Sio2: >99%
• Quartz Sio2: <0.1%
• Cristobalite Sio2: <0.1%
• Thermal Conductivity: 1.3W/M*K
• Dielectric Constant: 3.8(1MHz,20 )
• Electrical Conductivity: 3us/Cm
• 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 sand and powder for electrical insulation applications. Experience the best service and quality with us!

Product Description

Grade A Fused Silica sand & powder for electrical insulation purposes. High purity and transparent material for various industrial 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%

Discover our Electrical Insulator Fused Quartz Flour with a thermal conductivity of 1.3w/m*k (20 ºC), dielectric constant of 3.8 (1MHz, 20 ºC), and electrical conductivity of 3 μs/cm. 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 Product Description

Fused Silica

Pan designates the percentage of fused silica passing the last reported screen for each size.

Fused Silica Special Features:

• High purity amorphous powder


• Lowest coefficient of thermal expansion


• High resistance to thermal shock


• Low thermal conductivity


• Excellent electrical insulation and lower radiation

Fused Silica Applications:

• Thermal ceramic industry


• Refractory industry


• Investment casting


• EMC applications


• Solar crucible manufacturing


• Quartz marble production


• Powder coating


• Epoxy molding compound


• Epoxy potting compound


• Electrical insulation


• Refactories and ceramics


• Filler for liquid type sealants


• Various types of resin fillers


• Resin substrates


• Precision casting


• Coating and painting applications


• Artificial marble production

Available Fused Silica 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 as per customer's special requirement.

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

Third Party Test Report

Production Process

Product Description:

At Lianyungang Chemsize International Trading Co., Ltd., we specialize in the production of high-quality fused silica. Our fused silica is derived from high purity quartz sand that has been meticulously melted to create a glassy ingot of amorphous silicon dioxide. With exceptional high volume stability, low volumetric expansion, and outstanding purity (SiO2>99%), our fused silica is ideal for a wide range of refractory applications.

We carefully select our raw materials from the local Donghai/Xinyi region, ensuring the highest quality silica sand for our production process. By subjecting the silica sand to intense heat (2000-2300 ºC) and subsequent cooling, we transform it into fused silica lumps, sand, and powder, tailored to meet the specific requirements of our customers.

Choose Lianyungang Chemsize International Trading Co., Ltd. for superior fused silica products that deliver unmatched performance and versatility in aluminum launders and other demanding applications.

Detailed Photos

Discover our premium Fused Silica Electrical Insulator, ideal for high clarity pictures. Made by Lianyungang Chemsize International Trading Co., Ltd.

Packaging & Shipping

Fused Silica Insulator in 25kg plastic woven bags, palletized for delivery. Ideal for electrical applications.

Explore our Fused Silica Factory and Quality Control Pictures at Lianyungang Chemsize International Trading Co., Ltd. for top-notch Electrical Insulator Fused Quartz Flour.

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.

Specifications:

1. No unfused parts are allowed.


2. Foreign materials like string, plastic line, carbon, wood, metal, or other contaminants are prohibited.


3. Color dots are not permitted except for conditional black dots.


4. Black spot diameter should not exceed 2mm.


5. 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

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.

Key Features:

• Amorphous SiO2 up to 99.9% min


• Low iron content (30ppm max)


• Low impurities for superior quality


• 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, with over 99.9% SiO2 content. It meets ISO-certified standards and offers excellent chemical stability and low conductivity.

Applications:

Chemsize Fused Silica is ideal for use in foundry, refractory, investment casting, and other specialized applications. It is commonly used in flow control, continuous casting, glass rolls, and more.

Product Range:

We offer a variety of Fused Silica products, including crucibles, rollers, castables, mortars, and more. Our standard packaging includes 25kg bags, 48 bags per pallet, or jumbags with a net weight of 1200kgs.

Specialty Products:

For specific applications, we provide homogeneously-blended products tailored to meet our customers' unique requirements.

Investment Casting Grade:

Our Fused Silica is widely used in investment casting processes for producing high-precision components in various 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, 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


• Reduced material consumption due to lower density


• Increased permeability and porosity for better shell quality


• Easier knock-out and shell removal process


• Consistent quality and sustainable sourcing from China


• 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 by ***/FEDEX/DHL. Mixed samples are also available.

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

A: Samples can be sent within 3-5 days. 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 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 and shipping method.

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