Fused Silica

It´s the main raw material of precision casting, glassceramic, refractory and electrical appliances. Also the sound filler of paint in the chemical industry.
Grain size: 0-1-3-5mm, 0.4-0.6mm , 0.25-0.4mm etc.
Powder size: 200mesh , 325mesh( D50=12um) etc.

Contact person: Danny Tao

Purity: 99.7
Material: Standard Grain sizes available -10+20 mesh, -30+50 mesh, -50+100 mesh

Special features: Extremely low coefficient of thermal expansion, consistent chemistry and carefully controlled particle size distribution.

Chem&Size minerals is manufacturer/factory of Fused silica powder, fused silica flour, fused quartz powder, fused quart flour, which is made of fused silica ingot/lumps by Non-Iron ball mills technology.
Fused silica ingot/lumps is made of high purity crystal silica by electrically fusing (fusing temperature 1800-2000ºC) to amorphous Silicon dioxide, then it is classed to different grades by manual and then specially engineered to powder by ball mill.

Applications:
High volume stability, high purity but low volumetric expansion makes fused silica powder a very useful and versatile material for refractory applications or other highly cyclical applications.

Chem&size Minerals fused silica powder has a near zero thermal expansion coefficient, consistent chemistry and carefully controlled particle size distribution. Fused silica powder are designed for use in refractory, flow control/continuous casting, investment casting, precision casting, lost-wax process, technical thermal ceramic and other special applications. Fused silica powder has very high electrical resistivity and low thermal conductivity, so it used as filler in epoxy melding compounds for semi-conductors and fusion bounded epoxy powder coatings.

Applications Details Product:
To make crucibles that produce solar cells board in the photo-voltaic industry.
Fused silica powder is used to make rollers, constables, mortars, gunning mixtures and forming tools in the glass industry, make technical ceramic in the thermal resistance industry, to make ceramic slurry in investment and to make Acidic acid refractory, Fused silica precast shapes, Fused silica big blocks and fused silica constables.

Filler of epoxy melding compound
Filler of epoxy potting compound
Filler of silicon rubber
Filler of functional coating
Filler of fusion bonded epoxy powder coating.

Fused silica powder's Main Characteristic:
Lower linear expansion coefficient lower tension & lower radiation it is environmentally, no harm to workers and environment.

Chemical Composition:
SiO2>99.9%
Al2O3

Fused silica Introduction
 Fused silica is made of high purity crystal silica by electrically fusing (fusing temperature 1800-2000â??) to amorphous Silicon dioxide , then it was classed to different grades by manual and then specially engineered to granular and powder form. Because fused silica has a very low thermal conductivity and excellent thermal shock resistance, it is used in lots of fields of investment casting,refractory,ceramic,epoxy modling compound,fusion bounded epoxy.
Fused Silica Properties
    Investment Casting Grade
2.1 SiO2 >99.90%
2.2 Al2O3

Fused silica (grains & powder) and crystalline silica ( sand & powder) , which are widely used as materials for investment casting , refractory , ceramics , artificial marble , epoxy molding compound (emc filler), paints, coating, foundry industries etc. Our products includes : 1. Fused silica grains / fused micro silica powder sio2: 99.9%min fe2o3 : 15ppm max -50ppm max, particle size: a : 3-100mm , 5-50mm, 8-5mm , 5-3mm , 3-1mm , 1-0.5mm , 0-0.5mm , 0.5-0.2mm , 0.2-0.1mm , 0.5-1mm b : - 4+10mesh , -10+20 mesh , -10+30 mesh , -30+50 mesh , -50+100mesh , -120f , -325f, -400f, -600f or in accordance with customer's request . 2. Crystalline silica sands / crystalline micro silica powder sio2 : 99.5% min-99.98%min fe2o3 : 5ppm max-30ppm max, particle size: 2-4mesh , 4-6mesh , 6-10 mesh , 10-20 mesh , 20-40 mesh , 40-80mesh , 80-200mesh , -100mesh , -200mesh , -325mesh , 400mesh , 600 mesh.

Fused silica is a glass consisting of pure silica (SiO2) in amorphous form. Fused quartz has high working and melting temperatures, making it less desirable for most common applications.

Fused silica is a glass consisting of pure silica in amorphous form.
Applications â??

Electrode flux coating
Optical components

Fused quartz from 200nm to 2.2um has high transmittance and low thermal expansion coefficient, which makes it an ideal choice for spherical lens in ultraviolet ray, visible light and near infrared spectrum applications with strict requirements. Spherical lens is commonly used to improve signal coupling between optical fibers, transmitters and detectors, as well as objective lenses in endoscopy and bar code scanning applications.
Hemispherical lens simplify the integration of the whole system.

Fused quarts at 200nm to 2.2um has high transmittance and low coefficient of thermal expansion, which makes it an ideal choice for spherical lens with strict requirements in ultraviolet, visible and near-infrared spectral applications. Spherical lenses are commonly used to improve signal coupling between optical fibers,transmitters and detectors,as well as objective lenses in endoscopy and bar code scanning applications. Hemispherical lens can simplify the integration of the whole system.

Fused SiO2 over 99.9%


Lumps, Grits Powder