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Fused silica powder

點(diǎn)擊次數(shù):85   更新時(shí)間2018-09-20     【關(guān)閉分    享:

Fused silica Introduction 
 Fused silica is made of high purity crystal silica by electrically fusing (fusing temperature 1800-2000℃) 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

<200ppm

The finer the power,the higher the Al2O3,as powder is produced by ball mill with Alumina ball.

2.3

Fe2O3

<50ppm

2.4

TiO2

<20ppm

2.5

MgO

<40ppm

2.6

CaO

<40ppm

2.7

Alkalies 
Na2O+K2O

<100ppm


Fused Silica Application 
Refractory, ceramic, investment casting, foundry, epoxy molding compound, fusion bounding epoxy powder coating. 

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