Fused silica powder
点击次数：85 更新时间2018-09-20 【关闭】 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 |
<100ppm |
Fused Silica Application
Refractory, ceramic, investment casting, foundry, epoxy molding compound, fusion bounding epoxy powder coating.
