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Description: 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.
Origin:China Jiangsu
MOQ:1Metric Ton/Metric Tons
FOB:perMetric Ton/Metric Tons500--900USD
Port:Lianyungang
Payment Terms:T/T
Supply Ablility:200Metric Ton/Metric Tons
Supply Time:Month
Packaging Details:25kg/bag ,then 1000kg/bag . 20-25mt/1x20container .
Product detail:
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Investment Casting Grade |
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2.1 |
SiO2 |
>99.90% |
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2.2 |
Al2O3 |
<200ppm |
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The finer the power,the higher the Al2O3,as powder is produced by ball mill with Alumina ball. |
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2.3 |
Fe2O3 |
<50ppm |
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2.4 |
TiO2 |
<20ppm |
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2.5 |
MgO |
<40ppm |
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2.6 |
CaO |
<40ppm |
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2.7 |
Alkalies |
<100ppm |
