|
FUSED SILICA |
Items |
Unit |
Index
|
Typical
|
Chemical
composition |
SiO2 |
% |
99.90 min |
99.95 |
Al2O3 |
ppm |
300 max |
120 |
Fe2O3 |
ppm |
50
max |
30 |
Na2O+K2O |
ppm |
100 max |
60 |
Refractoriness |
℃ |
1750
min |
Specific gravity |
g/cm3 |
2.15 |
Mohs hardness
|
--- |
7 min |
Refractory grade
|
Grains
|
mesh |
4/10,
10/20, 20/50, 50/100
|
Powder
|
mesh |
-120,
-150, -200, -325 |
Application: Investment
Casting, Refractory and
Electronic industry |
|
|
PARTICLE SIZE
SPECIFICATIONS |
|
cullets |
4+10 mesh |
4+20 mesh |
10+20 mesh |
20+50
mesh |
50+100
mesh |
100+200 mesh |
60mm** |
|
|
|
|
|
|
|
4 mesh |
|
0%-20% |
0%-5% |
|
|
|
|
5 mesh |
|
|
|
|
|
|
|
6 mesh |
|
20%-48% |
5%-20% |
|
|
|
|
8 mesh |
|
|
|
|
|
|
|
10 mesh |
|
29%-59% |
|
0%-1% |
|
|
|
14 mesh |
|
|
|
|
|
|
|
20 mesh |
|
2%-20% |
70%-80% |
80%-95% |
0%-1% |
|
|
30 mesh |
|
Pan:0%-2% |
pan 0%-1% |
2%-16% |
25%-40% |
|
|
40 mesh |
|
|
|
|
32%-45% |
0%-0.5% |
|
50 mesh |
|
|
|
0%-4% |
15%-30% |
3%-12% |
0 |
70 mesh |
|
|
|
Pan:0%-2% |
|
|
|
80 mesh |
|
|
|
|
0%-11% |
|
|
100 mesh |
|
|
|
|
Pan:0%-0.5% |
72%-87% |
0%-5% |
120 mesh |
|
|
|
|
|
|
|
** accumulated ranges,
US screen except for
cullets |
|
PARTICLE SIZE
SPECIFICATIONS
|
|
cullets |
100 mesh |
120 mesh |
200 mesh |
60mm** |
|
|
|
|
|
|
|
|
|
40 mesh |
|
|
|
|
50 mesh |
|
|
0%-0.5% |
|
70 mesh |
|
|
|
0% |
80 mesh |
|
0%-1% |
|
0%-0.5% |
100 mesh |
|
0%-8% |
4%-12% |
0%-0.5% |
120 mesh |
|
|
|
|
140 mesh |
|
15%-45% |
7%-13% |
0%-4% |
200 mesh |
|
10%-35% |
10%-15% |
3%-9% |
270 mesh |
|
7%-30% |
|
|
325 mesh |
|
2%-12% |
14%-20% |
13%-20% |
|
|
pan:4%-20% |
pan:45%-55% |
pan:69%-81% |
|
|
** accumulated ranges, US screen
except for cullets
Grains and powders are available
in all the internationally used
standard sizes. |