1.Good high temperature strength, high temperature gas temperature in glass kiln can reach above 1615 °C, dome silicon bricks need to bear gravity, mechanical stress and high temperature load, requiring high temperature mechanical properties of silica brick, ie high load softening point (1640~1700 °C) The creep rate is low (1550 ° C, 50 h, 0.2 MPa, 6 × 10 - 3% ~ 7 × 10 - 3%).
2.The high temperature volume stability is good, and the volume change of the dome silicon brick cannot be used, otherwise the dome deformation will be damaged or even collapsed. Except for slight ablation after absorbing a small amount of alkali components, it does not affect the strength of the dome structure.
3.The overall integrity is good, in order to achieve high masonry quality, gray seam balance requirements.
4.
Specification of Silica Brick
| Item |
Unit |
Specifications |
| XBG-96 |
ZBG—96 |
DBG-96 |
| chemical composition |
Sio2 |
≥ |
% |
96 |
96 |
96 |
| Fe2o3 |
≤ |
% |
0.8 |
0.8 |
0.8 |
| Melt Index |
≤ |
% |
0.5 |
0.5 |
0.5 |
Physical properties |
Apparent porosity |
≤ |
% |
21 |
21 |
21 |
| True density |
≤ |
g/cm3 |
2.34 |
2.34 |
2.34 |
| 0.2mpaLoad begins to soften temperature |
≥ |
% |
1680 |
1680 |
1680 |
| Normal temperature compressive strength |
≥ |
Mpa
|
35 |
30 |
30 |
| Reburning line change |
≤ |
% |
+0.2 |
+0.2 |
+0.2 |
| Thermal expansion rate |
% |
Provide measured data |
