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产品介绍:
又称硅质隔热砖,主要以硅质原石为原材料,配以外加剂高温烧制而成。具有稳定性高,导热系数低, 重烧线变化小等特点,广泛被用于冶金、玻璃等工业窑炉。
Product introduction:
Also known as siliceous thermal insulation brick,it is mainly made of siliceous raw stone as raw material and fired at high temperature with additives.It has the characteristics of high stability,low thermal conductivity,and small changes in the reheating line,and is widely used in industrial kilns such as metallurgy and glass.
|
项目Item |
GGR-1.2 |
GGR-1.0 |
GGR-0.8 |
GGR-0.6 |
|
|
SiO₂% |
92 |
92 |
90 |
89 |
|
|
Fe2O3 |
0.60 |
0.57 |
0.52 |
0.62 |
|
|
CaO |
2.5 |
2.7 |
3.0 |
3.3 |
|
|
体积密度g/cm³ |
1.2 |
1.0 |
0.8 |
0.6 |
|
|
常温耐压强度Mpa |
5.0 |
4.5 |
3.0 |
2.5 |
|
|
耐火度℃ |
1640 |
1620 |
1610 |
1600 |
|
|
重烧线变化% |
±0.5 1480℃×2h |
±0.5 1450℃×2h |
±0.5 1400℃×2h |
±0.5 1350℃×2h |
|
|
导热系数W/m ·k |
400℃ |
0.36 |
0.30 |
0.26 |
0.22 |
|
600℃ |
0.39 |
0.33 |
0.29 |
0.25 |
|
|
800℃ |
0.41 |
0.36 |
0.31 |
0.28 |
|
|
1000℃ |
0.44 |
0.39 |
0.34 |
0.31 |
|