With Al2O3 content ranging from 30% to 48%,Fire Clay Brick is a kind of refractory material which is made from clay clinker as an aggregate and refractory clay as bonding agent.
Clay Insulation bricks are weakly acidic refractory products that can resist the erosion of acidic slag and acidic gas.
（1）High temperature resistance.
（2）High wear resistance.
（3）It is weakly acidic at high temperatures.
（4）Strong erosion resistance.
（5）Good volume stability.
（6）low cost.
（1）High temperature clay bricks are widely used in metallurgy, glass, cement, ceramics, chemical and other high temperature industrial fields.
（2）Iron and steel manufacturing industry:
blast furnace,hot blast furnace,cupola furnace,teeming ladle,steel casting system,soaking furnace,heating furnace.
（3）Chemical industry:
kilns for silicate industry and chemical industry.
（4）Nonferrous metal smelting furnace.
|
Item |
Index |
||||||||
|
Model |
N-1 |
N-2a |
N-2b |
N-3a |
N-3b |
N-4 |
N-5 |
N-6 |
|
|
Refractory temperature（℃≥） |
1750 |
1730 |
1730 |
1710 |
1710 |
1690 |
1670 |
1580 |
|
|
Bulk densityg/cm3 |
2.1 |
-- |
-- |
-- |
-- |
2.0 |
-- |
2.0 |
|
|
Softening temperature under load[0.2MPa*0.6%]≥ |
1400 |
1350 |
-- |
1320 |
-- |
1300 |
-- |
-- |
|
|
Reburning line change rate（%） |
1400℃*2h |
+0.1-0.4 |
+0.1-0.5 |
+0.1-0.5 |
-- |
-- |
-- |
-- |
-- |
|
1400℃*2h |
-- |
-- |
-- |
+0.2-0.5 |
+0.2-0.5 |
+0.2-0.5 |
+0.2-0.5 |
-- |
|
|
Apparent porosity（%≤） |
22 |
26 |
24 |
24 |
26 |
24 |
26 |
28 |
|
|
Normal temperature compressive strength（MPa≥） |
30.0 |
20.0 |
25.0 |
20.0 |
15.0 |
20.0 |
15.0 |
15.0 |
|
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