Corundum castable refractory is divided into cement-free corundum castable refractory and cement corundum castable refractory. Also there are different kinds of corundum castables refractory made by CH refractories company according to different raw material.
Corundum castable refractory is divided into cement-free corundum castable refractory and cement corundum castable refractory. Also there are different kinds of corundum castables refractory made by CH refractories company according to different raw material. For example, white fused alumina manufactured corundum castable refractory, brown fused alumina manufactured corundum castable refractory. Corundum castable refractory has good properties of high strength, good high temperature performance, stable volume, low thermal conductivity, strong resistance to slag penetration, erosion resistance, convenient construction, strong furnace structure.
Applications of Corundum Castable:
Steel furnace, cement kiln, glass kiln, iron making furnace, ceramic tunnel kiln and so on.
Advantages of Corundum Castable:
• High strength
• High temperature resistance
• Strong wear resistance
• Good erosion resistance
• Excellent thermal shock stability
|
Item |
CH-GYJ85 |
CH-GYJ90 |
CH-GYJ93 | |
|
AL2O3(%) |
85 |
90 |
93 |
|
|
Sio2(%) |
10 |
6 |
2 |
|
|
Bulk Density(g/cm3) |
2.9 |
3.0 |
3.0 |
|
|
|
110℃*24h |
80 |
100 |
80 |
|
1100℃*3h |
80 |
100 |
80 |
|
|
1500℃*3h |
80 |
100 |
80 |
|
|
|
110℃*24h |
8 |
12 |
8 |
|
1100℃*3h |
8 |
12 |
8 |
|
|
1500℃*3h |
8 |
15 |
8 |
|
|
Hot after-line rate of change(%) |
1100℃*3h |
-0.1~-0.3 |
-0.1~-0.3 |
+-0.2 |
|
Max Service temp(℃） |
1650 |
-0.1~-0.5 |
-0.2~-0.6 |
+-0.5 |
|
Construction methods |
Vibration |
Vibration |
Vibration |
|
|
Reference water volume（%） |
5~6 |
5.5~6.5 |
5.5~6.5 |
|
The high-strength wear-resistant self-flowing castables are made of high-quality bauxite clinker, mullite and fused corundum. The pure calcium aluminate cement, corundum micro-powder and silicon micro-powder are used as binders.
Refractory clay mortar is referred to as soft clay. It isair setting refractory mortar， a refractory clay with plasticity. The constituent minerals of high temperature mortar are mainly kaolinite and hydromica. Generally, refractory mortar mix contains Al2O3 ≥ 22% ~ 30%, SiO 2 ≥ 42% ~73%, and the refractoriness is 1580 ~ 1670 °C.
This series of high temperature kiln refractory high alumina bricks use special grade aluminum bauxite clinker as the main raw material, supplemented by special additives, high pressure forming and high temperature firing. Refractory bricks alumina has the characteristics of large heat storage capacity and small creep rate.
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