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ramming mixing for refractory Materials
Refractory Ramming is unshaped refractory materials that don’t need firing and features fluidness after adding water. It is mixed with grain, fines and binder in fixed proportion. It can replace special shaped refractory materials, and can be used directly without firing, easy to construct and has a high utilization rate and high cold crushing strength.
They are widely used in the glass industry, etc. It is easy use for construction, convenient and efficient, high intensity, labor saving and the whole construction completion period will be shortened.
ramming mixing for refractory Materials
Feature:
1: Combination of high intensity, good slag resistance, anti-stripping of good;
2: Good thermal shock stability;
3:Easy to remove residual lining;
4:Construction is simple and convenient, spraying machine can also be applied manually, pollution-free products.
Refractory mortar application :A variety of the lining of tundish repaired.
Items |
Index |
NO. |
|||
DD-200 |
DD-160 |
DD-135 |
DD-130 |
||
Chemcial composition(%) |
Al2O3 |
>80 |
>75 |
>65 |
>60 |
SiO2 |
<15 |
<19 |
<28 |
<34 |
|
Bulk Density(g/cm3) |
110°C×24h |
3.0 |
2.8 |
2.5 |
2.4 |
1000°C×3h |
2.9 |
2.8 |
2.5 |
2.4 |
|
Modulus of Rupture(Mpa) |
110°C×24h |
12 |
10 |
8.5 |
7.0 |
1000°C×3h |
18 |
15 |
13 |
11 |
|
Cold Crushing Strength(Mpa) |
110°C×24h |
120 |
90 |
68 |
50 |
1000°C×3h |
180 |
120 |
95 |
80 |
|
Liner change after buring |
1000°C×3h |
±0.2 |
±0.2 |
±0.3 |
±0.3 |
Wear resistance(AMTMc-704) |
3.0 |
5.0 |
7.0 |
9.0 |
|
Heat Conductivity (W/m.k) |
1.6 |
1.5 |
1.5 |
1.5 |
|
Thermal shock resistance(times)(1000°C water cooling) |
35 |
30 |
25 |
20 |
|
Refractoriness °C |
1790 |
1790 |
1750 |
1730 |
|
Max Working Temperature |
1550 |
1500 |
1400 |
1350 |
|
ramming mixing for refractory Materials
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