The iron runner castable that developed by CH Refractories is low cement Al2O3-SiC-C ramming mass, and self-flowing refractory castable, which divided three levels to meet different sizes of blast furnace iron runner and achieved very good performance.
The iron runner castable that developed by CH Refractories is low cement Al2O3-SiC-C ramming mass, and self-flowing refractory castable, which divided three levels to meet different sizes of blast furnace iron runner and achieved very good performance.
Applications of Iron Runner Castable:
•Different size blast furnace iron runner
Advantages of Iron Runner Castable:
• High strength at high temperature
• Good thermal shock stability
• No cracking with fast baking
• Not stick to slag
• Long service life and easy to construct
• Easy to patch
|
Item |
CH-TG1 |
CH-TG2 |
CH-TG3 |
CH-TG4 |
CH-TG5 |
CH-TG6 |
CH-TG7 |
CH-TG8 |
CH-TG9 |
|
|
Chemical composition/ |
AL2O3 ≥ |
78 |
58 |
71 |
65 |
76 |
77 |
74 |
65 |
70 |
|
SiC+C≥ |
10 |
30 |
13 |
18 |
14 |
15 |
10 |
18 |
9 |
|
|
Bulk density g/cm3 |
110℃×24h |
3.00 |
2.93 |
2.77 |
2.64 |
3.00 |
2.96 |
2.86 |
2.80 |
2.70 |
|
1450℃×3h |
2.95 |
2.85 |
2.56 |
2.54 |
2.95 |
2.95 |
2.85 |
2.76 |
2.68 |
|
|
Flexural strength/MPa ≥
|
110℃×24h |
8 |
9 |
7 |
7 |
4 |
7 |
3 |
7 |
7 |
|
1000℃×3h |
7 |
7 |
8 |
7 |
6 |
8 |
5 |
7 |
6 |
|
|
1450℃×3h |
7 |
7 |
13 |
9 |
12 |
13 |
9 |
7 |
7 |
|
|
Compressive strength/MPa≧
|
110℃×24h |
44 |
41 |
29 |
27 |
32 |
41 |
15 |
33 |
30 |
|
1450℃×3h |
45 |
53 |
41 |
39 |
76 |
83 |
76 |
46 |
43 |
|
|
Permanent Linear Change(1450℃×3h) |
±0.10 |
±0.03 |
±0.32 |
±0.25 |
±0.10 |
±0.10 |
±0.10 |
±0.20 |
±0.20 |
|
|
Casting water requirement /% |
4.5 |
5.0 |
5.5 |
6.0 |
4.5 |
4.5 |
5.0 |
5.0 |
5.2 |
|
|
Application
|
Blast furnace(≥2000m3)
|
Blast furnace(1000-2000m3) |
Blast furnace(＜1000m3) |
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|
Iron line for main runner |
Slag line of main runner |
iron runner Branch runner |
Slag runner of Branch runner |
Main runner |
Swing spout |
Branch runner |
Slag line |
Main runner |
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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.
The EAF refractory gunning mix uses high quality magnesia as the main materials, by adding compound binding additives, the series of gunning mixes for EAF refractory repairs feature high adhesive strength, low rebound rate, good sintering, good erosion resistance, and can be used as cold or hot refractory repairs materials at slag line and side wall.
Lightweight thermal insulating castable is formulated with different types of lightweight aggregates, powders, binders and expansion agents. lightweight castable refractory is a good new type of refractory insulation materials and energy-saving materials.
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