The submerged entry nozzle continuous casting protects the liquid steel from being oxidized by the ambient air when it flows into the crystallizer from the tundish.
The submerged entry nozzle continuous casting protects the liquid steel from being oxidized by the ambient air when it flows into the crystallizer from the tundish. CH refractories submerged entry nozzle was well received by users with its good slag resistance, anti – blocking, long life, low accident rate and other excellent performance.
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Item |
CH-JLT-A |
CH-JBT |
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|
/ |
body |
slag line |
body |
slag line |
|
|
Chemical component（%）；≧
|
Al2O3;≧ |
40 |
—– |
45 |
—– |
|
SiO2;≦ |
20 |
—— |
15 |
—– |
|
|
C+SiC;≧ |
25 |
13 |
22 |
13 |
|
|
ZrO2;≧ |
—– |
70 |
—— |
75 |
|
|
Compression strength（MPa）;≧ |
20 |
20 |
20 |
14 |
|
|
Cold bending strength（MPa）;≧ |
6 |
5 |
8 |
5 |
|
|
Apparent porosity/%,≦ |
20 |
19 |
18 |
18 |
|
|
Bulk density（g/cm3）;≧ |
2.2 |
3.4 |
2.3 |
3.55 |
|
|
Thermal shock(times)(1100℃water cooling);≧ |
5 |
5 |
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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.
Low cement refractory castable made by CH Refractories with three levels, which are high aluminum low cement castable, mullite low cement castable and corundum low cement castable.
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.
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