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Synthetic Magnesia Refractories
| The synthetic magnesia refractories we now
export are fused magnesia chromite, high iron and high lime
synthetic magnesia, high lime and low silicon synthetic magnesia. |
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1. Fused Magnesia Chromite |
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This product is made from sorted high quality caustic calcined magnesite powder and chromite concentrate through blending, briquetting and smelting in electric arc furnace. It featured by good rate of direct bonding, high purity, big size of crystalline, etc which is essential material for making high grade
magnesia chromite bricks.
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Brand
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Chemical and Physical Specifications
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Size
mm |
|
MgO |
SiO2 |
CaO |
Fe2O3 |
Cr2O3 |
B.D. |
|
% ≥ |
% ≤ |
% ≤ |
% ≤ |
% ≥ |
g/cm3 ≥ |
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DMGS15A |
70 |
1.0 |
1.0 |
7 |
15 |
3.70 |
0-30
0-40
0-120 |
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DMGS15B |
70 |
1.5 |
1.5 |
10 |
15 |
3.70 |
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DMGS20 |
40 |
1.0 |
1.0 |
15 |
20 |
3.80 |
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DMGS25 |
36 |
1.0 |
1.0 |
17 |
25 |
3.90 |
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2. High Iron and High Lime Synthetic Magnesia |
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MTS-A |
MTS-B |
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This product is made from caustic calcined magnesite and iron powder through evenly grinding, briquetting or balling, high temperature sintering in rotary kiln or shaft kiln. It featured by high density, high strength, high resistance against corrosion, good thermal
resistance and volume stability. It is widely used in ramming bottom and slope of electric arc furnace.
MTS-A is made in shaft kiln whilst MTS-B in rotary kiln. |
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Brand |
MgO %
|
CaO % |
Fe2O3 % |
SiO2 % |
Crushing Strength MPa |
Linear Change after fired at 1,600ºC |
Serving Temperature
ºC
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|
1,300ºCX3h |
1,600ºCX3h |
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MTS-A |
≥83 |
7-9 |
5-7 |
≤1.2 |
≥11 |
≥26 |
≤1.9 |
1,850 |
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MTS-B |
68-78 |
≤9.0 |
≤10.0 |
≤2.5 |
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3. High Lime and Low Silicon Synthetic Magnesia |
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This product is made from natural high lime and low silicon magnesite through calcination, fine grinding, briquetting, high temperature sintering in shaft kiln. It featured by ceramic bonding, good density and corrosion resistance so it is good material of making finished refractory product for converter.
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Brand |
MgO %
|
CaO % |
SiO2 % |
Crushing Strength MPa |
Linear Change after fired at 1,600ºC |
Serving Temperature
ºC |
|
1,300ºCX 3h |
1,600ºCX 3h |
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MGS |
≥70 |
≥16 |
≤1.0 |
≥8 |
≥20 |
≤2 |
1,850 |
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