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>Refractory materials > Unshaped refractories |
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Unshaped
refractories |
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Unshaped
refractories
Converter gunning mixes QB-1 and QB-2 are manu-factured with high
quality magnesia and two-step burnt high purity magne-sia-dolomite
clinker, the best grain proportioning is chosen, one kind of binder
or more are added. They have high adhering rate and good resistance
to corrosion.
Magnesia gunning mix specifications
| Sort |
Physio
chemical Indexes of Magnesia Gunning Mixes |
| Brand pecitication |
QB-I |
QB-2 |
QB-3 |
QB-4 |
QB-5 |
QB-6 |
| MgO % ≥ |
80 |
74 |
95 |
90 |
S3 |
BO |
| CaO % ≥ |
7 |
10 |
4 |
u |
u |
u |
| SiO2
% ≤ |
3 |
3 |
3 |
5 |
7 |
9 |
| Cr2O3≥ |
2 |
2 |
1 |
1 |
u |
u |
| Grain Size mm |
0-3 |
0-3 |
0-4 |
0-3 |
0-3 |
0-3 |
| Application |
Conveter |
Converter |
Converter and Electric Furnace |
Converter and Electric Furnace |
Converter and Electric Furnace
|
Convener and Electric Furnace |
MgO-CaO ceramic bond-ing ramming mixes QD-1 and QD-2 is manufactured
with high quality magnesia and two-step burned ker as raw materials,
are installed by dry masonry method. The chemical and ceramic bonding
ramming mixes are made from high quality magnesia or MgO CaO clinker,
binder is added, they are installed by wet masonry method. They
are produced on the basis of the best grain proportioning, different
composition and installa-tion methods are chosen according to different
application. They are easy to sinter and resistant to melting wear.
Magnesia ramming mix specifications
| Sort |
Physiochemical Indexes of Magnesia
Gunning Mixes |
| Brand Specification. |
QD-l |
QD-2 |
QD-3 |
QD-4 |
QD-6 |
QDK- 10 |
QDK 18 |
QDK 95 |
| MgO % |
80-86 |
76-82 |
90-93 |
94-96 |
94-96 |
70 |
60 |
95 |
| Cr2O3 %
|
|
|
|
|
1 |
10 |
18 |
|
| CaO % |
4-9 |
>12-16 |
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|
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| Fe2O3 %
|
4-9 |
3-6 |
|
|
|
|
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| SiO2 % ≤ |
1.5 |
1.5 |
5 |
2 |
2 |
4 |
1.8 |
1.5 |
Magnesia refractory mortar specifications
| Sort |
Magnesia Refractory
Motar |
| Brand Specification |
f |
QN-2 |
QN-3 |
QN- 4 |
QN-5 |
QN-6 |
| MgO % ≥ |
80 |
90 |
93 |
95 |
55 |
80 |
| Cr2O3 %
|
|
|
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|
8- 14 |
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| Fe2O3 %
≤ |
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|
5 |
| Grain Size mm |
＞0.5 |
No
|
| <0.074
|
Over
60% |
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