|
1. High Alumina Refractory Products
item |
unit
|
index |
LLZ-75 |
LLZ-65 |
LLZ-55 |
LLZ-48 |
AI 2 O 3 ¡Ý |
% |
75 |
65 |
55 |
48 |
¡Ý
refractoriness |
o C |
1790 |
1790 |
1770 |
1750 |
softening temp under 0.2MP a load |
o C |
1520 |
1500 |
1470 |
1420 |
linear change of-heating |
1500 o C,2h |
% |
+0.1
-0.4 |
|
1450 o C,2h |
|
+0.1
-0.4 |
porosity |
% |
23 |
22 |
pressure resistance at normal temp |
MPa |
53.9 |
49.0 |
44.1 |
39.2 |
2. Alumina Brick for blast Furnace
item |
unit |
index |
GLLZ-65 |
GLLZ-55 |
GLLZ-48 |
AI 2 O 3 ¡Ý |
% |
65 |
55 |
48 |
Fe 2 O 3 ¡Ü |
% |
2.0 |
refractoriness |
o C |
1790 |
1770 |
1750 |
softening temp under 0.2MP a load |
o C |
1500 |
1480 |
1450 |
linear change of-heating |
1500 o C,2h |
% |
+0.0
-0.2 |
|
1450 o C,2h |
|
+0.0
-0.2 |
porosity |
% |
19 |
18 |
pressure resistance at normal temp |
MPa |
58.8 |
49.0 |
air permeability |
time |
The test data is indicated in the quality certificate |
3. Alumina Brick for Air Furnace
item |
unit |
index |
RL-65 |
RL-55 |
RL-48 |
AI 2 O 3 ¡Ý |
% |
65 |
55 |
48 |
refractoriness |
o C |
1790 |
1770 |
1750 |
softening temp under 0.2MP a load |
o C |
1500 |
1470 |
1420 |
linear change of-heating |
1500 o C,2h |
% |
+0.1
-0.4 |
|
1450 o C,2h |
|
+0.1
-0.4 |
porosity |
% |
24 |
pressure resistance at normal temp |
MP a |
49.0 |
44.1 |
39.2 |
heat and shock stability (1100 o Cwater cooling) |
´Î |
The test data is indicated in the quality certificate |
4. Alumina Brick with Phosphate
item |
unit |
index |
P-75 |
PA-77 |
AI 2 O 3 ¡Ý |
% |
75 |
77 |
Fe 2 O 3 ¡Ü |
% |
3.2 |
3.2 |
CaO¡Ü |
% |
0.6 |
0.6 |
refractoriness |
o C |
1780 |
1780 |
pressure resistance at normal temp |
MP a |
70 |
75 |
softening temp under 0.2MP a load |
o C |
1350 |
1300 |
buik density |
g/cm 3 |
2.70 |
2.75 |
5 £® Peel-off resistance alumina brick
Used as lining brick in high temperature zone of aluminium oxide chamotte kiln and rotary cement kiln. Good heat and shock stability, alkali corrosion resistance, proper softening load temperature for sticking and etc.
item |
unit |
KBL-80 |
KBL-65 |
KBL-48 |
KBL-40 |
GKBL-80 |
Al 2 O 3 ¡Ý |
% |
80 |
65 |
48 |
40 |
80 |
refractoriness ¡Ý |
o C |
1770 |
1770 |
1750 |
1750 |
1770 |
softening temp.under 0.2MPa load ¡Ý |
o C |
1520 |
1480 |
1450 |
1420 |
1450 |
linear change after re-sintering or sintering |
% |
1450 o C*2h
+0.1
-0 |
1400 o C*2h
+0.0
-0.4 |
1400 o C*2h
+0.0
-0.4 |
1350 o C*2h
+0.0
-0.4 |
1450 o C*2h
+0.1
-0.4 |
bulk density ¡Ý |
g/cm 3 |
2.9 |
2.3 |
2.2 |
2.3 |
2.9 |
pressure resistance at normal temp ¡Ý |
MPa |
80 |
50 |
50 |
60 |
80 |
heat and shock stability (1100 o C water cooling) ¡Ý |
times |
20 |
8 |
15 |
15 |
20 |
porosity ¡Ü |
% |
` |
28 |
26 |
` |
` |
alkali resistance |
` |
standard |
standard |
standard |
good |
standard |
Further, New peel-off resitance alumina brick is developed on the basis of above product and used for the requirement of coal-spraying pipe of alumina kiln, high grade ore sintering techque and large cement production line, suitable for sintering zone of alumina kiln, decomposing interim zone and kiln head of large cement production line. |
