Product description
The composition of fire bricks with holes is aluminum, the production technology is to add high alumina particles in different proportions to high alumina powder, which is formed under high pressure and sintered at high temperature. So CH Refractories dense refractory bricks have high strength and good thermal shock stability.
Fire bricks with holes are the most widely used and widely used refractory product among refractory materials. They can be used in various furnace linings in industries such as metallurgy, building materials, environmental protection, power, glass, etc. They are most suitable for use at high temperatures of 1250-1500 ℃ furnace. It is also suitable for the plug head used as the lattice brick and pouring system of the regenerator in the open hearth.
Physical and chemical index of fire bricks with holes
|
Items |
Index |
|||
|
/ |
CH-LZ75 |
CH-LZ65 |
CH-LZ55 |
CH-LZ48 |
|
Al2O3%≥ |
75 |
65 |
55 |
48+ |
|
CCS/Mpa ≥ |
54 |
49 |
44 |
40 |
|
Apparent porosity/% ≤ |
23 |
23 |
22 |
22 |
|
Refractoriness under load /℃ ≥ |
1520 |
1500 |
1470 |
1420 |
|
Reheating linear change(1500℃,2h) |
+0.1 -0.4 |
+0.1 -0.4 |
+0.1 -0.4 |
+0.1 -0.4(1450℃.2h) |
|
Refractoriness/℃≥ |
1790 |
1790 |
1770 |
1750 |
Packages:
Physical and chemical index of fire bricks with holes
|
Items |
Index |
|||
|
/ |
CH-LZ75 |
CH-LZ65 |
CH-LZ55 |
CH-LZ48 |
|
Al2O3%≥ |
75 |
65 |
55 |
48+ |
|
CCS/Mpa ≥ |
54 |
49 |
44 |
40 |
|
Apparent porosity/% ≤ |
23 |
23 |
22 |
22 |
|
Refractoriness under load /℃ ≥ |
1520 |
1500 |
1470 |
1420 |
|
Reheating linear change(1500℃,2h) |
+0.1 -0.4 |
+0.1 -0.4 |
+0.1 -0.4 |
+0.1 -0.4(1450℃.2h) |
|
Refractoriness/℃≥ |
1790 |
1790 |
1770 |
1750 |
