Product description
The quality of large refractory bricks is distinguished by different aluminum content and body density, and the fire resistance of high alumina bricks reaches 1790 ℃. It is also possible to add different ingredients of raw materials to produce different materials and composite refractory bricks.
From the perspective of large refractory bricks, if the aluminum content exceeds 48%, they can be called high aluminum bricks. There are also high aluminum bricks with different aluminum contents of 55%, 65%, 75%, 80%, and 85%, which can be used in furnace lining at different temperatures. .
Physical and chemical index of large refractory bricks
|
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:
Factory introduction
Zhengzhou Caihua Kiln Masonry Installation Co., Ltd, be called for short of CH Refractories was founded in 1984, have advanced process equipment and raw material preparation system.
A full set of refractories conventional testing equipment, can ensure the quality before sending to customers. Annual production of a variety of shaped and unshaped refractory materials 120,000 tons.
CH Refractories mainly produce refractory materials for metallurgical, coking, cement industry, electric power industry, chemical and general industrial furnaces. The refractory products exported to Middle east, South America, Middle Asia, Southeast Asia, Africa and other regions.
FAQ
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Physical and chemical index of large refractory bricks
|
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 |
