Refractory cement is made from high-quality bauxite and high-quality lime , mixed in a certain proportion to form a suitable amount of raw materials.
After sintering, the clinker mainly composed of aluminate is obtained, and then ground it into fine powder to make a water hardening cementitious material with refractory properties.
The fire resistance of refractory cement shall not be lower than 1580 degrees Celsius.
According to different compositions, it can be divided into aluminate refractory cement, low calcium aluminate refractory cement, calcium magnesium aluminate cement, and dolomite refractory cement.
(1) High refractoriness
(2) Good plasticity and bonding strength
(3) Good resistance to slag invasion
(4) Good thermal peelability
Lining of metallurgical furnaces such as blast furnaces, smelting furnaces, and converters
|
Type |
Al2O3 （%） |
SiO2 （%） |
Fe2O3 （%） |
Alkali [w(Na2O)+ 0.658w(K2O)]（%） |
S （%） |
Cl- （%） |
|
CA50 |
50~60 |
≤9.0 |
≤3.0 |
≤0.50 |
≤0.2 |
≤0.06 |
|
CA60 |
60~68 |
≤5.0 |
≤2.0 |
≤0.40 |
≤0.1 |
|
|
CA70 |
68~77 |
≤1.0 |
≤0.7 |
|||
|
CA80 |
≥77 |
≤0.5 |
≤0.5 |
High alumina fine powder is a powder material with alumina (Al2O3) as the main component.
High alumina fine powder is a powder material with alumina (Al2O3) as the main component.
Steel fiber wear-resistant castables are widely used in high temperature and wear-resistant environments in many industrial fields such as metallurgy, building materials, and chemicals.
White corundum castable is a high-quality high-temperature refractory material with high-purity alumina powder as the main raw material.
High aluminum castable refers to a refractory castable with Al2O3 content greater than 48%.
Lightweight insulation castable is a refractory with low density and excellent insulation properties.
Corundum mullite castable is a high-quality high-performance refractory material with high thermal conductivity, insulation, good chemical stability and resistance to reducing agents.
Silicon carbide castable is an amorphous refractory material with silicon carbide as the main component.
Chrome corundum castable is a high-performance amorphous refractory material composed of corundum and chromium. It has high melting point, high hardness, high stability and excellent slag resistance and wear resistance.
high alumina cement is a powder material with alumina (Al2O3) as the main component.
Plastic is an amorphous refractory material in the form of hard mud and has high plasticity.
Refractory spray coating is a kind of amorphous refractory material, which is applied to the lining of thermal equipment by spraying construction method.
Widely used in a variety of furnace front package, transfer package, ladle insulation layer...
Widely used in a variety of furnace front package, transfer package, ladle insulation layer...
High temperature and high strength repair material is a special material used to repair equipment and structures in high temperature environments.
Lining coating is a functional material used on the surface of high-temperature equipment or facilities...
High alumina poly light brick is a high quality lightweight refractory material.
Checker bricks are heat transfer media used in the regenerative chambers of blast furnaces and hot blast stoves.
