- Henan Xinhongji Refractory Material Co. Ltd.
- China Manufacturer with main products:refractory bricks ,refractory castables ,firebricks ,refractory materials ,refractory honeycomb ceramic regenerators ,refractory ceramic balls ,Calcined Kaolin Clay ,Chromium Corundum Homogenizing particle ,refractory material powder ,Mullite Homogenizing particle ,Refractory powder ,Fire Clay
Home > Products > Refractory Cement > High Quality High Resistance Calcium Aluminate Secar High Alumina Refractory Cement
High Quality High Resistance Calcium Aluminate Secar High Alumina Refractory Cement
- 20000 Ton / Tons per Month
- Tianjin/Qingdao
- T/T L/C Cash
- 10 days
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- High Purity Aluminum Oxide Refractory Ball Thermal Insulation Ceramic Sphere Balls / Bead
- High Abrasion Resistant Fireclay Heat Insulation Castables Chamotte Insulating Castables
Product Details
Brand Name: | Xinhongji Refractory | Place of Origin: | China | Model Number: | XHJ-202D003 |
Shape: | Powder | Material: | Alumina Block | CaO Content (%): | 1.0 |
MgO Content (%): | 1.0 | SiO2 Content (%): | 10~65 | Al2O3 Content (%): | 30~70 |
Refractoriness (Degree): | Common (1580°< Refractoriness< 1770°) |
Product Description
High Alumina Refractory Cements
Description:
Refractory cement is made of high-quality bauxite and high-quality lime as raw materials, which are mixed into raw materials with appropriate components in a certain proportion. Hydraulic cementitious material. The refractoriness of refractory cement is not less 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.
Refractory cement can be used to cement various refractory aggregates (such as corundum, calcined bauxite, etc.) to make refractory mortar or concrete, and be used for cement rotary kilns and other industrial kilns as linings.and can be made to low cement high alumina castable to build or repair all kinds of furnace and kilns for thermal insulation or acid erosion resistance with high strength.
Properties
High refractoriness, High refractoriness under load
High density, low porosity
Good slag resistance and corrosion resistance
High strength and wear resistance
Good resistance to flake performance
Good thermal shock stability
Scouring resistance
Good hot strength.
Chemical & Physical Index
Grade Name | CA50 | CA60 | CA70 | CA80 | ||
Chemical | SiO2 | ≤8 | ≤6 | ≤2 | ≤1 | |
Component | Al2O3 | 50~60 | 60~68 | 68~77 | 77~85 | |
Fe2O3 | ≤2.5 | ≤2.0 | ≤1.0 | ≤0.6 | ||
R2O | ≤0.4 | ≤0.4 | ≤0.4 | ≤0.4 | ||
Main crystal phase | CA | CA | CA | CA | ||
Secondary phase | CA2,C12A7,C2AS,CT | CA2,C12A7,C2AS,CT | CA2,C12A7,C2AS,CT | CA2,C12A7,C2AS,CT | ||
Residue after 325Mesh(%) | ≤15 | ≤15 | ≤15 | ≤15 | ||
Blaine (m2/kg) | ≥300 | ≥340 | ≥360 | ≥380 | ||
Initial setting time(min) | ≥30 | ≥60 | ≥30 | ≥30 | ||
Final setting time(h) | ≤6 | ≤6 | ≤6 | ≤6 | ||
Flexural strength (Mpa) | 1d | 5.5 | 2.5 | 5.0 | 4.0 | |
3d | 6.5 | 5.0 | 6.0 | 5.0 | ||
Compressive Strength (Mpa) | 1d | 40 | 20 | 30 | 25 | |
3d | 50 | 45 | 40 | 30 |
Characteristics
1. Refractory cement sets fast.
2.Refractory cement hydration heat, and heat concentration.
Packages
Packing: Export Wooden Pallets, Damp-roof bag, 25kgs / bags.
The package is designed to protect castable from humidity. However, as with all hydraulic binders, it is recommended that castable not be placed outdoors or in direct contact with the ground. When correctly stored in dry conditions, the properties of castable will remain within specification limit for at least 9 months. In most cases, its properties will be retained for over a year.
Application
High alumina cement is mainly used to configure refractory castable such as high alumina low cement castable which can build or repair furnace or kiln for heat insulation or high temperature erosion.
With the development of modern smelting technology, hot blast stoves generally adopt high air temperature technology, and the service life of hot blast stoves is required to be longer: therefore, higher requirements are put forward for the comprehensive performance of refractory materials for hot blast stoves. Damage to refractory materials used in hot blast stoves is usually caused by thermal stress, chemical attack, and mechanical loading. It is generally believed that an important reason for the damage of the hot blast stove is that the high temperature creep resistance of the refractory material is poor, resulting in collapse, deformation and cracking of the lining refractory material, thus causing widespread concern for low creep bricks for hot blast stoves.
Contact Us
- Henan Xinhongji Refractory Material Co. Ltd.
- Contact nameJacky Yan
- Phone86-371-55611337
- AddressZhongyuan District Zhengzhou,Henan
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