Briefly describe the characteristics of hot Sale corundum br

The characteristics of corundum bricks used in refractory materials mainly include these characteristics:

 

1. Higher strength and wear resistance;

 

2.Erosion and penetration of acid-resistant slag: all kinds of corundum main crystal phase is a-Al2O3, with good resistance to acid slag erosion and penetration. The slag produced during the iron making process is generally acidic slag with a high SiO2 content and a low CaO content. Al2O3 based refractories are commonly used in the ironmaking industry as linings, such as high alumina bricks for blast furnace bodies, Al2O3-SiC-C refractories for cast iron trenches (casting and ramming), and mud (Al2O3-SiO2-SiC). -C quality), ladle and torpedo, etc. Al2O3-SiC-C refractories (castings and refractory bricks).

3.Material and performance diversity: corundum main crystal phase is a-Al2O3, can be combined with many oxides and non-oxides, improve some of its own properties, such as thermal shock resistance, slag resistance (acid or alkaline ) Erosive and so on. It is combined with SiO2 to form a corundum mullite refractory material, which is combined with MgO to form a corundum-spinel refractory material, which is combined with zircon sand (ZrO2 and SiO2) to form an Al2O3-SiO2-ZrO2 refractory material, and silicon carbide and Carbon composite to form Al2O3-SiC-C refractory materials, etc.;

 

4.The diversity of the combination, corundum and various binders have good compatibility, can use a variety of bonding methods, such as high temperature sintering, low temperature bonding, etc., can give different properties of the material.