Different Application Fields Of Corundum Block And Chrome Corundum Block
Date:2015-11-26 20:30 From:Zhengzhou Sunrise Refractory Author:admin
Corundum block has been widely used in the lining of petrochemical thermal device which contains synthesis of ammonia gas furnace, ethylene engineering gas furnace, carbon black reaction furnace, etc. which can bear high temperature, high pressure chemical erosion and mechanical wear, and it is a special refractory with Al2O3 as the main component. As to the microstructure of corundum block, the main mineral is corundum, particle is megacrysts and the shape is breccia. Particles and matrix are well combined, and there is a small amount of micro cracks, which is a continuous distribution. The matrix is composed of columnar corundum and micro binding phase, part of which is columnar crystal with the diameter and the length ratio of 3-4.
Corundum block is widely used in lining of ovens of petrochemical industry; bottom of steel rolling mill and in the second-stage converters of the 300000t ammonia synthesis furnaces, steel notch. It is mainly used in key parts of the industrial furnace that require high abrasion and temperature resistance.
Chrome corundum block is made of pure Al2O3 and Cr2O3, compared with corundum block, it has more excellent performance, such as refractoriness, load softening temperature deformation, flexural strength, high-temperature creep, high temperature stability and slag resistance. The research of chrome corundum block began in 1989, and it has been basically successful and has been put into production.
Chrome corundum block has been used in serious corrosion position of lower part of synthetic ammonia residue gasification furnace and the throat part of carbon black reaction furnace, and the effect is good. Chrome corundum block is mainly used in areas that require high abrasion and temperature resistance, such as gliding rail bricks in steel pusher metallurgical furnaces, the tapping platform (tapping spout) style walking beam furnaces, and also as the interior for destructors, In the linings of carbon soot furnace and copper smelling furnace tapping platform of rolling mill furnace, reheating furnace skid
Corundum block is widely used in lining of ovens of petrochemical industry; bottom of steel rolling mill and in the second-stage converters of the 300000t ammonia synthesis furnaces, steel notch. It is mainly used in key parts of the industrial furnace that require high abrasion and temperature resistance.
Chrome corundum block is made of pure Al2O3 and Cr2O3, compared with corundum block, it has more excellent performance, such as refractoriness, load softening temperature deformation, flexural strength, high-temperature creep, high temperature stability and slag resistance. The research of chrome corundum block began in 1989, and it has been basically successful and has been put into production.
Chrome corundum block has been used in serious corrosion position of lower part of synthetic ammonia residue gasification furnace and the throat part of carbon black reaction furnace, and the effect is good. Chrome corundum block is mainly used in areas that require high abrasion and temperature resistance, such as gliding rail bricks in steel pusher metallurgical furnaces, the tapping platform (tapping spout) style walking beam furnaces, and also as the interior for destructors, In the linings of carbon soot furnace and copper smelling furnace tapping platform of rolling mill furnace, reheating furnace skid