Chrome Corundum Brick
Chrome corundum brick is made of corundum and fused chromium oxide as the raw material, mixed with micro powder and other additive, and then through mixing, shaping, drying, sintering in the high temperature shuttle kiln. chrome corundum block is widely used for linings of high temperature furnaces or kilns in many industries of steel, building material, non-ferrous smelt, light industry and chemical industry.
Chrome Corundum Brick Description
Chrome corundum brick refers to a corundum refractory product containing Cr2O3. At high temperature, Cr2O3 and Al2O3 form continuous solid solution, so the high temperature performance of chrome corundum products is better than that of pure corundum products. Chrome corundum fire brick is used in petrochemical gasifier should be low silicon, low iron, low alkali and high purity, and should have high density and strength.The content of Cr2O3 is in the range of 9%~15%
Chrome Corundum Brick Features
.High fire resistance,
.Big intensity,
.Good wear resistance,
.Good thermal shock resistance,
.Good acid and alkali resistance,
.Good chemical stability.
Chrome Corundum Brick Manufacturing Process
Chrome corundum brick is processed with post-al2o3, adding a certain amount of chromium oxide powder and fine powder of chrome corundum clinker, which are formed and burned at high temperature. The content of chromic oxide in sintered chrome brick is generally lower than that of fused cast chrome corundum brick. Chrome corundum block also use mud casting method of preparation, the alpha Al2O3 powder and chrome oxide powder mixing, add glue and organic adhesives made from thick mud, at the same time part of chromium corundum clinker, by grouting into adobe, firing again.
Chrome Corundum Brick Specifications
| Chrome Corundum Brick | |||
| Item | Index | ||
| Chemical Composition % | Al2O3 | ≥92 | |
| CaO | ≤1.2 | ||
| SiO2 | ≤1.0 | ||
| Fe2O3 | ≤0.3 | ||
| Cr2O3 | ≥3 | ||
| Na2O | – | ||
| ZrO2 | ≥3 | ||
| Cold Crushing Strength (Mpa) | ≥180 | ||
| Apparent Porosity (%) | ≤15 | ||
| Refractoriness (℃) | ≥1900 | ||
| Modulus of Rupture at High Temperature 1250℃ (Mpa) | ≥9.5 | ||
| Bulk Density (g/cm3) | ≥3.25 | ||
| Reheat linear change 1600℃×3h (%) | ≤±0.2 | ||
| 0.2Mpa Refractoriness Under Load T0.6 (℃) | ≥1680 | ||
Use of Chrome Corundum Brick for Furnace
Chrome corundum brick 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 style walking beam furnaces, and also as the interior for destructors, In the linings of carbon soot furnace and copper smeling furnace tapping platform of rolling mill furnace, reheating furnace skid rail.
Chrome Corundum Brick Manufacturer
RS refractory manufacturer is a leading provider of refractory products, and a range of services and solutions, and chrome corundum fire brick has been sold to many countries and get good feedback. If you need chrome corundum brick, please feel free to contact us, best service and reasonable solutions will be provided for you, and our sales will reply you as soon as possible.
