| Product Name | MgO (%) | SiO2 (%) | Al2O3 (%) | Fe2O3 (%) | CaO (%) | Loi (%) | BD (g/cm3) | Package |
| DBM85 | 85 MIN | 7.0MAX | 0.7MAX | 0.6MAX | 5.0MAX | 0.8MAX | 3.10MIN | TON BAG (1.25) |
| DBM90 | 90 MIN | 4.8MAX | 1.0MAX | 0.7MAX | 4.0MAX | 0.6MAX | 3.15MIN | TON BAG (1.25) |
| DBM92 | 92 MIN | 4.8MAX | 1.0MAX | 0.7MAX | 3.5MAX | 0.5MAX | 3.15MIN | TON BAG (1.25) |
Dead Burned Magnesia (DBM)
85%-92% Dead burned magnesiais mainly made of natural magnesite ore with 46% content, which is calcined by high temperature kiln at about 1400℃-1800℃.
Application: Dead burned magnesia is mainly used as raw material for making magnesia bricks and producing amorphous refractory materials. The finished products are used in steel making, electric furnace bottom and ramming furnace.
The main varieties of dead burned magnesia have 85%-92% content, these varieties are mainly selected 46.5% to magnesite, sintered kiln calcination heating to 1400-1800 ℃ Mg(CO3) completely decomposed, generating magnesite, become hard reddish-brown dead burned magnesium, it has a high refractorability. Dead burned magnesia is mainly used for magnesia brick, steelmaking, electric furnace bottom and ramming furnace lining.
| Product Name | MgO (%) | SiO2 (%) | Al2O3 (%) | Fe2O3 (%) | CaO (%) | Loi (%) | BD (g/cm3) | Package |
| DBM95 | 95 MIN | 2.0MAX | 0.5MAX | 0.9MAX | 2.0MAX | 0.1MAX | 3.18MIN | TON BAG (1.25) |
| DBM96 | 96 MIN | 1.5MAX | 0.5MAX | 0.5MAX | 2.0MAX | 0.2MAX | 3.2 MIN | TON BAG (1.25) |
| DBM97 | 97 MIN | 1.5MAX | 0.5MAX | 0.2MAX | 1.5MAX | 0.2MAX | 3.25 MIN | TON BAG (1.25) |
94%-98% Dead burned magnesia
94%-98% Dead burned magnesia is made of natural super-grade magnesite ore. It is made by light burning, fine grinding, pressing balls and calcining in ultra-high temperature oil shaft kiln. It is a high-quality raw material for brick making and uncertain refractories.
The main varieties of dead-burned magnesia have 96% content and 97% content. These kinds of dead-burned magnesia mainly use magnesite ore with more than 46.5% of the content. When heated to 1400-1800°C by sintering kiln, Mg(CO3) is completely decomposed., to generate periclase, which becomes hard reddish-brown dead-burned magnesia, which has high refractoriness. Dead burnt magnesia is mainly used for magnesia bricks, steelmaking, electric furnace bottom and ramming furnace lining.
| Physical And Chemical Indicators | |||||
| Brand Properties | MD92 | MD95 | MD97 | MD98 | |
| Bulk densiy(g/cm3) | 2.90 | 2.95 | 3.00 | 3.00 | |
| Refractoriness under load T2(℃) | 1550 | 1650 | 1700 | 1700 | |
| Apparent Porosity(%) | 18 | 16 | 15 | 15 | |
| Cold Crushing Strength(MPa) | 55 | 60 | 70 | 80 | |
| Thema shock resistance 950deg air cool (times) | 10 | 10 | 10 | 10 | |
| Composition(%) | MGO | 92 | 95 | 97 | 97.5 |
| CaO | 2.5 | 2.0 | 1.6 | 1.2 | |
| SiO2 | 3.5 | 2.5 | 1.2 | 0.6 | |
Magnesia brick
Features:
Magnesia Brick has high refractoriness, usually refractoriness above 2000℃.
Good high temperature fire resistance under load
Has excellent slag wear resistance and higher bulk density
Lower apparent porosity
Lower impurity content
Applications:
Magnesia Brick is mainly used for furnace lining, furnace bottom and furnace wall, oxygen converter permanent lining, non-ferrous metal smelting furnace, high temperature tunnel kiln, calcined magnesia and cement rotary kiln lining, furnace bottom and furnace wall, glass furnace regenerative lattice Bricks, etc.
| Index Item | RS-A | RS-80 | RS-85 | RS-88 |
| MgO(%) | 86 | 85 | 88 | 90 |
| Al2O3(%) | 5 | 7 | 6.5 | 6.5 |
| SiO2(%) | 3.2 | 4 | 2.4 | 1.2 |
| CaO(%) | 1.6 | 1.5 | 1.3 | 1.2 |
| Fe2O3(%) | 3.7 | 1.7 | 1.4 | 1.0 |
| Apparent Porosity(%) | 16~20 | 17 | 17 | 17 |
| Density Bulk(g/cm3) | 2.85~3.0 | 2.93 | 2.93 | 2.94 |
| Cold Crushing Strength(Mpa) | 41 | 50 | 50 | 55 |
| 0.2Mpa Under Load Refractoriness(℃) | ≥1550 | 1610 | 1650 | 1700 |
| Thermal Shock Resistance(1100°℃, water, quenching cycle) | 3~6 | 3~6 | 3~6 | 3~6 |
Magnesia alumina brick
Introduction
Magnesia aluminum bricks use magnesia as the main raw material, magnesia brick and aluminum oxide as the co-milled fine powder as the matrix, the alkaline products which are fired at high temperature are called magnesia alumina bricks.
Magnesia aluminum refractory bricks have good thermal shock resistance, high mechanical strength at high temperatures and high softening temperatures.
Magnesium aluminum fire brick has good slag resistance, high temperature performance and thermal stability, and the price is cheaper than magnesium spinel.
Application
Magnesium aluminium bricks used in ladle, mixed iron furnace, glass kiln regenerator, steel reverberative kiln roof, steel making furnace permanent lining and refractory industrial high temperature kiln.
NAVIGATION
+86 189 5430 6666
+86 189 5430 6666
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