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Magnesia Chrome Brick IntorductionMagnesia-chrome bricks are basic refractory materials primarily composed of magnesium oxide (MgO) and chromium trioxide (Cr₂O₃). They are typically made from high-purity sintered magnesia and chrome ore, mixed in a specific ratio, formed under high pressure, and fired at temperatures between 1500°C and 1800°C. Magnesia-chrome bricks offer both high refractoriness and excellent resistance to thermal shock and slag erosion.
Features
Magnesia Chrome Brick Features
1. High Refractoriness: Due to their primary components being high-melting-point magnesium oxide (2800°C) and chromium oxide (2435°C), magnesia-chrome bricks typically have a refractoriness exceeding 1850°C. 2. Excellent Resistance to Alkaline Slag Attack: Magnesia-chrome bricks are alkaline refractory materials with strong resistance to alkaline slag (such as CaO slag from cement rotary kilns and slag from steel ladles). 3. Excellent Thermal Shock Resistance: Compared to pure magnesia bricks, magnesia-chrome bricks contain a mineral phase with a different thermal expansion coefficient due to the addition of chromium ore. This increases microcracks, effectively absorbing thermal stress and significantly improving thermal shock resistance. 4. High High-Temperature Strength: Magnesia-chrome bricks maintain excellent structural strength and creep resistance even at high temperatures, and are not susceptible to softening and deformation. 5. Certain kiln lining performance: In the cement rotary kiln, it can react with cement raw materials to form a solid "kiln lining" on the surface to protect the brick itself from wear and erosion.
Advantages of Magnesia-Chrome Bricks 1. Balanced Performance: They perfectly combine the high refractoriness of magnesia bricks with the thermal shock and corrosion resistance of chrome bricks, with no significant performance disadvantages. 2. Wide Adaptability: They are well-suited to alkaline operating environments, making them an ideal choice for critical parts in many high-temperature industrial kilns. 3. Long Life: Their excellent corrosion and spalling resistance ensures a long service life even under demanding operating conditions, reducing kiln downtime and maintenance costs.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2011
Total Annual:
20000000-50000000
Employee Number:
101~150
Ecer Certification：
Verified Supplier
Our company can provide not only the domestic and foreign customers excellent quality of high-temperature thermal insulation material, but also the first-rate service including professional furnace lining design, installation supervision, engineering construction etc.
&nbs... Our company can provide not only the domestic and foreign customers excellent quality of high-temperature thermal insulation material, but also the first-rate service including professional furnace lining design, installation supervision, engineering construction etc.
&nbs...
