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Ordinary magnesia-chrome bricks

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Characteristic:
Ordinary magnesia chrome bricks are refractory products containing magnesium oxide (MgO) and chromium oxide (Cr2O3) as the main components, and periclase and spinel are the main mineral components. This type of brick has high refractoriness, high temperature strength, strong resistance to alkaline slag, excellent thermal stability, and certain adaptability to acidic slag. The main raw materials for the manufacture of magnesia chrome bricks are sintered magnesia and chromite. The purity of the magnesia raw material should be as high as possible. The requirements for the chemical composition of the chromite ore are: Cr2O3: 30-45%, CaO: ≤ 1.0-1.5%.
Application:
Ordinary magnesia chrome bricks are mainly used in metallurgical industries, such as building flat furnace tops, electric furnace tops, furnace refining furnaces, and various non-ferrous metal smelting furnaces. The high-temperature part of the ultra-high-power electric furnace wall is cast-cast magnesia-chrome brick, and the high-erosion area of the refining furnace outside the furnace is made of magnesia-chrome brick made of synthetic material. The high-erosion area of the non-ferrous metal flash smelting furnace is made by melting cast magnesia-chrome brick and synthetic material. Magnesia chrome bricks. In addition, ordinary magnesia chrome bricks are also used in cement rotary kiln firing zones and glass kiln regenerators.

AVAILABLE SIZES

Technical Indicators


Index item

CJ-MgCr-20

CJ-MgCr-16

CJ-MgCr-12

CJ-MgCr-8

MgO,%,

40

45

55

60

Cr2O3,%,

20

16

12

8

Density, g/cm3

3.10

3.10

3.05

2.95

0.20 MPa Load softening start temperature, ≥℃

1650

1600

1580

1550

Apparent porosity %,

19

19

22

22

Normal atmospheric temperature Compressive strength ,MPa,

30

30

30

30


Tel: 0086-533-3190823

caojian@cj-ceramicfiber.com


 

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