Dolomite Brick magnesia calcium brick for Steel ladle,Aod,VOD

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Dalian
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TT or LC
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1 m.t.
Supply Capability:
2000 m.t./month
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Product details
Dolomite Brick,magnesia calcium brick used for Steel ladle,Aod,VOD.

Magnesia-Calcium bricks are made of two-step burned magnesia-calcium sands and high pure magnesia. After high pressure shaping, high temperature burning and paraffine vacuum dipping. It has good high temperature creep-resistance and slag resistance. It is the best materials for AOD, VOD,ladle.

 

Dolomite brick/Mag Calcium Brick Product Data

Type

LKMG15

LKMG20

LKMG25

LKMG30

LKMG40

LKMG50

MgO(%)

80.3

76.3

70.3

66.3

56.3

43.3

CaO(%)

17

21

27

31

41.0 

54

Al2O3(%)

0.5

0.5

0.5

0.5

0.5

0.5

Fe2O3(%)

0.7

0.7

0.7

0.7

0.7

0.7

SiO2(%)

1.3

1.3

1.3

1.3

1.2

1.3

Bulk density(Kg/m3)

3030

3030

3030

3030

3000

2930

Apparent porosity%

13

12

12

13

13

12

Cold Crushing Strength (MPa)

80

90

80

80

80

70

Refractoriness Under Load 0.2MPa℃

1700

1700

1700

1700

1700

1700

Rupture strength (Mpa)

2.5-4.5

2.5-4.5

2.5-4.5

2.5-4.5

2.5-4.5

2.5-4.5

Reheat test,Permanent linear change (%)

– 0.35

– 0.61

Thermal conductivity(W/m.k)-1

3~4

3~4

3~4

3~4

3~4

3~4

Thermal expansion(%)

800℃

0.8~1.0

0.8~1.0

0.8~1.0

0.8~1.0

0.8~1.0

0.8~1.0

1200℃

13.5~1.6

13.5~1.6

13.5~1.6

13.5~1.6

13.5~1.6

13.5~1.6

1200℃

1.8~2.0

1.8~2.0

1.8~2.0

1.8~2.0

1.8~2.0

1.8~2.0

 

 

Application of Magnesia Alumina Carbon Brick

Currently dolomite bricks/magnesia calcium brick are used as refractory lining of treatment and casting ladles in many steel plants worldwide. Thanks to its low oxidation potential, does not transfer oxygen to the liquid steel, therefore it makes desulphurization easier, it is highly compatible with basic slag, it increases the yield of Fe-alloys and can grant long service life at optimal refractory costs. The AOD and VOD process are nowadays the most common ways to produce stainless and alloy steel grades. The dolomite and dolo-magnesite refractories are considered as the most common lining for such a metallurgical process, especially for their attitude to desulphurization, to work with silica-based slag and to achieve the best performances in terms of costs and service life. We offers a wide range of fired and C-bond dolomite-based bricks, suitable for many metallurgical treatments.

CNBM International Corporation

We have 13 refractory plants and annual production capacity 500,000 tons, 15 professor level senior engineers,239 engineers,5 senior experts committed Iron & Steel industry.
We produce Magnesia Carbon Brick,Magnesia Brick,High Alumina Brick,Fireclay Brick,Corundum Brick,Corundum-Mullite Brick,Magnesia Chrome Brick,Silica Brick,Silicon Nitride Bonded SiC Brick,Monolithic Refractories.

We have 263 patents, 5 national key new product and 69 provincial and ministerial scientific achievements.

CNBM International is highly recognized by its business partners and clients all over the world and has established good business relationship with the customers in over 160 countries and regions all over the world.

Q:What is the ratio of magnesia refractory bricks to brine? For example, what is the difference between the 97 and 95 with 92 brick brick brick material mixed with brine ratio?
Different grades of burned magnesia brick is mainly made of magnesia binder with different taste, there is not a big difference. However, the physical and chemical properties of binders should be controlled well!
Q:Magnesite chrome brick, magnesia chrome brick indicators? What is the price?.
According to the actual situation, design the brick you need, and the price of brick is determined by the index.
Q:Refractory brick, high alumina brick, magnesia chrome brick, magnesia brick, clay brick, which type of high temperature refractory brick?
The super high alumina brick in high alumina refractory brick has the highest refractoriness, and the corresponding production cost is higher.
Q:Manufacture of various refractory magnesia brick mainly comes from Magnesium Oxide, what kind of ore?
Manufacture of various refractory magnesia brick Magnesium Oxide, mainly from magnesite.
Q:High purity magnesia brick masonry mortar for what?
You try a mixture of aluminum phosphate. It itself is the main component of aluminum, which can not cause pollution. We use high temperature electric stove to bond with this.But this 800 degree won't be sintered. It won't sinter until more than 1000 degrees.
Q:Magnesia brick
Mainly used for basic open hearth, furnace bottom and furnace wall oxygen converter steelmaking, the permanent lining of non-ferrous metal smelting furnace, high temperature tunnel kiln, calcined magnesia brick and cement rotary kiln, furnace bottom and furnace wall, glass furnace regenerator etc..
Q:The index of magnesia brick
Room temperature compressive strength≥(MPa)(15-25-)24.5-24.5-24.5-24.5-40-40-40
Q:How do you differentiate between the two clearly? Where is the key? Thank you
Burnt magnesia brick is made of high quality sintered magnesia as main raw materials, paper pulp as binder. After mixing and high pressure molding, it is fired in a high temperature tunnel kiln over 1550 degrees celsius. It has good thermal stability, corrosion resistance and spalling resistance. Widely used in converter, arc furnace and other industrial furnace lining refractory.Fused magnesia brick brick has compact structure, high mechanical strength, low impurity content, mainly used for the storage of large glass kiln
Q:Combined with the ordinary clay brick and magnesia brick as an example, the existence of impurities in minerals and refractories production main components of the formed liquid relative what affect the performance.
Also known as clay brick brick, is a man-made small bulk building, clay brick clay (including shale, coal gangue powder) as the main raw material, through mud processing, molding, drying and roasting, solid and hollow.
Q:With different capacitance magnesia brick brick
Fused magnesia brick brick has compact structure, high mechanical strength,It is mainly used for thermal storage of large glass furnaceHigh temperature area of the room.

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