Steelmaking eaf partly high alumina brick

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Product Description:


       炼钢电炉顶用高铝砖

项目
item

DL—80

DL—75

BDL—80

BDL—75

Al2O3 %

80

75

80

75

显气孔率,%
A.P.

19(21)

19(21)

18(20)

18(20)

常温耐压强度,MPa
CCS

75

65

60

55

重烧线变化,%(1500℃x2h)
P.L.C

0—-0.3

0—-0.3

±0.2

±0.2

荷重软化开始温度,℃
Refractoriness

1530

1520

1530

1520

热震稳定性(1100℃,水冷)
Thermal shock (1100℃water)

提供数据
Issue actual value

8

8


Specifications:


Product features: high alumina brick to select of steelmaking furnace be yangquan super bauxite clinker asthe main raw material, after high pressure forming, high temperature sintering. The main mineral composition as corundum and mullite phase, has excellent high temperature mechanical properties and resistance to chemical attack. Especially not burning products, appearance is more accurate size, good thermal shock stability.


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Q:What kind of material is good to be laid on the kiln car, refractory brick?
It depends on the temperature. General thermal insulation brick is ok, when temperature is high, use mullite, and when temperature is not high, alumina is ok
Q:Small size black brick can replace refractory bricks for wood burning fireplace?
Absolutely not. Refractory brick's color looks like that of stone which is also very antique. Black brick can also be pasted on refractory brick. To cope with the use of refractory cement
Q:What are the factors that determine the weight of the refractory bricks?
(5) Under high temperature, the volume is stable, the inner part of brick will produce unrecoverable volume shrinkage or expansion because of the internal transformation. Therefore, masonry inner will produce stress to make the material break and peel off, and the weight of a ton of bricks is determined by the bulk density and quantity, how much is the weight of refractory bricks, refractory bricks should have the ability to resist the damage, the weight of a piece of brick is determined by the bulk density: Refractory bricks are used under high temperature for a long term: Refractory bricks in the use of the process. Cooltech refractory brick used in various high-temperature equipment: The temperature of some parts of metallurgical furnace and other industrial furnace is uneven due to rapid temperature change during operation. (3) good thermal stability: Refractory bricks should not only have a high fusion temperature, no softening deformation and collapse, causing damage to the masonry. (4) strong resistance to slag: Modern metallurgy and the other industrial furnace heating temperature is generally between l000~1800. Refractory bricks should have the performance that is not easy to melt under high temperature. Therefore. Therefore, it is subject to high temperature conditions of physical and chemical corrosion and mechanical damage, the refractory brick must have the ability to resist high temperature chemical corrosion, the volume of refractory brick is required to be stable under high temperature. (2) High-temperature structural strength, chemical corrosion of metal, but also should have been built in the stove brickwork load or other mechanical vibration, often has the high temperature slag, so the refractory materials performance should meet the following requirements: (1) high refractoriness
Q:What are the main raw materials of refractory brick and runner brick?
Types of refractory bricks are divided into low-grade and high-grade. generally, siliceous, semi siliceous and high aluminous runner brick brick have higher requirements. If it needs to contact melting in high temperature molten steel directly, then it is high alumina(the main raw material is clinker of bauxite with high alumina, corundum( brown corundum and white corundum), the refractoriness is high, lower than 1580 DEG C temperature, but the actual using temperature reaches 1630 DEG C
Q:What is the refractory temperature of refractory bricks?
First look at the used parts of refractory brick, anti stripping performance, these are the most basic performance factors, the refractory temperature of high alumina brick is 1770 -1790 degree, the refractory temperature of clay brick is 1380-1570 DEG C, record the anti acid corrosion data of refractory bricks, the compressive strength of refractory bricks, at the same time, you should analyze each part of the furnace pH index and sintering temperature of working. When purchasing refractory bricks, you need to pay attention to many factors, high temperature creep property, softening temperature under a fixed load, 6548, volume stability at high temperature. Because the production of the product is affected by the weather and fuel energy, etc.. 186, select the suitable refractory bricks
Q:What should be paid attention when the refractory brick kiln furnace reaches a certain service life and will be removed?
Q:The form of boiler furnace wall
Q:can the refractory sand be used to make refractory bricks?
refractory bricks can be used as a refractory sand after crushing , no strength required results in the lower intensity, but the temperature is not high, so it is not recommended, but refractory bricks after the high temperature is fine because its properties are changed
Q:What matters should be noticed when using clay refractory bricks in a glass kiln?
There are a variety of products for the production of shaped and unshaped refractory clay, such as blast furnace insulation and high alumina bricks. Brick products include refractory clay bricks, plastic materials for overload, refractory clay and high alumina casting materials, etc.. In the amorphous part, if to support the horizontal induction furnace and the straight induction furnace lining, such as refractory clay and high alumina plastic
Q:how much fireclay is needed for 10000 refractory bricks?
The amount of mud used for T-3 refractory brick is 0.3KG. if the tiler is skillful, the furnace should have joint of 2mm.

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