Hot blast stove with low creep thermal shock high alumina brick

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       热风炉用低蠕变耐热震高铝砖

项目
item

HD

HS

HB

Al2O3 %

53

57

65

Fe2O3 %

1.7

0.8

0.8

TiO2 %

0.6

0.5

0.5

R2O %

0.6

0.6

0.6

显气孔率, %
A.P.

20

20

20

体积密度,g/cm3
B.D.

2.35

2.40

2.45

常温耐压强度,MPa
CCS

40

40

50

蠕变率,%(20—50h)
Creeping rate

0.2(1350)

0.2(1400)

0.2(1450)

重烧线变化,%(1400℃x4h)
P.L.C.

±0.2

±0.2

± 0.2

荷重软化温度0.5%,℃
RUL

135 0

1470

1520

抗震稳定性(1100℃,水冷)
Thermal shock(110o℃water)

20

20

20

Product features: hot blast stove with low creep heat shock high alumina brick using selected andalusite, sillimanite and corundum, mullite, high grade bauxite and flint clay as the main raw material, after high pressure forming, high temperature sintering. Products of low content of impurities, good thermal stability, high temperature creep performance is good, is the present domestic comprehensive type Dutch type hot blast stove technology to the characteristics and hot blast stove with refractory with Chinese characteristics.


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Q:How good is the hardness of corundum refractory brick?
The basic materials of corundum refractories are fused corundum or sintered corundum. the refractory brick containing more than 90% of Al2O3 is called corundum refractory brick. so, corundum refractory brick. Corundum has a high hardness (9 level of Mohs hardness) such as zirconium corundum refractory brick. Corundum refractory brick is resistant to acid well and melting point is also high, also known as pure alumina refractory brick products, , it has a good effect. These are closely related with the structure of the Al - 0 key, titanium corundum refractory brick, and other basic slag. It is used in high temperature oxidizing atmosphere or in reducing atmosphere. the metal and glass solution have good stability. a-Al2O3 is the main material of high temperature refractory brick and high temperature electrical insulating material .
Q:Can refractory be used to sharpen knife?
Many factories build a smelting furnace by using this kind of bricks. A special knife grinder can be used to sharpen knife, can on 1. They are sizing and non-sizing refractory bricks respectively. Refractory brick is now a lot of fields and industry will introduce one of the raw materials. Products are divided into two different types, refractory brick as a high temperature resistance of the raw materials. In simple terms, working temperature is 770 DEG C, 580 C and 1, of course, refractory bricks also can be used to sharpen knife, use smooth brick to sharpen, need to choose high hardness
Q:Is there any special requirements for the building blocks of the smoke and gas wells, how about the refractory bricks?
There are no special requirements. Not necessarily need refractory bricks, red bricks are ok. The building size of the flue is according to the smoke exhaust rate.
Q:Can common cement mortar be used to build the lining of chimney refractory brick?
No. You have used fire bricks, which shows there is a certain temperature inside, you'd better use refractory cement
Q:Mainly use the raw materials inside refractory bricks,
Go to the refractory factory to buy some refractory mortar that has the same texture of refractory bricks, the general boiler use clay refractory mortar.
Q:The form of boiler furnace wall
Q:can the red brick be used as refractory brick?
1200---1750 of the refractory bricks, below 1000 degrees of red brick brick is ok.
Q:The furnace refractory bricks are burnt into ash, what material can resist higher temperature than the refractory brick
refractory bricks, common clay brick, clay brick, high alumina brick and corundum brick
Q:What kind of refractory brick is suitable for 24*28m rotary kiln of 5,000 tons?
Magnesia spinel brick and magnesia hercynite brick
Q:How to test the various components of the refractory brick?
It is difficult to distinguish if it is mixed together, fully smashing and mixing. Then assay. Or testing after smashing and separating.

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