Low Porosity Brick

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Product Description:

Specifications

low iron and low porosity and high density

material

HA65

FC40

FC35

FC30

ap%

≤17

≤15

≤15

≤15

bd g/cm3

≥2.6

≥2.25

≥2.2

≥2.15

ccs  Mpa

≥60

≥45

≥40

≥30

rul  °C

≥1520

≥1400

≥1350

≥1300

AL2O3 %

≥65

≥40

≥35

≥30

Fe2O3   %

≤1.7

≤1.7

≤1.7

≤1.7

SiO2    %

≤31

≤56

≤61

≤66

Item

Index

volume density g/cm3

≤1.2

service temperature/ C°

1350

thermal conductivity 1200°C/ w/m.k

≤0.5

(1400°C×12h)

Heating permanent line changes/ %

-0.8~0

compressive strength under high temperature/ MPa 1200°C

≥2.8

compressive strength under normal temperature/ MPa

≥5

(0.01MPa×0.5%)°C

≥1450

Item

Index

volume density g/cm3

≤1.60

service temperature/ C°

1400

thermal conductivity 1250°C/ w/m.k

≤0.61

(1400°C×12h)

Heating permanent line changes/ %

0~-0.5

compressive strength under high temperature/ MPa 1250°C

≥6

compressive strength under normal temperature/ MPa

≥12.0

Item

Index

volume density g/cm3

≤1.90

service temperature/ C°

1400

thermal conductivity 1250°C/ w/m.k

≤0.80

(1400°C×12h)

Heating permanent line changes/ %

-0.5~0

compressive strength under high temperature/ MPa 1250°C

≥12

compressive strength under normal temperature/ MPa

≥30

Refractoriness under load(0.01MPa×0.5%)°C

≥1450


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Q:What is the silica refractory products?
High silicon content in high temperature expansion sintering temperature between 1390-1410 in furnace arch
Q:Is the quality of brick made of small-sized self insulation block equipment the same as that of large block brick equipment?
In fact, brick and tile production is only a different production, the quality of brick produced is the same, from the silver horse experience
Q:What is the advantage of the ceramic fiber material compared with the refractory brick?
Ceramic fiber material is heavier than refractory bricks, property of machinery operation, low heat capacity, and has high anti-stretchability and good thermal shock resistance, low thermal conductivity make its thermal insulation effect is ten times than refractory brick, it won't has crack in sudden coolness and heat, and the construction is much easier than that of refractory brick, not delaying the production.
Q:What are the main raw materials of refractory brick and runner brick?
Category of refractory , runner brick mainly is clay brick
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.
Q:What is acid proof brick
The main component of acid resistant ceramic tile is silica, which forms a large amount of andalusite under high temperature calcination, which is a kind of material with high acid resistance. The acid proof brick structure, low water absorption, so at room temperature are resistant to alkaline medium at any concentration, but not resistant to high temperature molten alkali. Acid resisting brick contains more than 70% silicon dioxide, and is made by sintering. It is used in acid chemical ditch, acid well, acid storage storehouse and acid loaded big impact ground.
Q:What should be paid attention when the refractory brick kiln furnace reaches a certain service life and will be removed?
Q:What are the type, location and the physical and chemical effects of the refractory brick used in the cement rotary kiln?
And T209
Q:Which is faster for heat transfer between corundum bricks and high alumina bricks
For example: 75 high aluminum and 43 clay bricks, 75 single weight 4.5kg or more. 43 3.65kg or so, the use of temperature 75, high aluminum in about 1520, 43 of brick 1430 or so, the color of 75 pan white, 43 of the Loess color. In short, the difference is great.
Q:What is the difference between corundum and high alumina??
The main components of high alumina brick are high alumina bauxite, mullite and partial corundum sand.

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