High Alumina Brick Insulating Fire Brick for Foundry Furnace

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
1 m.t.
Supply Capability:
2000 m.t./month

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Description of High Alumina Brick

High Alumina Brick Insulating Fire Brick for Foundry Furnace is widely used in metallurgy, petroleum, chemical industry, building materials, machinery processing, military, etc of thermal technology equipment. High Alumina Brick is widely used for MgO Reduction Furnace, Blast furnace, Hot Blast Stove, Tunnel kiln , Steel Ladle, Steel smelting furnace, Coke oven,chimney, Waste incinerators, Casting products, Boilers, Cement kilns, Carbon furnace, Glass kilns and a variety of furnace linings and thermal equipment.etc.

 

Specifications for High Alumina Brick

 

Item

Fireclay brick

High Alumina Brick

SK32

SK34

SK35

SK36

SK37

SK38

Al2O3  (%)  ≥

35

42

48

55

65

75

Refractoriness (oC) ≥

1670

1730

1750

1770

1790

1790

Refractoriness under Load, oC,0.2MPa ≥

1250

1300

1420

1470

1500

1520

Linear Change(%),oC×2h

1350

1350

1450

1500

1500

1500

-0.5~0

-0.5~0

-0.4~+0.1

-0.4~+0.1

-0.4~+0.1

-0.4~+0.1

Porosity (%)≤

24

22

20

20

19

19

Cold Crushing Strength, MPa≥

20

30

39.2

44.1

49

53.9

 

 

Features of High Alumina Brick

Low thermal conductivity, good thermal insulation performance.

Long service life, easy operation, could be shaped freely

Product specification: standard form, normal standard, shaped and special shaped bricks.

Can be used in various kilns because of its cheapness and general tray package. Among all of the refractory materials, it is the most widely used.

 

Typical Application of High Alumina Brick

Furnaces of metallurgy industry, heat treatment furnace.

Furnaces of chemical industry and construction industry.

Furnace of incineration of garbage, recirculating fluidized bed furnace .

 

 

 

 

 

 

 

 

 

 

 

 

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Q:What materials are used for roof insulation?
The other one is inorganic insulation materials, such as Portland, rare earth insulation, the thickness should be 5 cm or more, up to the high cost of auxiliary materials of construction, to reinforce, new inorganic insulation material, the material thickness, on the line of 2-3 cm, direct smear on the top of the house, without auxiliary material, than the price of wool, high aluminum silicate cotton.
Q:What are the high aluminum bricks made of?
It's OK to use corundum bricks and alumina hollow ball bricks to build a furnace,
Q:How to reduce the harm caused by two times mullite in high alumina refractory material
Prolong the sintering time and adjust the aluminum content of the high alumina brick.
Q:How does the physicochemical index change when the high alumina brick is used at high temperature?
If the range of softening temperature exceeds the load, the constants of other physical and chemical indexes will also increase or decrease.
Q:How much is one ton / ton of high alumina refractory brick?
The market price of about super high aluminium brick price at 3000 yuan / ton, a high aluminum brick at around 2500 yuan / ton, two high aluminum bricks at around 2100 yuan / ton three grade high alumina bricks at around 1850 yuan / ton for reference, choose to buy the area is not the same as the prices are not the same.
Q:Application characteristics of high alumina brick
Load softening temperature. The softening temperature of high alumina brick products decreases with the increase of silica and alkali metal oxide content, but is higher than that of clay brick products, which is about 1420 - 1530 degrees centigrade. Al2O3. The softening temperature of corundum brick with content greater than 95% can reach above 1600 DEG C.
Q:What kinds of minerals are there in the five major categories of ore crystal chemistry?
Sulphide. A total of more than 200~300 kinds, followed by the type of silicate minerals, the weight of 0.25% of the crust. Chang Fu is an important nonferrous metal deposit, which is an important source of copper, lead, zinc, antimony and so on. It is of great economic value. The main features are: metal luster, color, streak is deep, low hardness, good thermal conductivity, than the major. Another feature is that because sulfides are often associated with magma, it is very easy to oxidize under the surface supergene action. Except for pyrite (6 ~ 6.5 hardness), the hardness is very low. Such minerals pyrite, chalcopyrite, galena, FeS2 CuFeS2, PbS, Sb2S3, stibnite sphalerite molybdenite, cinnabar HgS MoS2.
Q:What are the requirements for Rubble backfill height?
1, filling thickness is not greater than 50cm.2, filling, the use of layered filling.
Q:What are ordinary bricks, refractory bricks, hollow bricks?
Hollow brick is divided into cement hollow brick, clay hollow brick, shale hollow brick. In March 2011 Yunnan Yingjiang earthquake occurred in 5.8, the use of cement hollow brick houses collapsed and killed several people, due to safety concerns that Yunnan intends to disable the cement brick, Shandong Qingdao in the construction of real estate has also been halted the use of cement hollow brick. Professional claims in the construction industry argue that the prohibition of the use of such statements is unscientific and unprofessional. Misleading the public, it must be corrected. Hollow brick is only a kind of building material, and it is no problem to use it in scientific way. Hollow brick in use is very scientific, high quality requirements, the investigation of the foundation is suitable for the use of hollow bricks, how to design, construction, cement and other related ingredients, there are no problems. According to strict procedures, scientific use, strict implementation of relevant national standards, the use of qualified hollow bricks, there is no problem. Similarly, if the use of solid bricks does not strictly comply with the relevant standards of the state, the same will be a problem.
Q:What is the content of free silica in the refractory bricks of high alumina bricks?
Refractory powders are not rich in free silica in varying degrees

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