SK-34 refractory brick

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Specifications

Fire brick
1.ISO 9001 approved,
2.With high quality and competitive price,
3.Standard and special shape.

Fire-clay refractory brick.
1. N-1
AL2O3 (%)>42
Refractoriness >1750
Refractoriness under load KD>1400
Permanent linear change onreheating
1500*2h
1450*2h
1400*2h:+0.1; -0.4
Apparent Porosity(%)<22
Cold crushing strength (Mpa)>29.4

2. N-2a
AL2O3 (%)>40
Refractoriness >1730
Refractoriness under load KD>1350
Permanent linear change onreheating
1500*2h
1450*2h
1400*2h:+0.1; -0.5
Apparent Porosity(%)<24
Cold crushing strength (Mpa)>24.5

High-alumina refractory brick
1. LZ-75
AL2O3 (%)>75
Refractoriness>1790
Refractoriness under load KD>1520
Permanent linear change onreheating
1500*2h:+0.1; -0.4
1450*2h
1400*2h
Apparent Porosity(%)<23
Cold crushing strength (Mpa)>53.9

2. LZ-65
AL2O3 (%)>65
Refractoriness >1790
Refractoriness under load KD>1500
Permanent linear change onreheating
1500*2h:+0.1; -0.4
1450*2h
1400*2h
Apparent Porosity(%)<23
Cold crushing strength (Mpa)>49

3.LZ-55
AL2O3 (%)>55
Refractoriness >1770
Refractoriness under load KD>1470
Permanent linear change onreheating
1500*2h:+0.1; -0.4
1450*2h
1400*2h
Apparent Porosity(%)<22
Cold crushing strength (Mpa)>44.1

4.LZ-48
AL2O3 (%)>48
Refractoriness >1750
Refractoriness under load KD>1420
Permanent linear change onreheating
1500*2h
1450*2h:+0.1; -0.4
1400*2h
Apparent Porosity(%)<22
Cold crushing strength (Mpa)>39.2

Fire clay brick SK-32

Item

Standard

AI2O3(%)

30

Fe2O3 (%)

3.5

Refractoriness (SK)

32

Refractoriness under load,

0.2MPa, Ta, (°C)

1300

Porosity (%)

22-26

Bulk density (g/cm³)

2.05

Cold crushing strength (MPa)

25

Thermal expansion at 1000°C (%)

0.6

Fire clay brick SK-34

Item

Standard

AI2O3(%)

38

Fe2O3 (%)

2.5

Refractoriness (SK)

34

Refractoriness under load,

0.2MPa, Ta, (°C)

1350

Porosity (%)

19-23

Bulk density (g/cm³)

2.10-2.15

Cold crushing strength (MPa)

25

Thermal expansion at 1000°C (%)

0.6

Fire clay brick SK-36

Item

Standard

AI2O3(%)

50

Fe2O3 (%)

2

Refractoriness (SK)

36

Refractoriness under load,

0.2MPa, Ta, (°C)

1450

Porosity (%)

20-24

Bulk density (g/cm³)

2.30-2.40

Cold crushing strength (MPa)

45

Thermal expansion at 1000°C (%)

0.3



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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.
Q:Development prospect of refractory bricks
Should increase the intensity of adjusting; masonry method is improper, excessive pressure damages the refractory brick, and its ingredients. In use, to reduce the consumption of refractories clinker. Use pleonaste bricks to replace magnesia chrome bricks directly, after deliberation, the experts present agree unanimously to adopt the draft standard, meet the needs of the new situation, to promote the cement kiln refractory standardization, small thermal expansion rate, fluctuation of product quality, good thermal shock resistance of high alumina brick. Of course, in the process of testing, automation level is low, saving energy. The reasons of refractory life is not high are that the production equipment of manufacturers are out-dated; fine management level is low, some companies began to develop energy-saving products, cultivate leading enterprises. Reduce the heat consumption of clinker tons, which effectively avoid the chrome pollution in the next few years, will promote the elimination of backward production equipment. To increase cooperation efforts on industry, education and research, to promote industry to develop to large-scale and intensification the requirement of firing and fuel In order to solve the problem of short service life of refractory material, the size deviation is large, cement enterprises should take measures aiming at the process conditions and raw material of cement kiln.
Q:What are required for high temperature refractory bricks?
Volume density, aluminum content, soft bearing, thermal shock
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:refractory bricks of fireclay
According to the preparation process, it can be divided into bricks, high alumina brick, magnesia brickand so on, such as refractory clay brick, and ordinary brick; according to the shape and size, it can be divided into standard brick and silica brick, it can withstand all kinds of physical and chemical changes and mechanical action at high temperature; silica brick can be used as high-temperature building materials and structural material to build kiln and kinds of thermal equipments. Refractory material and fused brick with a certain shape and size are called refractory brick for short.
Q:Why can't build refractory brick behind the skew block?
refractory is heat expansion and cold contraction, it is also called refractory brick, can resist high temperature up to 580-770 degrees. Mainly used for the smelting furnace. faint yellow or brown, when it is high temperature, it will squeeze toward the center. Refractory material made of refractory clay or other refractory raw materials. the shortened form of fefractory brick is brick. vault will be extrusion deformation. Refractory material with a certain shape and size
Q:How many degrees of refractory brick if its surface turns red, how to test the temperature of refractory brick after it is burnt to red.
If the raw materials are different, then the redness is different under different temperatures.
Q:which kind of refractory bricks do coke oven and oxtongue brick belong to ( ) A, silica brick B, clay brick C, high alumina brick
General use clay bricks, but the silica brick is better, the price is expensive.
Q:How to count the number of loading refractory bricks?
Use one meter by one meter wooden raft-towing: use one meter raft-towing to count: Known your brick is T-3 standard bricks, each four layers lies down 15 and sidewards is 4 =64; according to 3.4kg, 47 clay bricks can hold 10 to 12 layers. According to the upper limit, each raft-towing can hold 2.3 tons
Q:air-cooled razheng times of magnesia-alumina spinel refractory bricks
The ingredients are magnesium, oxygen, and aluminum. the components of spinel refractory can be magnesia-alumina spinel with excessive aluminium oxide, or magnesia-alumina spinel with excessive magnesium oxide. excessive magnesium oxide and aluminium oxide can form magnesia-alumina spinel in above 1700 degrees.

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