SK-34 refractory brick

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Product Description:

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:What is the life of an old fashioned refractory brick kiln transformed into a flat topped tunnel kiln? what material should be used to transform the old fashioned refractory bricks vault kiln to flat tunnel kiln, and how long is the service life?
123
Q:How much refractory material is required for 1 million tons of coke oven
This depends on the number of specific cubic, different factory designs different boiler, we need volume to caculate.
Q:What is the meaning of the new type of dry rotary kiln refractory brick 620,320?
20 stands for that the length of the brick is 20CM, there is only a kind of 620 brick for masonry. Simply say: 1. 620 and 320 these two specifications of bricks are needed simultaneously if it is 4 meters kiln that should be built. When the diameter of the kiln is 6M. Other specifications of kiln can be built by useing these two kinds of bricks in different proportions. 3M kiln can be built only by using 320 brick, its proportion of use is 16. 3 stands for kiln's diameter
Q:What materials make of clay insulating fireclay brick?
Clay insulation bricks are general according to the different origins of raw materials, not the same
Q:What are the differences between diatomite brick and ordinary refractory bricks?
The volume density of diatomite brick is 3.9 * 10-6, good compressive strength, belongs to the small outer insulation, spinel brick.
Q:The renewal of refractory brick internal the lime kiln belongs to overhaul. In the absence of production, are the replacement of valve and sporadic projects also considered overhauls? Or routine maintenance!
The replacement of fire brick is a major overhaul. If the part causes the furnace shutdown, which is also a major overhaul, so the key of overhaul is depends on what reason it is
Q:Are there any good improvement measures for the always collapse of the previous vaulted tunnel kiln built by refractory bricks?
Volume shrinkage, uneven shrinkage and expansion of part, long-term high-temperature processing crystal type changes, calcium and other substances forming the refractory brick is Magnesium Oxide. Also the temperature changes quickly, and belongs to the crystal compound, silicon aluminum, sealing material's selection should be pay attention to
Q:can the refractory sand be used to make refractory bricks?
No...
Q:What material is good of refractory bricks?
It can also be divided into a variety of kinds, it mainly depends on where it is used, each has its own advantages, neutral three categories of refractory bricks have a variety of materials
Q:1200 degrees inside the furnace, lay a layer of refractory brick, what is the temperature outside?
except refractory brick, refractories include refractory concrete (refractory cement+aggregate), fire-resistant insulating layer (refractory cement+vermiculite powder or refractory cement + diatomaceous earth) and so on.

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