Refractory bricks / Fireclay bricks / Insulation bricks (LQFB)

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Shanghai
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TT OR LC
Min Order Qty:
1 m.t.
Supply Capability:
111 m.t./month

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Product Description:

Specifications

Refractory Brick 
1-Made from high quality alumina 
2-Low thermal conductivity 
3-SK series,custom made 
4-.ISO9001 certificated

Fire/firecaly brick

 

Refractory brick is dense shaped refractory material. With high refractoriness and mechanical behavior under high temperature, refractory brick is the necessary material of high-temperature services, mainly used for industrial furnaces and kilns and thermal equipment.

 

Refractory brick has wide applications, mainly used in metallurgy, construction(cement and glass), petroleum, chemical industry, electric power and machine building.

 

Linquan series alumina bricks are high quality dry pressed alumina bricks, ranging from 35% to 95% in alumina content.

 

Fire clay bricks

Chemical and Physical Properties

LQHAB70

LQHAB 60

LQHAB 50

LQHAB 80

Chemical
Analysis (%)

Al2O3; ≥

70

60

50

80

Fe2O3; ≤

2.0

2.0

2.0

2.0

Refractoriness (SK); ≥

38

37

36

39

Bulk Density; ≥

2.30

2.20

2.10

2.40

Apparent Porosity (%); ≤

23

23

23

23

Cold Crushing Strength

400

400

300

400

(Kg/cm2); ≥

Thermal Expansion (%)

0.65

0.60

0.53

800

0.65

at 1000°C

Permanent Linear Change (%)

0.3

0.3

0.3

0.2

at 1500°C × 2Hrs

Refractoriness under Load

1580

1500

1470

1670

 

High aluminum bricks

Chemical and Physical Properties

LQH-90

LQH 85

LQH-80

Chemical
Analysis (%)

Al2O3; ≥

90

85

80

Fe2O3; ≤

1.0

1.0

1.0

Refractoriness (SK); ≥

40

40

39

Bulk Density; ≥

3.10

2.90

2.80

Apparent Porosity (%);≤

18

20

20

Cold Crushing Strength

700

600

600

(Kg/cm2); ≥

Thermal Expansion (%)

0.70

0.68

0.65

at 1000°C

Permanent Linear Change (%)

0

0

0.2

at 1500°C × 2Hrs

Refractoriness under Load

1,700

1,700

1,670


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Q:What are the characteristics of high alumina bricks?
High thermal stability, fire resistance above 1770. Slag resistance is good, used for masonry steel smelting furnace, glass furnace, cement rotary furnace lining. High R.U.L, low creep high alumina brick with high grade bauxite, fused corundum, fused mullite as main raw material of high-grade refractory materials.
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:The cloth blowing is not uniform on the lime kiln refractory brick is damaged it
Lining 1 yuan to prevent direct damage to the Sindh kiln high temperature flame or air, to protect the kiln carcass; 2, to prevent harmful substances (CO, SO2) erosion of the kiln body; 3, to prevent corrosion, material flow on the kiln body; 4, reduce the kiln temperature, kiln body to prevent oxidation 5, has the function of corrosion; thermal insulation; 6, to improve the coating performance.
Q:Is glass wool inorganic thermal insulation material?
The characteristics of glass wool, glass wool is the molten glass fibrosis, the formation of cotton like material, chemical composition of glass, is a kind of inorganic fibers. With good forming, small volume density, thermal conductivity, both thermal insulation, sound-absorbing performance, corrosion resistance, chemical stability.
Q:What are the reasons for the decline in the performance of high alumina bricks when we use high alumina refractory bricks?
Quality requirements for aluminium bricks of different grade. 2, high aluminum powder and high alumina aggregate and other materials of reasonable proportion, to reach the production requirements.
Q:What is the density of a super high alumina brick and what is the price?
Super high alumina brick, alumina content of 80% bricks, bulk density of 2.7g/cm3 or more, the factory price of about 1900 yuan
Q:What is the standard classification of high alumina bricks or high alumina bricks?
Refractory brick is non-metallic materials can be classified according to a kind of inorganic material, high aluminum brick, clay brick, magnesia brick, corundum brick, mullite bricks, silicon carbide materials such as brick, high alumina brick is used as a relatively wide range of products in accordance with the refractory brick high alumina refractory materials by high aluminum brick is generally divided into Al2O3 content three: I - II - >75% Al2O3 content; the content of Al2O3 is 60 ~ 75%; III - Al2O3 content from 48 to 60%.
Q:Corundum, high alumina and fireclay refractory difference is what
They differ in that the alumina content is different, and the content is in order: corundum > high alumina > clay.
Q:What are the categories of bricks?
Clay brick materials, cheap, durable, and fire prevention, heat insulation, sound insulation, moisture absorption and other advantages, is widely used in civil engineering. Waste brick can also be used as aggregate of concrete. In order to improve the shortcomings of ordinary clay bricks, such as small, self important and waste of soil, they are developing in the direction of light weight, high strength, hollow and big blocks.
Q:What is fireproof concrete?
Silicate fireproof heat-resistant concrete using temperature can reach 700 DEG ~800 DEG, the main mechanism of its heat is dehydrated calcium hydroxide silicate hydrates series of cement clinker under high temperature, the calcium oxide and slag and mixing activated silica material in the three and two aluminum oxide and the reaction of anhydrous calcium silicate and anhydrous aluminum acid calcium has strong heat resistance, the fire resistance of concrete is a certain. Such as the use of high alumina bauxite and broken bricks, magnesia brick and magnesia for fireproof heat-resistant concrete materials with the highest using temperature can reach 1100 DEG C.

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