Light Weight Corundum Mullite Bricks,Corundum Mullite Bricks,Mullite Corundum Brick

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
1 m.t.
Supply Capability:
1000000 m.t./month

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Product Description:

Characteristics:

1. Low thermal conductivity

2. High strength and resistance to corrosion

3. Low heat capacity

4. Low content of impurities

5. High insulation

6. Excellent thermal shock resistance

7. Low density 

Physical and chemical index:

Item/Type

JM-23

JM -26

JM -28

JM -30

JM -32

Classification temperature,

Reference using temperature (oC) ≥

1260

1430

1540

1650

1760

Bulk density (g/cm3)

0.8

0.9

0.9

1.0

1.25

Crushing strength (Mpa) ≥

1.3

1.6

2.1

16

16

Modulus of rupture (Mpa) ≥

0.9

1.4

1.6

2.1

2.1

Permanent linear change (oCX24h)% ≤

1350°C×4h
0.5

1400°C×24h
0.4

1510°C×24h
0.5

1620°C×24h
0.9

1730°C×24h
0.9

Thermal conductivity (W/m.k) ≤

800oC

0.18

0.31

0.32

0.44

0.50

1000oC

0.2

0.34

0.35

0.45

0.52

1200oC

-

0.40

0.41

0.47

0.56

Chemical Analysis (%)

Al2O3 ≥

37

58

67

73

77

Fe2O3 ≤

1.0

0.8

0.8

0.6

0.4 

Application:

Light Weight Corundum Mullite Insulation Brick can be widely used for lining or insulation layers of various industrial furnaces and kilns in metallurgical industry, machine building industry, ceramic industry, chemical industry.


Light Weight Corundum Mullite Bricks,Corundum Mullite Bricks,Mullite Corundum Brick

FAQ

Q1: How do you control the products quality?

A1: With strict quality control system throughout the materials selection and production process, our refractory and ceramic fiber products quality is effectively controlled to meet customer requirements.

From the raw materials selecting, our quality control begin. The quality certificates of raw materials are required and each batch will be tested before using. During production, the quality control are conducted by workers and then each piece will be sorted and examined by quality supervis

 

Q2: What`s the lead time for my order?

A2: It depends on customers’ requirements and our production schedule. And usually we need 30-60 days for refractory bricks,10-25 days for unshaped refractory materials and 10-20 days for ceramic fiber blankets


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Q:What are the refractory materials?
Many kinds of refractory materials, usually by refractoriness level is divided into ordinary refractory materials (1580 to 1770 DEG C), advanced refractories (1770 to 2000 DEG C) and special refractories (more than 2000 DEG C); according to the chemical characteristics into acid refractory material, refractory materials and basic refractory materials. In addition, there are refractories for special occasions.
Q:What refractory materials are adopted in each part of the blast furnace
Bosh temperature reaches 1600~1650, high alumina brick, corundum brick or silicon carbide brick. The upper hearth tuyere zone near the temperature at 1700~2000 Deg. C, the use of sillimanite brick, corundum and silicon carbide refractory filler, Shi Mozhi. Bottom temperature at 1450~1500 Deg. C, the use of graphite bricks and microporous carbon brick, now also used corundum brick, Gang Yumo brick and synthetic mullite brick.
Q:What problems should we pay attention to in the use of fused zirconia corundum brick (fused zirconia corundum brick) in glass furnace?
The expansion curves of fused cast AZS brick at 1000 DEG C near a crystal anomaly, its internal changes of ZrO2 crystal are reversible, with large volume change, therefore, products containing ZrO2, should not be used in the temperature of 1000 DEG C, often have sharp fluctuations in the position. When baking the kiln, the temperature can not be too large at 900~1150 degrees centigrade. Generally, the temperature can not exceed 15 degrees /h, and the temperature should be raised steadily. Some parts to prevent the cold, with other brick protection, to prevent explosion.
Q:What are the advantages of refractories?
The castable refractory is a refractory product with a certain shape after being melted at high temperature by a certain method. Neutral refractory is refractory material which is difficult to react with acid or alkaline slag at high temperature, such as carbon refractory and chrome refractory. Some of the high alumina refractories are also attributed to this category.
Q:Ask for help about the phase of refractory material
Major crystalline phase. The main crystalline phase is a crystalline phase that constitutes the principal part of the material structure and has a high melting point and a dominant role in the properties of the material. The properties, quantities, distribution and bonding state of the main crystalline phases of refractory determine the properties of the products directly. A lot of refractory products, such as mullite brick, corundum brick, magnesia brick, magnesia spinel brick, silicon carbide refractory products, etc., are the main phase named.
Q:Wave tile and throwing glaze, tile which good?
The main advantages of all glazed glazed tiles are that they can be very rich and beautiful in texture and pattern, and they are suitable for family decoration, and can choose patterns according to their own family decoration style. Compared to the glazed tile, it has better pollutant discharge performance, and many pollutants are difficult to penetrate into it.
Q:How to improve the induction furnace campaign, from the promotion of refractory life start
Select suitable insulation materials, such as polycrystalline facing blocks and ceramic fiber modules, depending on the service temperature
Q:Which is good, glazed brick and whole cast glazed brick?
The main advantages of all glazed glazed tiles are that they can be very rich and beautiful in texture and pattern, and they are suitable for family decoration, and can choose patterns according to their own family decoration style. Compared to the glazed tile, it has better pollutant discharge performance, and many pollutants are difficult to penetrate into it.
Q:What is the main component of corundum?
The name of corundum originates from India and is the name of mineralogy. There are three main variants of corundum Al2O3, which are alpha -Al2O3, beta -Al2O3 and gamma -Al2O3 respectively. Corundum is second only to diamond.
Q:What material is used in an iron smelting furnace?
In fact, refractory refractory ah is special ceramic frequently used AZS brick, corundum brick, magnesia chrome brick, silicon carbide, silicon nitride bonded silicon carbide, nitrides, silicides, sulfide, boride, carbide and other non oxide refractory materials; calcium oxide, chromium oxide, alumina, Magnesium Oxide, beryllium and other refractory materials.

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