High Quality Fireclay Refractory Brick with Low Porosity

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
1 m.t.
Supply Capability:
1000 m.t./month

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Product Description:


Description:

High Quality Fireclay Refractory Brick with Low Porosity is a kind of insulation material adopting organic matter as ignition loss substance in order to increase the porosity of refractory, which has such advantages as high porosity, small volume density, good insulation effect, high mechanical intensity, small thermal conductivity and long service life. For various industrial kilns & furnaces, it is a kind of essential refractory for energy saving and temperature preservation.

 

This series of High Quality Fireclay Refractory Brick with Low Porosity are made of selected high alumina bauxite, kaolin clay, hollow microsphere as the mian material.By shaping at high pressure and sintering at high temperature

 

Product Applications:

1. Furances of glass,coke oven,electric and so on
2.Furnaces of metallurgy industry, heat treatment furnace
3. Furnaces of chemical industry and construction industry.
4. Furnace of incineration of garbage, recirculating fluidized bed furnace
5. Standard sizing: 230 x 114 x 65 or 75 or 25  mm others up to the client

 

 

Main Product Features:

1. Low porosity,High bulk density.

2. High Cold Crushing strength.

3. High refractoriness under load.

4. High mechanical strength.

5. Good resistance to erosion.

 

 

Product Specifications:

1.With 55% Al2O3 min; 
2. Refractoriness: 1750C min; 
3.For steelmaking furnaces; 
4.ISO 9001 Certificate; 
5.Custom shape;

 

 

 

 

 

Technical data:

 High Quality Fireclay Refractory Brick with Low Porosity

FAQs:

Q1  What’s the transport method?

A1  FCL delivery goods with wooden pallet or wooden case by sea; If LCL delivery, must with wooden case; Sometimes need open top, flat rack or bulk cargo.

Q2  What’s the required payment term?

A2  Generally 30% TT as the prepayment, 70% TT before delivery. If need, 100% Irrevocable Letter of Credit or negotiation.

Q3  Which country are our products exported to?

A3  Apart from entire Chinese market, the US, Russia, Japan, Korea, Australia and some Southeast Asian Nations.

 

 

 

 

High Quality Fireclay Refractory Brick with Low Porosity

High Quality Fireclay Refractory Brick with Low Porosity


 


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Q:How to increase the service life of high temperature refractory bricks?
The wedge brick should contain the brick surface distortion, decrease scrap rate high temperature refractory brick is refractory with a certain shape and size, the error of symmetry and concentric reducer's size differences. The correctness of shape of the straight refractory brick should include the straight of the intersection and the distortion of brick's face. Under the premise of ensuring the service life, the key to improve the efficiency of manufacturers, and have the correct shape and precise size. This is to ensure that the product is qualified, refractory brick in addition to planning a reasonable scale, that is, the scale of the allowable error.
Q:How to distinguish between sintered clay brick and sintered coal gangue brick
Because the main component of fly ash is some very small hollow or solid glass beads, the apparent density is very small, so the fly ash brick has light weight and good thermal insulation and sound absorption performance. The use of fly ash to make bricks, the consumption of fly ash is large, the proportion of fly ash in China's fired brick has been increased by more than 40%. The use of sintered fly ash brick can save energy, protect land resources and protect the environment. Therefore, it is one of the industrial projects that the state should give priority to and support.
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:What kind of material is good to be laid on the kiln car, refractory brick?
Ceramic fiber blanket
Q:What are the weak points of clay bricks?
In the temperature range of 0~1000 DEG C, the clay brick volume increases with temperature uniform expansion, linear expansion curve approximates a straight line, the line expansion rate is 0.6%~0.7%, about half of the brick. When the temperature reaches 1200 degrees Celsius and then continues to heat up, the volume will begin to shrink from the maximum expansion. The residual shrinkage of clay brick results in the cracking of masonry joints, which is a major drawback of clay bricks. When the temperature is above 1200 degrees, the low melting point of the clay brick gradually melts because the particles are very close to each other due to surface tension, resulting in volume shrinkage.
Q:does all the refractory refer to refractory bricks when making steel?
chamotte, castable refractory, etc are shapeless refractory, above are all ferrous metallurgy auxiliary
Q:What are the simple ways to distinguish between excessive clay bricks and less fired clay bricks?
When the production of sintered clay brick, brick baking in an oxidizing environment and a kiln, produce red brick; if the first brick in an oxidizing roasting, and then watering stuffy kiln, the kiln to form reducing atmosphere, makes the three brick red iron oxide is reduced to a high oxygen low iron and preparation so blue. The durability of brick brick than good.
Q:The harm of wet bricks used in refractory bricks
Increase the natural protection time, increase the baking time, or water can not discharge, this will cause swelling deformation of furnace wall.
Q:What are the factors that determine the weight of the refractory bricks?
(5) Under high temperature, the volume is stable, the inner part of brick will produce unrecoverable volume shrinkage or expansion because of the internal transformation. Therefore, masonry inner will produce stress to make the material break and peel off, and the weight of a ton of bricks is determined by the bulk density and quantity, how much is the weight of refractory bricks, refractory bricks should have the ability to resist the damage, the weight of a piece of brick is determined by the bulk density: Refractory bricks are used under high temperature for a long term: Refractory bricks in the use of the process. Cooltech refractory brick used in various high-temperature equipment: The temperature of some parts of metallurgical furnace and other industrial furnace is uneven due to rapid temperature change during operation. (3) good thermal stability: Refractory bricks should not only have a high fusion temperature, no softening deformation and collapse, causing damage to the masonry. (4) strong resistance to slag: Modern metallurgy and the other industrial furnace heating temperature is generally between l000~1800. Refractory bricks should have the performance that is not easy to melt under high temperature. Therefore. Therefore, it is subject to high temperature conditions of physical and chemical corrosion and mechanical damage, the refractory brick must have the ability to resist high temperature chemical corrosion, the volume of refractory brick is required to be stable under high temperature. (2) High-temperature structural strength, chemical corrosion of metal, but also should have been built in the stove brickwork load or other mechanical vibration, often has the high temperature slag, so the refractory materials performance should meet the following requirements: (1) high refractoriness
Q:Scheme of cement kiln replacing 40 meter refractory brick kiln
If only replace refractory bricks, it just needs three days under the condition of 200 degrees. It will be simpler if there is only free water in the refractory brick (no pouring material).

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