Mullite Brick - Low Apparent Porosity Insulating Fire Bricks

Mullite Brick - Low Apparent Porosity Insulating Fire Bricks System 1

Mullite Brick - Low Apparent Porosity Insulating Fire Bricks

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 1 m.t.

Supply Capability:: 1000 m.t./month

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Packaging & Delivery

Packaging Details:	Wood carton box:10pcs/carton wooden pallet:544pcs/pallet
Delivery Detail:	15 Days deposit

manufacture low apparent porosity mullite insulating fire brick for heating furnace

Product Description

Low apparent porosity mullite insulating fire brick for heating furnace is a kind of insulation refractory product taking mullite as main raw materials.It enjoys high temperature resistance, high strength, nd low thermal conductivity. Besides, it can directly contact the flame, and can be used in lining of a variety of industrial furnaces.

key features

1.Low density High purity

2.Low iron Low thermal conductivity

3.Excellent thermal shock resistance

application

1.Glass industries iron & steel industries

2.Ceramics industries non-ferrous metals industries

3.Electrolytic Aluminum industries power generation industries

4.Heat surface fireproof lining other fire-proof back lining

Technical Data

Index of refractory Mullite lightweight brick
item	AL2O3%	Fe2O3%	Bulk Density,	Cold Crushing	linear change	Thermal conductivity
item	AL2O3%	Fe2O3%	g/cm3	Strength Mpa	on reheating/%	/W.(m.k)-1(350℃)
P30-6	≥52	≤1.0	<0.6< p="">	≥1.5	≤1.0(1350°C,12h)	0.2
P40-8	≥55	≤0.8	<0.8< p="">	≥2.5	≤1.0(1400°C,12h)	0.28
P50-10	≥60	≤0.8	<1.0< p="">	≥4.0	≤1.0(1500°C,12h)	0.33
P60-12	≥72	≤0.8	<1.2< p="">	≥2.5(1.2)	≤1.0(1650°C,12h)	0.44
P60-135	≥72	≤0.8	<1.35< p="">	≥3.5(1.4)	≤1.0(1650°C,12h)	0.48
P65-155	≥76	≤0.8	<1.55< p="">	≥3.8(1.6)	≤1.0(1650°C,12h)	0.53
P70-165	≥80	≤0.6	<1.65< p="">	≥6.0(2.8)	≤1.0(1700°C,12h)	0.7
P80-175	≥85	≤0.5	<1.75< p="">	≥6.0(2.8)	≤1.0(1750°C,12h)	0.72

Low Apparent Porosity Mullite Insulating Fire Bricks

other products

Low Apparent Porosity Mullite Insulating Fire Bricks

Q: Aluminum content 38, silicon content 55 What refractory bricks?: When the bricks are below Al2O3 71.8%, the base of the composition is mullite and SiO2, such as grade LZ-48 bricks. Because it contains a large number of SiO2 formed in the liquid phase under high temperature is 20% ~ 30%; brick in Al2O3 more than 71.8%, the excess Al2O3 formed corundum crystal under high temperature, while generating 2 high temperature phase, eutectic temperature rise by the low content of Al2O3 brick 1595 C to 1840 C, such as grade LZ-75 brick. In fact, it is impossible to produce a complete phase equilibrium in the process of production, but the glass phase is very small, and there is no more than 10% in the partial gap of the Yu Jing phase

Q: (refractory castable, silicon carbide brick, mullite bricks etc.) do testing should be commissioned by the project? What are the specific qualification standards? Thank you: Different refractory materials have different requirements, specific industry or national standards, such as LZ can check the mullite bricks GB / standard, there should be a harvest, do testing project is in accordance with the requirements of the LZ need to determine the use requirements

Q: What are the properties of corundum mullite?: Lightweight materials have uniform internal structure, high compressive strength, corrosion resistance, heat shock resistance, oxidation resistance, high temperature and low thermal conductivity.

Q: What is the difference between mullite ceramics and alumina ceramics? Can you tell me something to do with floor tiles?: The floor tiles are not made exclusively of alumina. Pure alumina ceramics are expensive.

Q: What is the price of refractory bricks?: The refractory insulating brick generally refers to light brick, normal furnace lining are using this brick kiln will not increase the weight, and good heat insulation effect and ordinary insulating brick production are made of clay, high alumina high strength low iron bead brick, mullite, high aluminum light insulating firebrick, diatomite insulating refractory brick, the use of light heat insulation brick can increase the use of space, and good insulation effect

Q: The introduction of mullite brick: High alumina refractory with crystalline mullite (3Al2O3, 2SiO2) as the main crystal phase.

Q: Mullite brick: Mainly used for hot blast stove of blast furnace and furnace bottom and furnace, glass furnace regenerator, sintering kiln, petroleum cracking dead lining system.

Q: The difference between the high aluminum corundum brick and corundum mullite brick: Tiles are called floor tiles, floor tiles, polished tiles and glazed tiles are glazed tiles, bricks are samples of all kinds of tiles, ceramic tiles will be placed in the tile shop, tiles are also divided into outer wall tiles and inner wall tiles, modern brick and antique brick

Q: What are the varieties of polycrystalline mullite?: Performance comparisonWe used chemical method to produce a microcrystalline structure, excellent thermal stability, temperature exceeds the 300~400. C.The small fiber diameter uniform, slag ball trace, bulk density for 1/2~1/3 products.The large amount of fiber products, high porosity, low coefficient of heat conductivity.It has large surface area, is the ideal material for high temperature catalytic carrier.

Q: Refractory bricks (mullite bricks) can be used on the walls of buildings?: In many architectural design, high-rise fire rating is placed in the important position of the topic, especially when the floor height is more than 20 layers, we have more stringent requirements for the choice of fire resistant materials. The building wall, kitchen flue, boiler flue, flammable zone must use a firewall barrier, in many refractory refractory brick is the product of choice for fire resistance of refractory brick masonry is more stable.

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