$High Alumina Brick - Professional Manufacturer for High Alumina Bubble Refractory Bricks System 1$
$High Alumina Brick - Professional Manufacturer for High Alumina Bubble Refractory Bricks System 2$

$High Alumina Brick - Professional Manufacturer for High Alumina Bubble Refractory Bricks$

$High Alumina Brick - Professional Manufacturer for High Alumina Bubble Refractory Bricks System 1$

$High Alumina Brick - Professional Manufacturer for High Alumina Bubble Refractory Bricks System 2$

High Alumina Brick - Professional Manufacturer for High Alumina Bubble Refractory Bricks

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Item	AKZ-85	AKZ-90	AKZ-99
Chemical composition	Al2O3	≥85	≥90	≥99
SiO2	≤13	≤8	≤0.2
Fe2O3	≤0.5	≤0.5	≤0.5
Apparent Porosity%	58-62	58-62	58-62
Bulk Density g/cm3	1.4-1.7	1.4-1.7	1.4-1.7
Cold Crushing Strength Mpa	≥12	≥10	≥9
0.1Mpa Refractoriness Under Load T0.6 °C	≥1650	≥1700	≥1700
Permanent Linear Change On Reheating (%)1500°CX2h	±0.3	±0.3	±0.3
20-1300°C Thermal Expansion % (x 10-6)	0-7.8	0-8.0	0-8.6
Thermal Conductivity(Average 800°C) W/(M.K)	≤0.8	≤1.3	≤1.5
Max Service Temperature °C	1680	1700	1800

Place of Origin:	Henan, China (Mainland)	Shape:	Block	Material:	Alumina Block
SiO2 Content (%):	8	Al2O3 Content (%):	90	MgO Content (%):	0
CaO Content (%):	0	Refractoriness (Degree):	Common (1580°< Refractoriness< 1770°)	CrO Content (%):	0
SiC Content (%):	0	Model Number:	AKZ-85 90 99	Brand Name:	cnbm
Name:	high alumina bubble refractory bricks	size:	any size	Item:	AKZ-90
Al2O3:	90	SiO2:	8	Fe2O3:	0.5
Apparent Porosity%:	58-62	Bulk Density g/cm3:	1.4-1.7	Cold Crushing Strength Mpa:	10
0.1Mpa Refractoriness Under Load T0.6 °C:	1700

Packaging Details:	Wooden pallet or as the customer's requirments
Delivery Detail:	30 Days

Q: What are the high aluminum bricks made of?: The amount of refractory mud accounts for about 6% of the brick weight

Q: What are the main components of high alumina bricks?: High alumina brick materials according to the main mineral phase can be divided into: aluminum silicate minerals, such as sillimanite, kyanite, andalusite, and synthetic mullite.

Q: What is the standard classification of high alumina bricks and 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: Density of high alumina bricks: High alumina brick by aluminum content is divided into four grades, three grade high alumina bricks content of not less than fifty-five percent, two grade high alumina bricks content of not less than 65, a high aluminum brick content of not less than 75, super high aluminium brick content above 85. As for the high aluminum brick shape, in addition to the standard high alumina brick, high alumina brick and general type, also called special high alumina brick, if the shape is very irregular it is usually called the specific type of high alumina brick, in short, to customized according to the specific use of kiln.

Q: How are the high alumina bricks fired?: Generally, the high alumina bauxite is added with a small amount of clay. After being ground, the gas is injected and shaped in the form of slurry by the way of gas attack or foam, and it is burnt at 1300~1500 DEG C. Sometimes industrial alumina can be used to replace part of bauxite clinker. Used for lining and thermal insulation of masonry kilns, as well as for areas where there is no high temperature, high melting material erosion and erosion effects. When touching the flame directly, the touch temperature shall not be higher than 1350 degrees.

Q: What are the common thermal insulation materials for thermal conductivity?: The single organic insulation material should be the best polyurethane in the field. In accordance with the production process can be divided into on-site foam polyurethane and factory prefabricated rigid foam polyurethane board. The scene is polyurethane foam isocyanate and polyol to cool (polyether or polyester) two components as the main raw materials with additives, the on-site spraying construction with thermal insulation and waterproof function of the rigid foam material.

Q: What are the alloy wear resistance materials?: Alloy wear-resistant materials from different manufacturers different components in Beijing Naimo company as an example, the following alloy wear resistant material:1: Ni Cr alloy wear-resistant material2: chrome carbide wear-resistant material3: high manganese alloy wear-resistant material4: tungsten carbide alloy wear-resistant material5: nickel tungsten alloy wear-resistant material

Q: Are there any differences between insulating bricks and refractory bricks?: The refractoriness of insulating bricks is generally below 1400 tons, while the refractoriness of refractory bricks is above 1400 degrees. 3. density insulation bricks are generally lightweight insulation materials, the density is generally in 0.8-1.0g/cm3, and the density of refractory bricks are basically above 2.0g/cm3.

Q: The difference between ordinary and diatomite brick refractory brick: Insulation products made from diatomaceous brick and porous diatomite. The main raw material is natural porous diatomite, and then a small amount of clay and fuel are added. The volume density of diatomite brick was 0.7g/cm3, compressive strength at room temperature is 1 ~ 2MPa, the coefficient of thermal conductivity at 400 C for 0.13 ~ 0.20W/ (M - K), the apparent porosity is greater than 70%, the coefficient of thermal expansion (1280 degrees) 0.9 x 10 - 6 DEG -1, refractoriness is greater than 1250 DEG C. Mainly used in industrial kilns and other thermal equipment, thermal pipes insulation materials, generally withstand the hot surface temperature of about 1000 degrees celsius. Mainly used in industrial kilns and other thermal equipment, thermal pipes insulation materials, generally withstand the hot surface temperature of about 1000 degrees celsius.

Q: What does refractory consist of?: According to the chemical characteristics of refractory raw materials can be divided into acidic refractory materials, such as silica, zircon etc.; neutral refractory raw material, such as corundum, bauxite, mullite (acidic) (acidic), Ge (alkaline) iron and graphite; alkaline refractory materials, such as magnesite, dolomite, magnesium sand calcium sand.

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