$High Alumina Brick - High Density Refractory Magnesia Bricks Chinese Manufacturer System 1$
$High Alumina Brick - High Density Refractory Magnesia Bricks Chinese Manufacturer System 2$
$High Alumina Brick - High Density Refractory Magnesia Bricks Chinese Manufacturer System 3$
$High Alumina Brick - High Density Refractory Magnesia Bricks Chinese Manufacturer System 4$
$High Alumina Brick - High Density Refractory Magnesia Bricks Chinese Manufacturer System 5$

$High Alumina Brick - High Density Refractory Magnesia Bricks Chinese Manufacturer$

$High Alumina Brick - High Density Refractory Magnesia Bricks Chinese Manufacturer System 1$

$High Alumina Brick - High Density Refractory Magnesia Bricks Chinese Manufacturer System 2$

$High Alumina Brick - High Density Refractory Magnesia Bricks Chinese Manufacturer System 3$

$High Alumina Brick - High Density Refractory Magnesia Bricks Chinese Manufacturer System 4$

$High Alumina Brick - High Density Refractory Magnesia Bricks Chinese Manufacturer System 5$

High Alumina Brick - High Density Refractory Magnesia Bricks Chinese Manufacturer

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 1 m.t.

Supply Capability:: 2000 m.t./month

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Description of Refractory Magnesia Bricks

Refractory Magnesia Bricks High Density Chinese Manufacturer is kind of structural ceramics, with insulation resistance, voltage resistance, high strength, good thermal conductivity, dielectric loss, stable electrical performance characteristics.

Used in electronic ceramic substrates, ceramic electrical insulation, vacuum devices, devices porcelain, spark plugs and other products.

We can make the part by hot injection pressing, dry pressing, isostatic pressing and extrusion productive technology etc

Features of Refractory Magnesia Bricks

(1) Excellent refractoriness

(2) Excellent chemical stability and thermal stability

(3) Low thermal conductivity, low thermal capacity

(4) Resist to external mechanical forces

(5) Able to withstand any thermal shock

(6) Generate no gaps between modules

Specifications for Refractory Magnesia Bricks

Performance
Item		Unit	95 Al2O3	96 Al2O3	99 Al2O3
Physical Characteristics	Bulk density	g/cm3	3.6	3.6	3.9
Physical Characteristics	Water absorption	%	0	0	0
Mechanical Characteristics	Flexural strength	Mpa	320	340	360
	Hardness Vickers	Gpa	12.2	13.5	15.6
	Elastic modulus	Gpa	280	320	370
	Poisson’s ratio	-	0.22	0.23	0.23
Thermal Characteristics	Linear expansion coefficient	(200C-5000C) 10-6/0C	7.1	7.2	8
	Thermal conductivity	w/(m.k)	16	24	32
	Specific Heat	10-3J/(kgK)	0.78	0.78	0.9
Electrical Characteristics	Dielectric constant (1MHZ)	-	9	9.4	9.9
	Dielectric loss angle	*10-4	15	5	1
	Dielectric strength	*106V/m	12	15	15
Processing technology
Process range (mm)
Outside Diameter	1---300
Inside Diameter	0.5---300
Length	0.5---1200
Accuracy of working (mm)
Perpendicularity	0.01
Concentricity	0.01
Roundness	0.005
Straightness	0.005
Parallelism	0.01
Planeness	0.005
Roughness	0.05
Fit clearance	0.005

Images of Refractory Magnesia Bricks

$Refractory Magnesia Bricks High Density Chinese Manufacturer$

Applications of Refractory Magnesia Bricks

Common applications :door seals or caulking for ovens, furnaces and boilers, expansion joints, cable or pipe wrapping, high temperature seals or gaskets.

Refractory Magnesia Bricks have been widely used in welding, foundry works, aluminum and steel mills, boiler insulation and seal, exhaust systems, shipyards, refineries, power plants and chemical plant

FAQ of Refractory Magnesia Bricks

1. Can we visit your factory?

Sure, we warmly welcome you to visit our factory any time. Seeing is believing.

2. After an order is placed, when you will deliver?

10-30days.

3. Does your company accept customization?

We have a strong technical force. Our production methods are unique in that in allows us to be responsive to the needs and specification of our customers. We use a batch method of production, so each technician on the line is responsible for a specific area of expertise. at any point in our production, we can make changes and incorporate the feedback from our clients. We accept OEM service.

4. How is your products quality?

We specialize in fire brick ,our products are superior in quality to any other brand available on the market. These fire brick are gaining popularity because of their fine quality, competitive prices, and our honest dealings.

Q: What is fireproof concrete?: According to the different properties of fire resisting and heat resisting concrete, they can be divided into silicate, aluminate, phosphate, sulfate, chloride, sol and organic substance, fireproof and heat-resisting concrete, etc.. The following are mainly used silicate, aluminate, phosphate, sulfate fire, heat-resistant concrete.

Q: What are the grades of high alumina bricks?: According to the size of high aluminum brick is divided into: standard brick, special-shaped brick.

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: How to make refractory bricks and boiler wall adhesion more firm?: If the condition, the user heat-resistant steel welding grip nails, expansion joints can not be too big.. Also to use high temperature aluminum brick, high temperature resistance, but also to extend its use cycle.

Q: What is the content of free silica in the refractory bricks of high alumina bricks?: In the meantime, the free silica content of silicon brick is as high as 90% above. Therefore, the most serious damage is silicon brick, followed by clay brick, high alumina brick, magnesia brick and so on.

Q: Which is faster for heat transfer between corundum bricks and high alumina bricks?: There must be a difference. They vary in color from the amount of aluminum, the weight, the temperature, and the color.

Q: What causes breakage of refractory bricks?: Refractory brick is a non metal mineral products can be used in the high temperature of 1550 DEG C under belongs to a class of inorganic, used in high-temperature furnace lining materials as protection kiln, which causes damage, usually have these points.Furnace temperature is not clear, there is no corresponding choice of refractory bricks.Physical impact, abrasion and erosion cause damageChemical factors, especially chemical industry, should be made of refractory bricks, which should be resistant to penetration and erosionIV: products from the factory when the factory did not pass the quality inspection standards

Q: How can the refractory brick blast furnace be pulverized and pulverized enough not to be taken away by the wind?: The gas will directly lead the dome combustion, in order to ensure good mixing, complete combustion of gas and air in a short time, the combustion capacity of short flame or flameless combustion burner, commonly used for semi jet short flame burner.

Q: What are the categories of bricks?: Ordinary brick size of 240 mm * 115 mm * 53 mm, according to compressive strength (Newton / square millimeter, N / mm2) size is divided into MU30, MU25, MU20, MU15, MU10, MU7.5, these intensity levels.

Q: High alumina brick 80 with which high aluminum cement?: Which kind should be chosen should be determined according to the conditions of use, life expectancy and cost control. By the way, the quality of masonry is also very influential.

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