High Alumina Lightweight Insulating Brick

High Alumina Lightweight Insulating Brick System 1

High Alumina Lightweight Insulating Brick

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Specifications

1.Lightweight Mullite insulating brick
2.Manufacturer
3.ISO9001&CE
4.20 years experience of producing,researching,exporting

Lightweight mulite insulating brick

Lightweight mullite insulating brick
Density: 0.6-0.8g/cm3
Temperature: 1350-1550 degree
Al2O3: 45-60%
Stand Size: 230x114x65/75mm

Raw material of Lightweight mullite insulating brick:

JM insulating brick, using high pure mullite as raw material, is made by adding alumina powder according to different type and then sintered at high temperature. JM insulating brick is the new energy saving material for insulation.

CHARACTERISTIC of Lightweight mullite insulating brick:
Low density
High purity
Low thermal conductivity
Excellent thermal shock resistance

APPLICATION of Lightweight mullite insulating brick:
glass industries iron & steel industries
ceramics industries non-ferrous metals industries
electrolytic Aluminum industries power generation industries
Heat surface fireproof lining other fire-proof back lining

Tech Data of Lightweight mullite insulating brick:

Item	Lightweight Mullite insulating brick
Index/Brand	JM-23	JM-26	JM-28
AL2O3, % ≥	45	52	60
Fe2O3, % ≤	0.8	0.6	0.6
Bulk density g/cm3	0.8	0.9	0.9-1.0
Cold crushing strength MPa	2.1-3.0	3.0-4.0	6.0-7.0
Linear change after heating%(155O°C × 2h)	±0.5	±0.5	±0.8
Thermal conductivity (350°C±25°C)(w/m·k)	0.2-0.25	0.2-0.3	0.2-0.25
Maximum service temperature°C	1350	1450	1550

Lightweight insulating brick

Q:How much is one ton / ton of high alumina refractory brick?: The market price of about super high aluminium brick price at 3000 yuan / ton, a high aluminum brick at around 2500 yuan / ton, two high aluminum bricks at around 2100 yuan / ton three grade high alumina bricks at around 1850 yuan / ton for reference, choose to buy the area is not the same as the prices are not the same.

Q:Difference between low creep high alumina brick and ordinary high alumina brick: The emphasis is on the physical and chemical indexes of low creep and high alumina bricks. The physical and chemical indexes of the high alumina bricks are different, too. They are DRL-1550And LZ-75 perform GB GB/T2988-2012

Q:How to test the aluminium bricks of high alumina refractory bricks?: Forming high alumina brick will be tested on some professional equipment, it is suggested that you can go to the professional testing department to know about it!

Q:The difference between aluminium refractory and magnesia refractory: Magnesia refractory belongs to alkaline refractory materials refers to refractory products such as magnesia magnesia brick magnesium iron spinel magnesium aluminum spinel magnesia ramming materials and other products of raw materials is the main crystal phase is periclase magnesia products

Q:What are the reasons for the decline in the performance of high alumina bricks when we use high alumina refractory bricks?: The brick Pei boring and time. 6, Pei brick kiln installed between the brick and the brick Pei order, Pei and kiln top, kiln wall gap etc.. 7, high alumina brick kiln plan, and the lack of edges and corners of the scene should be avoided.

Q:What are the alloy wear resistance materials?: KNMn19Cr2 (patent) high manganese alloy (ZGMn13Cr2MoRe), super high manganese alloy (ZGMn18Cr2MoRe); two: anti-wear chromium cast iron series: such as high, medium and low chromium alloy cast iron (Cr15MOZCu); three: wear resistant alloy steel series: such as, low and high carbon multi metal combined steel (such as ZG40SiMnCrMO and ZG35Cr2MoNiRe); four: ADI (ADI) series; five: all kinds of composite or gradient material and hard alloy materials, nano KN alloy (patent product): such as chromium carbide composite (Cr2C3+Q235), high-energy ion osmosized tungsten carbide materials (WCSP), high toughness of cemented carbide (YK25.6), KN999 nano alloy (Beijing Naimo patent) etc.;

Q:How to reduce the harm caused by two times mullite in high alumina refractory material: Two times mullite refers to the content of aluminum is about 70%, in high temperature sintering, the expansion coefficient is large, the thermal expansion rate is high.

Q:What's the difference between high alumina refractory bricks and high alumina refractory bricks?: The chemical pH value of high alumina refractory brick belongs to neutral and alkaline refractory brick, and clay refractory brick belongs to neutral and acid refractory brick.

Q:Does the chimney have high acid resistance?: The acid resistant bricks used for chimney are usually made of custom-made trapezoidal acid proof bricks, and the physical and chemical indexes of acid resistant bricks need to be confirmed according to the chimney's actual emission. At this point, you can consult our kerei refractories.

Q:What materials are used for roof insulation?: The other one is inorganic insulation materials, such as Portland, rare earth insulation, the thickness should be 5 cm or more, up to the high cost of auxiliary materials of construction, to reinforce, new inorganic insulation material, the material thickness, on the line of 2-3 cm, direct smear on the top of the house, without auxiliary material, than the price of wool, high aluminum silicate cotton.

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