High Alumina Corundum-Mullite Insulation Brick in Lightweight
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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 Corundum-mullite Insulation Brick
Corundum-mullite Insulation Brick in Light Weight refers to containing AL2O3 30% ~ 46% of lightweight refractory products, clay clinker or light clinker and plastic clay as the main raw material, usually fuel production, but also can send or chemical foaming method porous structure. Common light chamotte bulk density of 0.75 ~ 1.2g / cm3, mainly for industrial kilns does not melt and no erosion of the contact action of gas insulation layer material, the using temperature of Corundum-mullite Insulation Brick is 1200 ~ 1400 ° C.
Specifications for Corundum-mullite Insulation Brick
Item | ZGN-42 | GN-42 |
AL2O3 /% | ≥42 | ≥42 |
Fe2O3 /% | ≤1.6 | ≤1.7 |
Refractoriness /°C | ≥1750 | ≥1750 |
Apparent porosity/ % | ≤15 | ≤16 |
Cold crushing strength/ Mpa | ≥58.8 | ≥49.0 |
Refractoriness under load/ °C | ≥1450 | ≥1430 |
Reheating Linear Change(1450°C,2h)/% | 0 -0.2(3h) | 0 -0.3(3h) |
Permeability | This test must be conducted.The data of the test shall be included in the quality certificate. | |
Features of Corundum-mullite Insulation Brick
Good volume stability at high temperature.
High-temperature creep rate is low.
Good thermal shock resistance.
Good corrosion resistance.
Good wear resistance.
Typical Application of Corundum-mullite Insulation Brick
Furnaces of metallurgy industry, heat treatment furnace.
Furnaces of chemical industry and construction industry.
Furnace of incineration of garbage, recirculating fluidized bed furnace .
- Q: How much is the bending temperature aluminum silicon carbide brick for torpedo car
- High alumina brick is made of superfine alumina, fused corundum and fused mullite as main refractory materials.
- Q: Is there a big difference between two high alumina brick and one high alumina brick?
- The difference between the two kinds of high alumina bricks is great. I perennial in Zhengzhou was responsible for the production and sale of colt refractories
- Q: What is the price of the first grade high alumina brick?
- Many factories in Xinmi have high alumina bricks, but they must choose a regular factory. Kuwait refractory level high aluminum brick price at around 1600, the quality of double stable supply
- Q: The cloth blowing is not uniform on the lime kiln refractory brick is damaged it
- Lining 1 yuan to prevent direct damage to the Sindh kiln high temperature flame or air, to protect the kiln carcass; 2, to prevent harmful substances (CO, SO2) erosion of the kiln body; 3, to prevent corrosion, material flow on the kiln body; 4, reduce the kiln temperature, kiln body to prevent oxidation 5, has the function of corrosion; thermal insulation; 6, to improve the coating performance.
- 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 are the high temperature refractory mortars made of?
- Siliceous mud, mineral composition and chemical composition is similar with silica, excellent corrosion resistance, water glass slurry, drying shrinkage, but also can be used for bonding fiber products, sealing furnace wall.
- 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: 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: Which thermal shock stability of clay brick and high alumina brick is good?
- Generally, the thermal shock resistance of high alumina brick products is worse than that of clay brick products
- Q: What should be used as binder for making high alumina bricks?
- In addition, high alumina micro powder can be used as binding agent, or high alumina micro powder and clay powder are prepared according to a certain proportion, and synthetic mullite is used as bonding agent. With these binders, high alumina bricks without two expansion can be prepared.
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High Alumina Corundum-Mullite Insulation Brick in Lightweight
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 m.t.
- Supply Capability:
- 2000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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