Corundum Brick - Light Weight Corundum Mullite Bricks
- Ref Price:
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- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 m.t.
- Supply Capability:
- 1000000 m.t./month
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Characteristics:
1. Low thermal conductivity
2. High strength and resistance to corrosion
3. Low heat capacity
4. Low content of impurities
5. High insulation
6. Excellent thermal shock resistance
7. Low density
Physical and chemical index:
Item/Type | JM-23 | JM -26 | JM -28 | JM -30 | JM -32 | |
Classification temperature, Reference using temperature (oC) ≥ | 1260 | 1430 | 1540 | 1650 | 1760 | |
Bulk density (g/cm3) | 0.8 | 0.9 | 0.9 | 1.0 | 1.25 | |
Crushing strength (Mpa) ≥ | 1.3 | 1.6 | 2.1 | 16 | 16 | |
Modulus of rupture (Mpa) ≥ | 0.9 | 1.4 | 1.6 | 2.1 | 2.1 | |
Permanent linear change (oCX24h)% ≤ | 1350°C×4h | 1400°C×24h | 1510°C×24h | 1620°C×24h | 1730°C×24h | |
Thermal conductivity (W/m.k) ≤ | 800oC | 0.18 | 0.31 | 0.32 | 0.44 | 0.50 |
1000oC | 0.2 | 0.34 | 0.35 | 0.45 | 0.52 | |
1200oC | - | 0.40 | 0.41 | 0.47 | 0.56 | |
Chemical Analysis (%) | Al2O3 ≥ | 37 | 58 | 67 | 73 | 77 |
Fe2O3 ≤ | 1.0 | 0.8 | 0.8 | 0.6 | 0.4 | |
Application:
Light Weight Corundum Mullite Insulation Brick can be widely used for lining or insulation layers of various industrial furnaces and kilns in metallurgical industry, machine building industry, ceramic industry, chemical industry.
FAQ
Q1: How do you control the products quality?
A1: With strict quality control system throughout the materials selection and production process, our refractory and ceramic fiber products quality is effectively controlled to meet customer requirements.
From the raw materials selecting, our quality control begin. The quality certificates of raw materials are required and each batch will be tested before using. During production, the quality control are conducted by workers and then each piece will be sorted and examined by quality supervis
Q2: What`s the lead time for my order?
A2: It depends on customers’ requirements and our production schedule. And usually we need 30-60 days for refractory bricks,10-25 days for unshaped refractory materials and 10-20 days for ceramic fiber blankets
- Q: Application of electric high temperature regulating valve?
- Now, the definition of refractories has not only depended on the degree of refractoriness is more than 1580 degrees celsius. At present, refractory materials refer to inorganic non-metallic materials used in metallurgy, petrochemical, cement, ceramics and other production equipment lining.
- Q: How much is a refractory brick?
- There are many kinds of refractory bricks, you have to look at what is material, the material is not the same, the price is not the same, clay brick is the cheapest, probably hundreds of dollars a ton, and corundum brick a ton of several money, silicon carbide, silicon nitride, and more expensive. And this thing is generally on t sell, the price is by a single block after conversion.
- Q: What material is used in an iron smelting furnace?
- Often used insulation refractories are diatomite products, asbestos products, insulation panels and so on.
- Q: What does refractory consist of?
- Refractory materials can be divided into main raw materials and auxiliary raw materials according to their function in the production process of refractory materials.The main raw material is the main body of refractory. Auxiliary raw materials can be divided into binders and additives. The role of bonding agent is to make the refractory body in the production and use process has enough strength. There are commonly used lignin, phenolic resin, asphalt, cement, water glass, phosphoric acid and phosphate, sulfate, some main raw material itself has the effect of binder, such as clay; additive is to improve the production of refractory materials and construction technology, or strengthen the refractory material of some properties, such as stabilizer, water reducing agent, inhibitor, plasticizer, foaming agent, dispersing agent, bulking agent, antioxidant.
- Q: What is the difference between corundum and high alumina?
- The main component of high purity 99 corundum brick is corundum sand,90 corundum brick is mainly composed of corundum sand and a small amount of Suzhou soil, mullite.
- Q: What are the main constituents of refractory bricks?
- High alumina refractory brick, high alumina refractory brick mineral composition for corundum, mullite and glass phase, its content depends on AL2O3/, SiO2 ratio, as well as the kind and amount of impurities, AL2O3 content can be divided into refractory brick grade. The raw materials are high alumina and sillimanite natural ore. They are also made of fused alumina, sintered alumina, synthetic mullite and calcined alumina in different proportions with clay. It is produced by sintering process. But the products are casting brick, brick, brick fused grain and unshaped refractory brick. High alumina refractory brick is widely used in iron and steel industry, non-ferrous metal industry and other industries.
- Q: How do corundum bricks bind?
- High temperature bonding clay can be used for bonding masonry
- Q: What kind of refractory material will be used in the glass kiln?
- The content of ZrO2 in the brick is about 66%, and the bulk density is 3.7g/cm3, which has better thermal stability and anti stripping property. The use of erosion serious investment outlet area and after the parapet wall in the powder melting furnace, observation hole brick and pathway of flame space and roof parapet wall brick, brick burner. But there are also AZS burner brick with mullite brick for brick kiln and transition two side clearance brick etc..
- Q: Can the fire clay be reused?
- Refractory soil cannot be reused.Clay refractory soil 1, characteristics and uses: Clay refractory brick is a weak acid refractory material, its thermal stability is good, suitable for hot air furnace, all kinds of boiler lining, and flue, smoke room, etc.. 2, product specifications form: standard shape, general, special-shaped and special-shaped brick. Physical and chemical properties of fireclay bricks.
- Q: What problems should we pay attention to in the use of fused zirconia corundum brick (fused zirconia corundum brick) in glass furnace?
- The expansion curves of fused cast AZS brick at 1000 DEG C near a crystal anomaly, its internal changes of ZrO2 crystal are reversible, with large volume change, therefore, products containing ZrO2, should not be used in the temperature of 1000 DEG C, often have sharp fluctuations in the position. When baking the kiln, the temperature can not be too large at 900~1150 degrees centigrade. Generally, the temperature can not exceed 15 degrees /h, and the temperature should be raised steadily. Some parts to prevent the cold, with other brick protection, to prevent explosion.
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Corundum Brick - Light Weight Corundum Mullite Bricks
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 m.t.
- Supply Capability:
- 1000000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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