Refractory bricks / Fireclay bricks / Insulation bricks (LQFB)
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- Loading Port:
- Shanghai
- Payment Terms:
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- Min Order Qty:
- 1 m.t.
- Supply Capability:
- 111 m.t./month
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Specifications
Refractory Brick
1-Made from high quality alumina
2-Low thermal conductivity
3-SK series,custom made
4-.ISO9001 certificated
Fire/firecaly brick
Refractory brick is dense shaped refractory material. With high refractoriness and mechanical behavior under high temperature, refractory brick is the necessary material of high-temperature services, mainly used for industrial furnaces and kilns and thermal equipment.
Refractory brick has wide applications, mainly used in metallurgy, construction(cement and glass), petroleum, chemical industry, electric power and machine building.
Linquan series alumina bricks are high quality dry pressed alumina bricks, ranging from 35% to 95% in alumina content.
Fire clay bricks
Chemical and Physical Properties | LQHAB70 | LQHAB 60 | LQHAB 50 | LQHAB 80 | |
Chemical | Al2O3; ≥ | 70 | 60 | 50 | 80 |
Fe2O3; ≤ | 2.0 | 2.0 | 2.0 | 2.0 | |
Refractoriness (SK); ≥ | 38 | 37 | 36 | 39 | |
Bulk Density; ≥ | 2.30 | 2.20 | 2.10 | 2.40 | |
Apparent Porosity (%); ≤ | 23 | 23 | 23 | 23 | |
Cold Crushing Strength | 400 | 400 | 300 | 400 | |
(Kg/cm2); ≥ | |||||
Thermal Expansion (%) | 0.65 | 0.60 | 0.53 | 800 0.65 | |
at 1000°C | |||||
Permanent Linear Change (%) | 0.3 | 0.3 | 0.3 | 0.2 | |
at 1500°C × 2Hrs | |||||
Refractoriness under Load | 1580 | 1500 | 1470 | 1670 | |
High aluminum bricks
Chemical and Physical Properties | LQH-90 | LQH 85 | LQH-80 | |
Chemical | Al2O3; ≥ | 90 | 85 | 80 |
Fe2O3; ≤ | 1.0 | 1.0 | 1.0 | |
Refractoriness (SK); ≥ | 40 | 40 | 39 | |
Bulk Density; ≥ | 3.10 | 2.90 | 2.80 | |
Apparent Porosity (%);≤ | 18 | 20 | 20 | |
Cold Crushing Strength | 700 | 600 | 600 | |
(Kg/cm2); ≥ | ||||
Thermal Expansion (%) | 0.70 | 0.68 | 0.65 | |
at 1000°C | ||||
Permanent Linear Change (%) | 0 | 0 | 0.2 | |
at 1500°C × 2Hrs | ||||
Refractoriness under Load | 1,700 | 1,700 | 1,670 | |
- 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: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:What's the price of high alumina refractory bricks?
- The price of high alumina refractory bricks varies greatly according to the content of AL2O3.
- Q:How are the grades of high alumina bricks differentiated?
- In China, the content of Al2O3 in high alumina brick is usually divided into three categories: I, etc. - Al2O3 content > 75%; II, etc. - Al2O3 content is 60 to 75%; III and so on - Al2O3 content is 48 ~ 60%.
- Q:What are the reasons for the decline in the performance of high alumina bricks when we use high alumina refractory bricks?
- All the raw materials adding order, mixing time, material and material moisture trapped. 4, the pressure and the volume density of Pei brick and brick Pei size etc..
- Q:What is the price of the latest thermal insulation material?
- There are many kinds of insulation materials, and the price will fluctuate with the market. Small quantities of inquiry or procurement, then go directly to the local thermal insulation market, a wide variety of prices are basically the market price.
- 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'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:What are the requirements for refractory materials in heat treatment furnace?
- The structural strength of high temperature is evaluated by loading softening point. Load softening point is that under certain pressure (2 kg/ cm 2 = 0.2MPa) under the condition of heating rate to heating, measured the sample deformation (deformation for the original sample 0.6%) temperature. This temperature is called the softening point of the refractory. Sample size is Phi 36 x 50mm.
- Q:How much is one ton of high alumina refractory brick?
- Three high aluminum refractory brick Zhengzhou Kuwait is generally around 800. 32 years of experience, good.
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Refractory bricks / Fireclay bricks / Insulation bricks (LQFB)
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 m.t.
- Supply Capability:
- 111 m.t./month
OKorder Service Pledge
OKorder Financial Service
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