High Alumina Nitride Bonded Silicon Carbide Refractory Brick for Aluminum Electrolysis Cell Side Wall
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- Loading Port:
- Qingdao
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 5 m.t.
- Supply Capability:
- 500 m.t./month
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Nitride Bonded Silicon Carbide Refractory BrickThe product can be made at different sizes&Specifications on basis of your design. Widely used as a good lining materials in large or medium Aluminum reduction cells., steel kilns or ceramic furnace, etc.
It has good advantages of:
Low thermal conductivity
Low thermal expansion
Excellent oxidation resistance
Excellent corrosion resistance
Long duration
The Process: Mixing, Moulding, Drying, and Nitride Sintering at 1100-1500 celsius degree. Package: Normally, 1100kg or1200kg into a Non-fumigated crate, each piece is isolated by good padpaper, bubble film, or foam board, etc.
Note: All of our export package materials confirms to IPPC standard, with an official mark on them. Parameter: Item unit dataSiC % ≥ 72Si3N4 % ≥ 21Fe2O3 % ≤ 0.5Density g/cm3 2.65-2.70Apparent porosity % ≤ 18Modulus of Rupture Mpa(at ambient temperature) 42Mpa(1400 degree) 45Compressive strength MPA≥ 150Thermal conductivity1250degree W/m. K 15-18Acid-proof alkaline ExcellentSize Difference 0-100mm ± 1.0101-300mm ± 1.5301-500mm ± 2.0501mm above ± 0.5%Composite Sidewall Slab for Aluminum Reduction Cell (side wall block, combo brick)DescriptionWith special bonding developed by us, stick graphitic carbon pieces with SiC brick tightly. Can be used directly at Aluminum reduction cells. The feature: Excellent chemical&oxidation resistance, Longer duration, convenient for installation. And so on. Specification: 610mm*400mm*75/210mm, or other sizes as per your requirement.
- Q: What is the price of the latest thermal insulation material?
- Also through online pre understand the products and prices, and now have large-scale manufacturers are generally opened on the cable business. Goods than three, manufacturers on-site inspection, confirm the quality of goods after considering cooperation.
- Q: How many cubic bricks does a high alumina brick have?
- It is related to the content of aluminum in high alumina bricks.
- 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: What are the common thermal insulation materials for thermal conductivity?
- The single organic insulation material should be the best polyurethane in the field. In accordance with the production process can be divided into on-site foam polyurethane and factory prefabricated rigid foam polyurethane board. The scene is polyurethane foam isocyanate and polyol to cool (polyether or polyester) two components as the main raw materials with additives, the on-site spraying construction with thermal insulation and waterproof function of the rigid foam material.
- Q: What does refractory consist of?
- According to the chemical characteristics of refractory raw materials can be divided into acidic refractory materials, such as silica, zircon etc.; neutral refractory raw material, such as corundum, bauxite, mullite (acidic) (acidic), Ge (alkaline) iron and graphite; alkaline refractory materials, such as magnesite, dolomite, magnesium sand calcium sand.
- Q: The difference between light high alumina brick and heavy aluminum brick
- Lightweight high alumina brick, also called high alumina insulation brick. Alumina content of 48% or more, mainly from mullite and glass phase or corundum composition of lightweight refractory. Volume density 0.4 - 1.35g/cm3. Porosity 66% - 73%, compressive strength 1 - 8MPa. Better thermal shock resistance. Usually, a high alumina clinker is added with a small amount of clay. After grinding, it is poured and shaped in the form of slurry by gas generation or foam method, and it is fired at 1300 - 1500 DEG C. Sometimes industrial alumina can be used instead of some bauxite clinker. Used for lining and insulation of masonry kilns, as well as for areas where there is no strong, high temperature molten material erosion and erosion. When contacting the flame directly, the surface contact temperature shall not be higher than 1350 degrees centigrade.
- Q: What is the difference between high alumina brick and clay brick?
- There must be a difference. They vary in color from the amount of aluminum, the weight, the temperature, and the color. For example: 75 high aluminum and 43 clay bricks, 75 single weight 4.5kg or more. 43 3.65kg or so, the use of temperature 75, high aluminum in about 1520, 43 of brick 1430 or so, the color of 75 pan white, 43 of the Loess color. In short, the difference is great.
- 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: Use of high alumina refractory bricks?
- Because of the high Al2O3 high aluminum products, low impurity content, the formation of fusible vitreous body less so than the clay brick high load softening temperature, but because mullite crystallization has not formed the network organization, so the load softening temperature is not high silica brick.
- Q: High alumina brick 80 with which high aluminum cement?
- In order to maintain a reasonable comprehensive lining, should adopt high quality aluminum refractory mud, such as Sichuan resistance card phosphate refractory mud, refractory clay, high alumina refractory mud PA-80 LN-75, if you use the card volume of Sichuan resistant refractory clay masonry, the effect is better.
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High Alumina Nitride Bonded Silicon Carbide Refractory Brick for Aluminum Electrolysis Cell Side Wall
- Ref Price:
-
- Loading Port:
- Qingdao
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 5 m.t.
- Supply Capability:
- 500 m.t./month
OKorder Service Pledge
OKorder Financial Service
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