Silicon nitride bonded silicon carbide products - aluminum electrolysis slot wit
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- Loading Port:
- Qingdao
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- Min Order Qty:
- 5 m.t
- Supply Capability:
- 500 m.t/month
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Application: aluminum electrolysis bath side wall, the chemical industry reaction tank, a variety of high temperature abrasion resistant lining board, outlet bricks, furnace heating furnace and the aluminum liquid conveying pipe.
Features: has the advantages of long service life, high hardness, high temperature strength, liquid aluminum erosion and thermal erosion abrasion resistance, anti acid and alkali, corrosion resistance, low linear expansion rate higher characteristic, thermal conductivity.
Product name
Silicon nitride bonded
silicon carbide products
Chemical composition (%)
SiC ≥ 72.0
Si3N4 ≥ 21.0
Fe2O3 ≤ 0.3
Si ≤ 0.3
Display the porosity (%)
≤ 16.0
The volume density（g/cm3）
≥ 2.68
Compressive strength at room temperature （Mpa）
≥ 180.0
Flexural strength
(Mpa）
Normalatmospheric temperature
≥ 45.0
1400℃ ≥ 55.0
Thermal conductivityλ（W/m·K）
The experimental temperature
650℃
19.5
The experimental temperature
1000℃
17.2
Coefficient of temperature conductivity
α（cm2/s）
The experimental temperature
650℃
0.064
The experimental temperature
1000℃
0.053
Linear expansion rate
α30—1000
4.02×10－6（k-1）
α30—1100
4.06×10－6（k-1）
- Q:How to test the aluminium bricks of high alumina refractory bricks?
- Before making bricks, the raw materials are usually tested and tested to see if the aluminum content is up to standard
- 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 requirements for refractory materials in heat treatment furnace?
- Fire resistance is an important performance index of refractory materials, but it does not represent the highest temperature in actual use of refractory materials. In actual use, refractories also bear certain pressure, therefore, must consider the high strength at high temperature refractory material, which is in high temperature under certain pressure without deformation, such as the NZ-40 refractory refractory degree up to 1730 DEG C, but the maximum temperature is only 1350 degrees celsius.
- Q:What are the high aluminum bricks made of?
- We specialize in the production of various LeiBao refractory refractory material, such as corundum, zirconia products, alumina hollow ball products, mullite products and so on.
- 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:What are the lining structures of lime rotary kilns and what are the requirements for refractories?
- The current configuration of domestic calcining active lime rotary kiln refractories are as follows: the discharge end of low cement high alumina castable with 3% steel fiber; the cooling zone and the firing zone: dry magnesia spinel brick with high aluminum brick with high temperature; preheating: high alumina brick; low temperature preheating zone: clay brick light clay brick; feeding end: low cement high alumina castable with 3% steel fiber; in addition, brick size also have the corresponding requirements; dimensional tolerances: dimensional tolerances used in different parts of the requirements are not the same, the general control in 2mm; corner damage: general permit edge damage 40mm and 5mm deep within angle loss in the hot and cold surface is allowed to have only one, three edges and the length of not more than 50mm; there are cracks parallel to the use of surface crack is not allowed, cracks of brick surface are allowed.
- Q:What are the requirements for Rubble backfill height?
- Backfill should be filled with large stones, big face, small face upward, the decoration is stable, and then use small stones leveling, the gap between the stones can be swept into the slag, gravel, so that the gap filled.
- Q:Can high alumina brick resist carburizing?
- Louzhu can use heavy impervious material, it is neither high alumina brick nor mullite, this product can resist seepage and have good compressive strength
- Q:What causes breakage of refractory bricks?
- There are many factors that lead to the damage of refractory brick, can be divided into: the chemical loss (e.g. salt penetration, redox phenomenon), heat loss (burning, thermal shock), mechanical loss (kiln deformation, thrust, brick masonry quality etc.).
- Q:What are the high temperature refractory mortars made of?
- Products used in metallurgy, building materials, machinery, chemical, power industry, industrial thermal furnace, for masonryBuilding clay brick, high alumina brick and corundum brick have the characteristics of full grey seam, good airtightness, high bonding strength, high temperature performance and suitable construction time
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Silicon nitride bonded silicon carbide products - aluminum electrolysis slot wit
- 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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