Carbon serious product - pre baked anode

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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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Product Description:

 

Features: the use of petroleum coke, asphalt and other raw materials mixing extrusion forming, and then after high temperature calcination process is made, as conductive electrode in aluminum electrolytic tank.

 

Application: suitable for the electrolytic aluminum industry, with low ash, low sulfur, characteristics of plastic, high strength.

 


Serial number

Item
 The parameter index  

  

 

To ensure that the value of

 
  

Typical values

 
1
 The volume density
 g/cm3
 1.56(Min)
 1.56 -1.60
 
2
 Resistivity
 Microohm-mu
 56(Max)
 52.0-56.0
 
3
 True density 
 G/cm3
 2.06(Min)
 2.06-2.10
 
4
 Compressive strength 
 Mpa
 38(Min)
 38-45
 
5
 
The reaction of carbon dioxideCO2 
 Residual 
 %
 91(Min)
 91-95
 

 
 Ash
 %
 2.5(max)
 1.0-2.5
 
6
 Air reaction
  

Residual

 
 %
 92(Min)
 93-97.5
 

 
 Ash 
 %
 2.0(max)
 0.1-2.0
 
7
 Thermal conductivity 
 W/mk
 3.0(Min)
 3.0-4.5
 
8
 High flexural strength
 Mpa
 9.0(Min)
 9.0-13.0
 
9
 Permeability
 NPm
 2.3(Max)
 0.5-2.3
 
10
 Thermal expansion rate
 K-1
 4.0*10-6 (max)
 3.0-4.0
 
11
 
Ash Ash
 %
 0.5(max)
 0.1-0.5
 
12
 
Iron Fe
 ppm
 374(max)
 58-374
 
13
 
Silicon Si
 ppm
 275(max)
 54-275
 
14
 
Sulfur S
 %
 3.0(max)
 1.0-3.0
 
15
 
NickelNi
 ppm
 250(max)
 250-182
 
16
 
VanadiumV
 ppm
 150(max)
 69-150
 
17
 
SodiumNa
 ppm
 100(max)
 42-100
 

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Q:What are the characteristics of high alumina bricks?
High thermal stability, fire resistance above 1770. Slag resistance is good, used for masonry steel smelting furnace, glass furnace, cement rotary furnace lining. High R.U.L, low creep high alumina brick with high grade bauxite, fused corundum, fused mullite as main raw material of high-grade refractory materials.
Q:What are the reasons for the spalling of refractory bricks in the production of lime kiln?
Therefore, the choice and masonry of refractory bricks are of vital importance. If there is a brick kiln kiln off block process of reproduction, is now because of the use of refractory brick kiln material mostly three grade high alumina bricks. The content of AL2O3 is about 55%, of which the content of Fe2O3 is about 2%, which is weak, and the alkali corrosion resistance is a little worse. In a containing three grade high alumina bricks in the composition of AL2O3, Si2O3, and other elements also contain K, Na trace, were the most, thus causing the system of the low melting point is very low, even at 1400 DEG C has been liquid phase, and generate CaAL12O19 limestone and calcium feldspar etc.. Form corrosion loss. Therefore, a long time will cause the loss of block. On the one hand, it may be caused by construction.
Q:What is the apparent porosity of high alumina brick?
Total porosity is porosity refers to the total volume of sample porosity in the percentage of total volume of samples. Apparent porosity refers to the percentage of the total volume of openings, pores, and total specimens in the sample.
Q:Use of high alumina refractory bricks?
High alumina brick refractory than clay refractory bricks and brick refractory degree are higher, up to 1750~1790 DEG C, which belongs to high-grade refractory materials.
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.
Q:What are the grades of high alumina bricks?
According to the size of high aluminum brick is divided into: standard brick, special-shaped brick.
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:Does the chimney have high acid resistance?
The chimney particles and gases, mostly coal tar products, material acidic, therefore, take good acid resistance, acid proof brick, Grouts also used potassium silicate clay acid is preferred.
Q:What kind of material is the general metal case?
We usually discuss the electromagnetic radiation of computer enclosures, mainly RF radiation, followed by MF leakage.Switch signal of RF radiation from computer high-speed leakage, such as one of the energy radiation is CPU frequency, graphics, display output line, keyboard, is the source of the operating characteristics of the computer leaked out, is also the main part of computer security.For the absorption of radio frequency radiation, the best is the use of copper materials, the use of other metals can also, thickness enough on the line.The most vulgar description is that people can sit in the case is a good thing.
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

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