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Electrodes Paste
Electrodes Paste
Electrodes Paste
   
Electrode Paste  is  made of high quality anthracite and coal tar pitch, used as self-baking electrode in close or open ore furnaces.

Chemical  and  physics  properties  of  electrode  paste

Items
Unit
Sealing Paste
Standard Paste
Chemical Paste
1
2
1
2
3
Ash (max.)
%
4.0
6.0
7.0
9.0
11.0
11.0
Volatiles (max.)
%
15.5
15.5
13.5
15.5
15.5
15.5
Resistivity (max.)
μΩm
65
75
80
85
90
90
Compressive Str. (min.)
Mpa
18.0
17.0
22.0
21.0
20.0
18.0
Bulk Density (min.)
g/cm3
1.38
1.38
1.38
1.38
1.38
1.38
Extension Rate
%
5-20
5-20
5-30
15-40
15-40
5-25

Remarks:
1)       Extension rate is for reference only.
2)       Chemical paste is maily used in partial-sealed calcium carbide ore furnace.
3)       The date in the table is for reference, the practical data can be mutually discussed and determined as per requirements.
4)       Small paste scrap diameter less than 50mm will be lower than 3% in each delivery.
 
Quality Index of Cathode paste for Aluminium

Items
Unit
Paste Stamped
Around bar steed
Paste stamped between cathodes
Paste Stamped around cathodes
LTL-1
LTL-2
LTL-3
Ash (max.)
%
4
7
7
Volatiles (max.)
%
9-13
8-12
7-11
Resistivity (max.)
μΩm
73
73
73
Compressive Str. (min.)
Mpa
25
18
17
Bulk density (min.)
g/cm3
1.44
1.42
1.44
Real density (min.)
g/cm3
1.87
1.86
1.87
Operating temperature
℃
100-120

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