|
Side-wall blocks intended for side-wall lining of aluminium electrolytic cells
 |
 |
|
Technical characteristics |
Unit of measurements
|
Typical values
|
|
| Graphite content |
%
|
20
|
30 |
| Bulk density |
g/cm3
|
1.56
|
1.55 |
| Real density |
g/cm3
|
1.92
|
1.93 |
| Total porosity |
%
|
19
|
20 |
| Open porosity |
%
|
16
|
16 |
| Compression strength |
MPа
|
35
|
36 |
| Flexural strength |
MPа
|
11
|
12 |
| Rappoports relative elongation in cryolite-alumina melt* |
%
|
0.7
|
0.6 |
| Temperature coefficient of linear expansion, (20-520)0С |
10-6 •K-1
|
2.2
|
2.1 |
| Heat conductivity at 200C |
W/m·K
|
11
|
12 |
| Ash content |
%
|
2,5
|
2.3 |
* - measurements perpendicular to the direction of extrusion. Indicated values are given as average values of properties and they do not constitute specification. Side-wall blocks are manufactured on the basis of electrically calcined anthracite.
Dimensions of side-wall blocks
|
Maximum dimensions, mm
|
Standard tolerances, mm
|
|
| Thickness |
400
|
± 3
|
| Height |
800
|
± 5
|
| Width |
720
|
± 3
|
Chief expert in cathode products churilin@ ukrgrafit.com.ua.