|
Graphite anodes and bars for magnesium industry.
| Technical characteristics |
Units of
measurements |
Typical values
|
|
| Grade |
BV
|
BN
|
|
| Specific electrical resistance |
µОhm·m
|
6.3
|
5.4
|
| Compression strength |
МPа
|
25
|
32
|
| Flexural strength |
МPа
|
12
|
17
|
| Bulk density |
g/sm3
|
1.65
|
1.77
|
| Real density |
g/sm3
|
2.24
|
2.24
|
| Total porosity |
%
|
26
|
21
|
| Open porosity |
%
|
22
|
14
|
| Heat conductivity at 20 C |
W/m·K
|
130
|
190
|
| Temperature coefficient of linear expansion, (20-520) C |
10-6 •K-1
|
2.2
|
2.3
|
| Ash content |
%
|
0.2
|
0.2
|
Indicated values are given as average values of properties and they do not constitute specification.
BV is a grade of bars, recommended for making complete sets of top mounted anodes;
BN is a grade of bars, recommended for making complete sets of bottom mounted anodes.
BV is a grade of bars, recommended for making complete sets of top mounted anodes;
BN is a grade of bars, recommended for making complete sets of bottom mounted anodes.
|
Maximum dimensions**, mm |
Standard tolerances, mm
|
|||||||
| Width |
330
|
375
|
412
|
330
|
±5*
±2** |
|||
| Height |
150
|
200
|
±5*
±2** |
|||||
| Length |
2250
|
+50*
±5** |
||||||
* - partial machining;
** - full machining.
Anodes are completed with commercially produced bars 330mm, 375mm and 412mm wide up to the maximum anode width of 2246mm. Standard tolerance on the width of anode depends on the number of bars.
The protection of top mounted anodes against air oxidation is ensured by impregnation of a current-conducting part of the anode with metaphosphate melts and other compounds.
Anodes can be supplied in a set consisting of bars or being glued.
Chief expert in anodes for magnesium industry and electrode pastes sorokous@ ukrgrafit.com.ua.
** - full machining.
Anodes are completed with commercially produced bars 330mm, 375mm and 412mm wide up to the maximum anode width of 2246mm. Standard tolerance on the width of anode depends on the number of bars.
The protection of top mounted anodes against air oxidation is ensured by impregnation of a current-conducting part of the anode with metaphosphate melts and other compounds.
Anodes can be supplied in a set consisting of bars or being glued.
Chief expert in anodes for magnesium industry and electrode pastes sorokous@ ukrgrafit.com.ua.