Graphitized electrodes EG/RP with a diameter of 75 mm and nipples for them are made on the basis of petroleum and needle cokes
and coal tar pitches. These products are used in arc steelmaking furnaces, refining,
ferroalloy furnaces, ore thermal and other electrical installations.
The technology for manufacturing graphite electrodes includes the preparation of raw materials - crushing and calcination,
mixing fillers with pitch and molding, firing, impregnation, graphitization and mechanical processing.
For the production of pressed blanks, extrusion and vibration molding methods are used.
Electrodes with a diameter of 75 mm are available in lengths from 1200 to 1800 mm. There are sockets at both ends of the electrode
with cylindrical thread for screwing in the nipple. The nipple is necessary for extending the electrode
as it is consumed during the steelmaking process.
Each electrode is equipped with a nipple. At customer's request, nipples can be supplied separately from electrodes
or in addition to the kit.
Technical characteristics
Unit
Typical values for electrode
Typical values for nipple
Diameter Diameter
mm
75
46.14
Volume density Apparent density
g/cm3
1.59
1.66
Content of ash impurities Ash content
%
0.5
0.3
Electrical resistance Electrical resistance
µOhm•m
8.1
7.0
Thermal coefficient of linear expansion, (20-520)°C CTE coefficient