What is the manufacturing process of graphite electrodes?

2019-08-08 15:05:23 nancy@carbographite. Markup 3 comments

Graphite ElectrodeS - RONGXING BRAND
 
Introduction
 
Graphite Electrodes is produced artificially by using carbon and selected binding materials such as pitch or tar. The specific characteristics of Graphite Electrodes are:
■ Low electrical resistivity
■ Good lubrication properties
■ High thermal conductivity
■ High thermal shock resistance
■ Chemically stable
 
Graphite Electrode Manufacturers
The basic production steps in the manufacture of Graphite Electrodes comprise the following:
■ Forming
■ Baking
■ Impregnation
■ Graphitising
■ Machining
 
Forming
The coke is crushed into specific particle sizes, depending on the final diameter and the individual application of the Graphite Electrodes. To bind the coke particles, controlled amounts of pitch are added. The resulting plastic mix is extruded through a forming press and cut into specified lengths.
 
Baking
The baking process is carried out at temperatures of 800°C - 1200°C. The pitch is carbonizing at this point and about 40% of the pitch evaporates.  
 
Impregnation
Bulk density and other physical properties can be improved by further pitch impregnation. All Rongxing graphite electrodes are impregnated in this way. This is why the regular power grade achieves minimum bulk
density of 1.62 g/cm3. 
 
Graphitising
The graphitising process takes place at approximately 2800°C - 3200°C. The amorphous carbon is transformed into graphite. 
 
Machining
Finally the Graphite Electrodes are machined to specified dimensions according to IEC 60239:2005 standard.
 
Rongxing - Graphite Electrodes professional manufacturers. 
Sales Manager: Ms Nancy Du
Mobile/Whatsapp: +86 15238006439

 
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  • The second largest in the country
  • Cumulative supply unit 330+
  • Cost-effective than the peer 20%
  • 48H rushed to the production site as soon as possible
Development, Maketing

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