What are the manufacturing steps of graphite electrodes?

The manufacturing process of graphite electrodes mainly includes raw material selection, batching, kneading, molding, roasting and graphitization.

Specifications Of RP HP UHP Graphite Electrode

First of all, raw material selection is the first step in the manufacture of graphite electrodes. The raw materials of graphite electrodes are mainly petroleum coke and asphalt coke. The selection of these raw materials directly affects the performance and quality of graphite electrodes.

Secondly, batching is to mix the selected raw materials in a certain proportion to achieve the expected performance. The batching process requires precise measurement and control to ensure the stable performance of graphite electrodes.

Then, kneading is to mix and knead the prepared raw materials to form a uniform mixture. The kneading process has an important influence on the uniformity and density of graphite electrodes.

Next, molding is to press the kneaded materials to form the preliminary shape of the graphite electrode. The molding process requires precise control of pressure and temperature to ensure the shape and size accuracy of the graphite electrode.

Then, roasting is to heat treat the formed graphite electrode at high temperature to make its structure more stable. The roasting process requires precise control of temperature and time to ensure the performance and quality of the graphite electrode.

Finally, graphitization is to graphitize the roasted graphite electrode at high temperature to make it more graphitized and have better performance. The graphitization process requires extremely high temperature and long-term treatment, and is the most critical step in the manufacture of graphite electrodes.