Reasons for Special Surface Treatment of Graphite Electrodes: Reducing Adhesion and Enhancing Mechanical Strength

In some applications, graphite electrodes tend to adhere to the workpiece material, affecting the machining results. For example, at high temperatures, graphite electrodes may adhere to molten metal, leading to increased electrode wear. To reduce adhesion, the following measures can be taken:

Surface coating: Applying a low-adhesion material (such as a fluorinated coating) to the electrode surface reduces contact with the processed material.

Surface modification: Altering the chemical properties of the electrode surface through chemical or physical methods to make it more inert.

These treatments can effectively reduce adhesion and improve electrode efficiency.