Graphite Rod Everyone is familiar with the name of graphite. It is mined as a material and then processed into many graphite products. These graphite products are widely used in various industries such as graphite rods. But do you know what the selection criteria are for using them? The average particle size of the material directly affects the discharging conditions of the material. The smaller the average particle size of the material, the more uniform the discharging, the more stable the discharging conditions, and the better the surface quality. For forging and die-casting molds with lower surface and accuracy requirements, coarser-grained materials are generally recommended.
For electronic molds with high surface and precision requirements, it is recommended to use materials with an average particle size less than 4 μm to ensure the accuracy and surface finish of the processed molds. The smaller the average particle size of the material, the smaller the material loss, and the greater the interaction force between each ionic group. At the same time, the larger the particle size, the faster the discharging speed, and the smaller the roughing loss.
The flexural strength of a material is a direct reflection of its strength and indicates the tightness of its internal structure. Materials with high strength have relatively better wear resistance during discharge. For electrodes with higher precision requirements, materials with better strength should be used as much as possible.
If the materials have the same average particle size, a material with a higher resistivity will discharge more slowly than a material with a lower resistivity. For materials with the same average particle size, the strength and hardness of a material with a lower resistivity will be slightly lower than that of a material with a higher resistivity, and the discharge rate and loss will also be different. It is very important to choose materials based on actual application needs.
