What should pay attention when choose good graphite electrode products?

With the continuous development of our country's industry, graphite electrodes have become more and more widely developed in the market, and gradually occupy the leading position in the market. However, when choose graphite electrode materials, how should we get the right one?

We know that graphite electrode has a very high melting point, because it has extremely high heat resistance, can bear the current value, reduce the loss of the electrode, thereby further improving the production efficiency; but when the current value is very small, the loss of the electrode Will increase. When the area is constant and the pulse width is constant, the peak current will reach a certain value, continue to increase, and then the phenomenon of unstable processing occurs. The electrode and processing will produce arc burns, which will greatly reduce the production efficiency.

The larger the current of the graphite electrode, the larger the pit of the electric erosion, so that as the peak current increases, its surface becomes more and more rough. The thin slice electrode is almost at the point of contact with the workpiece discharge, the slice electrode can not withstand excessive current, which easily damaged, so the current should be turn down at the beginning, and then gradually increase the peak current until the discharge is stable,the processing speed is at the fastest.

The size of the graphite particle determines its degree of loss. The larger the particle is, the greater the degree of loss is, the smaller the loss of the particle is, and the graphite particle also determines the roughness of the surface. So please pay attention when selecting the graphite electrode material.

JUST FOR YOUR REFERENCE.
emily@sinomgroup.com