What are the characteristics of graphite electrode raw materials

Issuing time:2021-10-11 09:02

The key raw materials of graphite electrode produced by graphite electrode manufacturers have the following characteristics.

1、 Faster;

The charging and discharging rate of graphite is 2-3 times faster than that of copper, and the material is not easy to deform. It has significant advantages in the production and processing of thin rib electrode. The softening point of copper is 1000 degrees, which is easy to deform due to heat. The rising temperature of graphite is 3650 degrees. Relatively speaking, the linear expansion coefficient of graphite material is only 1 / 30 of that of copper;

2、 Light weight;

The relative density of graphite only needs 1 / 5 of that of copper. When large and medium-sized electrodes are used for charge discharge production and processing, it can reduce the burden of CNC lathe (EDM), which is more suitable for the application of large and medium-sized die shells;

3、 Low consumption;

Because the flame oil contains c molecules, during charge discharge production and processing, the high temperature causes the c molecules in the flame oil to be dissolved, and a protective film is formed on the surface of the graphite electrode to offset the loss of the graphite electrode;

4、 No burrs;

After the production and processing of copper electrode, the burr needs to be removed by technology, while there is no burr after the production and processing of graphite electrode, which not only saves a lot of costs and human resources, but also makes it easier to carry out automatic technology production together;

5、 Easy to polish;

As the friction resistance of graphite drilling is only 1 / 5 of that of copper, it is easier to carry out technical grinding and polishing in practical operation;

6、 Low cost

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