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1, good machining performance: cutting resistance of copper 1/4, the processing efficiency is 2-3 times the copper; <br />
2, the electrode is easy to polish: graphite electrode without burr, with a simple surface treatment of sandpaper and can greatly avoid the electrode shape and size of the distortion caused by external forces;
3, the electrode consumption is small: good electrical conductivity, low resistivity, copper 1 / 3-1 / 5, rough processing can be achieved without loss of discharge;
4, the discharge rate of "fast 1-2 times the rate of copper, roughing up to 0.5 ~ 0.8mm gap, the current up to 50 ~ 100A;
5, light weight: the proportion of 1.7 to 1.9, for the copper 1/5, for large electrodes can greatly reduce the working weight, reduce machine load and difficulty of manual adjustment;
6, high temperature: sublimation temperature of 3650 ℃, high temperature conditions do not soften the electrode to avoid the deformation of thin-walled workpiece;
7, the electrode deformation is small: thermal expansion coefficient <6 TCEX10-6 / ℃, only copper 1/4, to improve the size of the discharge accuracy;
8, the electrode design is different: the graphite electrode is easy to clear angle, you can usually by the number of electrodes of the workpiece design into a complete electrode to improve the accuracy of the mold, and reduce the discharge time;