HP Graphite Electrode For STEEL
Fine-grained and dense, isotropic high purity graphite has good machining performance, easy to form and modify. It will not deform when making thin and deep bone electrodes. Low density makes it not deform so that it is suitable for making tool electrode for large parts or mold processing, and be small in overall mass. Graphite is easy to process, and its processing efficiency is at least three times higher than that of copper. The discharge speed is also much faster than copper. As a high-efficiency, short delivery time mold, graphite is the trend of development.
Graphite Electrode
Advantages of Graphite
Design of Electrode
Can reduces the number of individual electrodes/ Can be made into combined electrode
Can save electrode fixture system and cost
Fabrication of Electrode
High speed milling is three times faster than copper rough machining
High speed milling and finishing is 5 times faster than copper
Good processability
Can achieve complex geometric modeling
Light Weight, Less than 1/4 of Copper Density
Good thermal stability (No deformation)
Can reduce the number of individual electrodes/ Can be made into combined electrode
No need to deburr
Easy electrode clamping
Electric Discharge Machining
Low electrode loss during roughing
High working removal rate
Can reduce the number of individual electrodes/ Can be made into combined electrode
No pollution to environment in electrolyte
Light weight, less than 1/4 of copper density
Excellent thermal stability, the electrode is not deformed
The use of fine-grain graphite electrodes can produce high-quality workpiece surfaces
Graphite Electrode
技术指标:Technical indicators:
高功率石墨电极技术指标:High power graphite electrode technical indicators:
指标Index |
单位unit |
公称直径 300-500mm Nominal Diameter |
|
电阻率Resistivity |
电极electrode |
μΩm |
7.0 |
接头connector |
6.5 |
||
抗折强度Flexural strength |
电极electrode |
MPa |
10.0 |
接头connector |
14.0 |
||
弹性模量Elastic Modulus |
电极electrode |
GPa |
12.0 |
接头connector |
16.0 |
||
灰分Ash |
电极electrode |
% |
0.3 |
接头connector |
|||
体积密度bulk density |
电极electrode |
g/cm3 |
1.64 |
接头connector |
1.72 |
||
热膨胀系数Thermal expansion coefficient |
电极electrode |
10-6 1/℃ |
2.4 |
接头connector |
2.2 |
允许电流:Allowable current
公称直径(mm)Nomical diameter(mm) |
允许电流(A)allowable current(A) |
300 |
13000-17400 |
350 |
17400-24000 |
400 |
21000-31000 |
450 |
25000-40000 |
500 |
30000-48000 |