Guide to Graphite Electrodes
| Unit | AC Furnace | DC Furnace | |||
|---|---|---|---|---|---|
| 350~450mm 14"~18" |
500~700mm 20"~28 |
550~800mm 22"~32" |
|||
| Features | RP | UHP | UHP | UHP | |
| Bulk density | g/cm3 | 1.58~1.70 | 1.65~1.76 | 1.66~1.74 | 1.68~1.75 |
| Specific resistance | μΩm | 6.0~8.5 | 4.5~6.5 | 4.5~6.5 | 4.2~5.5 |
| Young's modulus | kN/mm2 | 8~12 | 11~16 | 9~14 | 9~13 |
| GPa | 8~12 | 11~16 | 9~14 | 9~13 | |
| kgf/mm2 | 800~1,200 | 1,100~1,650 | 950~1,400 | 900~1,300 | |
| Bending strength | N/cm2 | 1,000~1,400 | 1,200~1,800 | 1,000~1,500 | 1,000~1,500 |
| MPa | 10~14 | 12~18 | 10~15 | 10~15 | |
| kgf/cm2 | 100~140 | 120~180 | 100~150 | 100~150 | |
| Thermal expansion coefficient (R.T. to 400°C) |
×10-6/゚C | 0.8~1.5 | 0.8~1.5 | 0.5~1.0 | 0.5~0.9 |
| ×10-6/゚F | 0.4~0.8 | 0.4~0.8 | 0.3~0.6 | 0.3~0.5 | |
| True density | g/cm3 | 2.20~2.23 | 2.20~2.23 | 2.20~2.23 | 2.20~2.23 |
| Total porosity | % | 23~29 | 20~26 | 21~26 | 20~25 |
| Ash content | % | Less than 0.2 | Less than 0.2 | Less than 0.2 | Less than 0.2 |
How can custom graphite electrodes benefit precision manufacturing processes?
Custom graphite electrodes offer tailored solutions that align precisely with the unique specifications and requirements of specialized manufacturing processes. In precision manufacturing-such as the production of high-performance parts in aerospace, electronics, medical devices, and specialized tooling-standardized electrodes may not meet the exact dimensional, electrical, or thermal needs of the application.
Custom graphite electrodes can be engineered with specific shapes, sizes, densities, and purity levels to match the precise demands of the manufacturing setup. For instance, a manufacturer producing intricate components with tight tolerances may require electrodes with complex geometries that only custom fabrication can provide. Additionally, customization allows for the optimization of electrical conductivity and thermal resistance, ensuring uniform material removal or deposition during processes like Electrical Discharge Machining (EDM) or advanced smelting. By using custom graphite electrodes, manufacturers can achieve higher accuracy, better surface finishes, and improved consistency in their output.
Furthermore, customization enables the integration of specific material grades that withstand aggressive machining environments or specialized chemical exposures. This adaptability not only enhances product quality but also reduces waste, increases tool life, and improves overall process efficiency. Ultimately, custom graphite electrodes empower industries to push the boundaries of what's possible in precision engineering, ensuring that the tools and materials used are as specialized and refined as the final products themselves.
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