Manufacturing process of graphite electrodes
Raw material selection: Petroleum coke is a by-product of the oil refining process and is the main raw material for graphite electrodes.
Calcination: The raw materials, mainly petroleum coke, undergo a process called calcination.
Mixing and molding: The calcined material is mixed with coal tar pitch and, in some cases, other additives.
Baking: The formed electrodes are baked in specialized ovens or furnaces.
Impregnation (optional): Some graphite electrodes may undergo an impregnation process.
Graphitization: The baked electrodes are then graphitized, a high-temperature process that typically exceeds 2500°C (4532°F).
Machining: The graphitized electrodes are machined to achieve the final dimensions and specifications required for various industrial applications.
Quality Control: Throughout the manufacturing process, stringent quality control measures are implemented.
Finishing and Coating (optional): Depending on the application, the electrodes may undergo a finishing process such as surface coating or treatment to enhance their performance or extend their service life.
Packaging and Shipping: The finished graphite electrodes are carefully packaged to prevent damage during shipping.
Graphite Electrode Related Parameters
| High Power Graphite Electrode | ||
| Propertises | unit | Numerical value |
| Bulk density | g/cm3 | 1.65-1.75 |
| Specific resistance | μΩ·m | 6.5-7 |
| Ash content | % | 0.3 |
| Flexural strength | Mpa | 10-10.5 |
| Elastic modulus | Gpa | 12-14 |
Customer Visits and Company Environment
Our company's products are widely used in rare earth, magnetic materials, steel, machinery, metallurgy, glass, petrochemical, national defense research, aerospace, vacuum coating industry. We strictly test the composition and performance of the raw and auxiliary materials of each product. During the product processing, we also conduct various mechanical, spectral analysis, and non-destructive testing measurements to ensure that the product has a complete set of quality assurance systems from production and manufacturing, process testing, finished product inspection, and after-sales service, strictly guaranteeing the quality of the factory products!