100mm Male-Female Threaded Graphite Electrodes

Φ100mm (4-inch) male-female threaded graphite electrodes are widely used in small to medium-sized high-temperature industrial equipment due to their moderate size and excellent conductivity. Below are their key application areas and specific use cases:

Electric Arc Furnace (EAF) Steelmaking

Used in small EAFs (capacity ≤20 tons) or medium-frequency furnaces to melt scrap steel.

Advantages: The male-female threaded design ensures quick electrode connection, minimizing downtime. The 100mm diameter is suitable for low to medium current loads (e.g., 5,000–10,000A).

Ladle Furnace (LF) Refining

Used for secondary refining of molten steel to adjust composition and temperature.

Ferrosilicon/Silicomanganese Smelting

Acts as a conductor in submerged arc furnaces to reduce ores (e.g., quartz, manganese ore).

Note: Anti-oxidation coatings are recommended due to the highly oxidizing environment in silicon production.

Industrial Silicon (Metallurgical Silicon)

Used to reduce quartz sand at high temperatures (>1600°C). Φ100mm electrodes are suitable for small to medium furnaces (e.g., 6,000–12,000 kVA).

Yellow Phosphorus Electric Furnaces

Decomposes phosphate rock via electrothermal processes, requiring electrodes resistant to high temperatures and chemical corrosion.

Calcium Carbide Furnaces

Used in small-scale carbide furnaces (≤10 MW), where electrodes must withstand strong reducing atmospheres.

Alumina (Corundum) Smelting

Produces brown or white fused alumina, with electrodes enduring arc temperatures exceeding 2000°C.

Graphitization Furnaces

Serves as heating elements or conductors for high-temperature graphitization of carbon materials.

Research Arc Furnaces

Small experimental furnaces in universities or research institutes for high-temperature material synthesis or melting tests.

Vacuum Melting

Melts specialty alloys in vacuum environments, requiring high-purity graphite electrodes to avoid contamination.

Key Usage Considerations

Current Load: The allowable current density for Φ100mm electrodes is typically 15–25 A/cm². Overloading may cause overheating and breakage.

Connection Safety: Threads must be clean and evenly tightened to prevent poor contact, arcing, or localized overheating.

Consumption Management: Electrode ends must be clamped regularly to prevent excessive consumption and joint detachment.

Selection Recommendations

Furnace Compatibility: Confirm furnace power and current requirements. Φ100mm electrodes are suitable for small to medium equipment (≤15 MW).

Anti-Oxidation Needs: For silicon or phosphorus production, choose anti-oxidant impregnated electrodes (e.g., aluminum or borate coatings).

For specific process parameters (e.g., furnace dimensions, voltage/current), further optimization of electrode usage can be provided.