1. How to avoid electrode breaking and tripping during steelmaking?

The following measures taken during the steelmaking process can effectively avoid electrode breakage and tripping:

(1) The electrode phase sequence is correct, counterclockwise.

(2) The scrap steel is evenly distributed in the steel furnace, and large pieces of scrap steel should be placed at the bottom of the furnace as much as possible.

(3) Avoid non-conductive materials in scrap steel.

(4) The electrode column is aligned with the furnace top hole, and the electrode column is parallel, and the furnace top hole wall should be cleaned frequently to avoid the accumulation of residual steel slag and force the electrode to be broken.

(5) Keep the electric furnace tilting system in good condition and keep the electric furnace tilting stable.

(6) Avoid clamping the electrode holder at the electrode connection and the electrode joint hole.

(7) Choose joints with high strength and high processing accuracy.

(8) The torque applied when the electrodes are connected should be appropriate.

(9) Before and during the electrode connection, prevent the electrode hole thread and joint thread from mechanical damage.

(10) Prevent steel slag or foreign objects from being embedded in the electrode holes and joints to affect the screw connection.

2. When steel mills use graphite electrodes, what should be paid attention to during crane lifting?

Regardless of whether the electrode is transported by a forklift or a crane, it must be carefully operated. During the electrode lifting process, damage to the electrode end and thread will cause serious problems to the use of the electrode, especially the threaded hole and the thread of the connector. When lifting the electrode, it is necessary to have a protective pad to avoid damaging the electrode end surface and the thread of the connector.

3. How to connect the electrodes correctly?

When connecting, use compressed air to blow clean the inside of the electrode hole, the electrode end surface and the joint. There should be no dust and foreign objects embedded. The connection should be kept clean and flat. When the two electrodes are screwed in to a certain extent (the gap is about 10mm), then Blow once with compressed air, and then tighten the electrode with torque pliers. The torque applied during tightening should be appropriate. If there is a gap in the connection after tightening, it must be withdrawn and reconnected until there is no gap.

4. Regarding the correct clamping position of the electrode holder

The electrode holder cannot be clamped between the electrode connection and the electrode threaded hole. It should be clamped between the white wires at both ends of the electrode. At the same time, before the electrode is clamped by the holder, the surface of the electrode and the holder should be clamped with compressed air. Blow clean to ensure good conduction of current and heat flow between the electrode and the holder, to prevent arcing from causing damage to the holder, thereby prolonging the life of the holder.