Electrode leakage causes

Electrode leakage paste is the melted liquid electrode paste in the electrode, from the broken electrode Jane outflow leakage paste occurs in two locations: one is the bottom ring (copper tile) below, and the third is the bottom ring above the copper tile.

The reason occurs by the following points:

① electrode paste quality problems: electrode paste volatile content is too high, low softening point, so that the three-phase electrodes for a long time to continue to underburn state

The electrode paste quality problem: the volatile content of the electrode paste is too high, the softening point is too low, so that the three-phase electrode continues to underfire for a long time. Ash content is too high, so that the electrode consumption is too fast, the sintering speed of the electrode can not meet the consumption speed. Caused by the leakage of paste phenomenon;

② add paste in an unreasonable way not according to the process requirements to add paste, resulting in the paste column added too high, resulting in slow evaporation of volatile matter, the electrode is not burned; paste column is too high, so that the electrode weight exceeds the clamping force of the electrode clamping system, resulting in the electrode sliding, resulting in electrode leakage paste.

③ process operation reasons not according to the process operating procedures for the length of the press and release, time interval press and release electrode, a one-time electrode press and release too long, a short period of time continuous press and release electrode many times, resulting in electrode under-firing caused by leakage of the paste: the secondary operating current is too low, the secondary voltage is too high, the power factor is high, the active power is large, resulting in the sintering of the electrode is slow, consume fast, resulting in electrode leakage of the paste; not according to the process requirements for the control of electrode length of the working end, resulting in the working end is too short, into the furnace, the electrode is too short. The working end of the electrode is too short, the depth of the furnace is shallow, the electrode arc operation is serious, the electrode consumption is fast, the sintering is slow, and the electrode leakage is caused by the pressure and release of the electrode; the roasting electrode is not according to the technological requirements to enhance the current, load, resulting in the penetration of the electrode leakage of the paste: not according to the technological requirements of the target to join the raw, over-burning over the standard of the lime, the fixed carbon of the low carbon material, add the granularity of the furnace material is unqualified, the low-quality qualified products, or even equal to the outside product, resulting in Electrode consumption is fast, and the electrode leaks when it is pressed and released.

Equipment reasons The holding system is not insulated, resulting in the system components and electrode Jane even electric breakdown electrode Jane caused by leakage: conductive clamps and electrode Jane contact is not good (conductive clamping force is not enough clamping force or the contact surface is rough), resulting in the electrode Jane burn through the leakage of paste; electrode holding system clamping force is small, resulting in the electrode in the pressure in the process of the sliding down, resulting in the electrode flow of paste or soft break accident; electrode Jane manufacturing weld seam is not tight, docking weld seam there are Sandhole, electrode paste leakage from it.

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