UHP300 encountered oxidation issues at the electrode connection in an alloy steel plant: analysis and solution

As we all know, alloy steel requires a large amount of electrodes, and the consumption rate is also high. When UHP300 is used in LF electric furnace smelting, oxidation occurs at the electrode connection. Once oxidation happens at the electrode connection, it is prone to breakage. There are several factors contributing to this problem:

 

1. During the smelting process, the bottom of the electrode does not conduct electricity. The current passes through the electrode connection and causes oxidation.

 

2. Loose connections at the electrode junction can also lead to oxidation and rapid deterioration of electrodes due to current flow.

 

3. When UHP300 electrodes come into contact with non-conductive substances at the bottom of an arc furnace, current cannot pass through effectively. At this point, arcing may occur on weaker parts of the electrode such as its junctions, leading to oxidation.

 

Solution: Check for non-conductive substances at the bottom of arc furnaces and clean them promptly. When connecting electrodes, tighten them with maximum torque possible. If necessary, consider adding protective sleeves or collars at electrode connections to prevent oxidization caused by excessive current flow.