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Graphite electrode breakage causes

66b8cb800bea55622d87cc4c2bae7b9 - Graphite electrode breakage causes

Graphite electrode breakage causes

1) The stress that Graphite electrode bear decrease from up to down, and the Graphite electrode and nipple under the holder bear the largest stress.

2) When Graphite electrode subject to external force : Stress concerned external force > Graphite electrode strength → leads to Graphite electrode breakage.

3) Causes of external force : Big pieces of furnace burden collapse in smelting period, non-conducting objects at the lower end of Graphite electrode in steel scrap, blocky runner impact etc.

4) Reasons such as the response speed is not harmonious when lifting Graphite electrode holder. The electrode hole in furnace cover core shift, poor connection made clearance in joining and using substandard strength of nipples can easily cause breakage.

5) Bad machining accuracy of Graphite electrode and nipple causes mismatching that easily leads to nipple breakage.

Graphite electrode , Graphite electrode breakage

 

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