The Analytic For Graphite Electrode Broken(I)

　　1. the appearance of graphite electrode body broken:

　　a). with the preformation of short arc, but suffer the larger lateral impact force from large flat material.

　　b). the triphase graphite electrode is not vertical and also have the hanging furnace slag or touch the furnace cover etc.

　　c). the graphite electrode has the construction defect and the strength lower.

　　Meanwhile, the break off also is divide into the lateral broken and the vertical broken, while the reason is quite different.

　　2. The appearance of the graphite electrode body hole broken:

　　a). it is different barycenter of triphase graphite electrode body, or the long route for graphite electrodes or insensitive of lift.

　　b). the bottom of graphite electrode have the no-conducting or less-conducting material. If yes, the sound is lightly but the incline is heavy.

　　c). the connection is not tight between graphite electrode hole and nipple, or the mismatching because difference expansion coefficient.