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Which quality indicators of electrode nipple products have an impact on EAF?
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(1) Quality indicators such as bulk density, resistivity, strength, elastic modulus, and thermal expansion coefficient of electrodes and nipple.

(2) The machining accuracy of electrodes and nipples. No matter how good the quality of electrodes and nipples is, the use effect couldn’t be ideal without good machining accuracy (mainly refers to the cooperation of electrodes and nipples).

(3) The internal structural quality of electrodes and nipples requires that there are no cracks that might cause potential dangers in use.

(4) The nipples play a key role in connecting electrodes in steelmaking.The quality of the nipple directly affects the use of the electrode in 
electric furnace steelmaking. No matter how good quality the electrode is, if there is no high-quality nipple with it, there will be problems in steelmaking.

According to relevant statistics, in electric furnace steelmaking, more than 80% of electrode accidents are caused by nipple fracture and tripping.
Therefore, the selection of high-quality
electrode nipple is a guaranteed condition for the normal use of electric furnace steelmaking electrodes.

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