Electrical Steel ›› 2023, Vol. 5 ›› Issue (5): 36-.

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Cause analysis about nodulation formation of carbon sleeve in non-oriented silicon steel continuous annealing furnace

JIN Li, ZHANG Jing, XU Jian   

  1. Silicon Steel Department of Wuhan Iron & Steel Co., Ltd., Wuhan 430083, China
  • Online:2023-10-28 Published:2023-10-25

Abstract: The main reasons for the nodulation formation of carbon sleeve in non-oriented silicon steel continuous annealing furnace were analyzed from the aspects of the quality of carbon sleeve, furnace pressure, atmosphere, dew point, adjusting materials, and the carbon sleeve's operating speed. And then the measures to reduce nodules were proposed.

Key words: non-oriented silicon steel, continuous annealing, carbon sleeve, nodulation