冷軋連續退火爐加熱區爐氛控制技術

An Atmosphere control technology for heating zone atmosphere in a continuous annealing furnace

許仁豪(J. H. Hsu) ； 周崑楚(K. C. Zhou)

《鑛冶：中國鑛冶工程學會會刊》 60卷1期 (2016/03) Pp. 30-36

https://doi.org/10.30069/MM.201603_60(1).0003

摘要

在現代化的連續退火產線中，退火爐爐氛使用氫氣、氮氣為保護還原性氣體，以避免鋼帶在高溫環境下與空氣中的氧接觸，產生氧化現象致使鋼帶表面產生回火顏色。而由於氫氣佔整體生產成本比重高，因此如何兼顧鋼帶表面品質又可降低氫氣使用量成為連續退火線的難題之一。本研究重點分析退火爐內氫氣使用狀況，結合生產實踐檢查退火爐密閉性及調整氫氣含量，達到節省氫氣使用的目的。

關鍵字

連續退火 ； 氫氣

並列摘要

In the modern continuous annealing production line, the furnace atmosphere is filled with hydrogen and nitrogen to avoid strip surface oxidation that effected the steel properties and altered the strip tempering color. Since the hydrogen consumption accounts for a major proportion of overall production costs, how to reduce the amount of hydrogen consumption and yet maintain the strip surface quality, which is one of difficult problems of the continuous annealing line. In this study, we focused on analyzing hydrogen consumption in the furnace, examining annealing furnace tightness, and adjusting the hydrogen content to reduce the hydrogen consumption.

並列關鍵字

Continuous Annealing ； Hydrogen