頁籤選單縮合
題名 | Effects of Deoxidation during RH Refining on the Cleanliness and Core Loss of Electrical Steels |
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作者 | Lin, Chi-cheng; Liu, Yung-chang; Sui, Yu-ping; Yuan, Cheng-hua; Kuo, Chia-hao; Feng, Jung-chung; | 書刊名 | China Steel Technical Report |
卷期 | 26 2013.12[民102.12] |
頁次 | 頁1-6 |
分類號 | 472.3 |
關鍵詞 | Core loss; Inclusion; RH refining process; |
語文 | 英文(English) |
英文摘要 | In order to decrease the core loss of 50CS1300, efforts were made to control the formation of inclusions in the RH refining process to improve the cleanliness of steels in this study. Pre-deoxidation by aluminum was usually carried out prior to the addition of ferrosilicon during RH treatment of 50CS1300, but the residual free oxygen (i.e., f[O]) was not monitored after that. Therefore, the effects of the extent of pre-deoxidation on the cleanliness and the core loss of steels were still unclear. By analyzing the steel cleanliness, it was observed that inclusions in high core loss steel coils are more and larger than those in low ones. Furthermore, inclusions broken into small pieces with a long chain during rolling were also found in these samples. The cleanliness of these steel coils was apparently worse. Besides, both of them were SiO2-Al2O3-MnO-TiO2 composite oxides, but the former had a higher SiO2 percentage. It could be considered that the high core loss was due to the poor cleanliness of the steels. Insufficient pre-deoxidation would lead to poor cleanliness and high core loss. Accordingly, after improving cleanliness by controlling f[O] prior to addition of ferrosilicon during RH treatment, the core loss was decreased successfully. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。