采用电解提取夹杂物和扫描电镜-能谱法,分析了无取向电工钢非稳态(开、终浇板坯)和稳态浇铸(中间板坯)对应成品试样的夹杂物数量、种类、尺寸,及其对成品钢卷铁损的影响.结果表明,两者夹杂物均以A1N、MnS、Cu12S类夹杂为主,开、终浇板坯中还含有少量的氧化物夹杂.0.5 μm以下的微细夹杂,数量约为1500万个/mm3；0.5～5.0 μm尺寸范围内的夹杂,非稳态和稳态浇注的板坯中分别为123万个/mm3和75万个/mm3,这也是造成非稳态和与稳态浇注条件下对应成品铁损差异的主要原因.
参考文献
| [1] | 张峰,李光强,陈晓,庞春敏.炼钢工艺和成分体系对B50A1300硅钢铁损的影响[J].武汉科技大学学报,2010(03):225-228. |
| [2] | YashikiH;KanekoT.Effects of Mn and S on the grain growth and texture in cold rolled 0.5％ Sisteel[J].ISIJ International,1990(04):325-330. |
| [3] | 蔡开科.转炉冶炼低碳钢终点氧含量控制[J].钢铁,2009(05):27-31. |
| [4] | Taisei Nakayama;Noriyuki Honjou;Takashi Minaga;Hiroyoshi Yashiki .Effects of manganese and sulfur contents and slab reheating temperatures on the magnetic properties of non-oriented semi-processed electrical steel sheet[J].Journal of Magnetism and Magnetic Materials,2001(1):55-61. |
| [5] | Kubota T .Development of non-oriented electrical steel used for high efficiency cores[J].Current Advancements in Molecular Medicines,2003,16(04):626. |
| [6] | Irie T;Matsumura K;Nakamura H et al.Development of a new non-oriented silicon steel with higher permeablity and lower core loss[J].Kawashiki Steel Giho,1978,10(01):15-22. |
| [7] | Zhang Feng;Li Guangqiang;Wang Bo.Effects of calcium treatment on magnetic properties of high efficient non-oriented silicon steel sheets[A].:651-660. |
| [8] | Yoshihiko Oda;Yasushi Tanaka;Nobuo Yamagami;Atsushi Chino;Katsumi Yamada .Ultra-low Sulfur Non-oriented Electrical Steel Sheets for Highly Efficient Motors: NKB-CORE[J].NKK Technical Review,2002(87):12-18. |
| [9] | Chun-Kan HOU;Chun-Chih LIAO .Effect of Cerium Content on the Magnetic Properties of Non-oriented Electrical Steels[J].ISIJ International,2008(4):531-539. |
| [10] | Istvám B6ca;Agnes Cziráiib;Tamás Gr6fc et al.Analysis of inclusions in cold rolled N.O.Si-Fe strips[J].Journal of Magnetism and Magnetic Materials,1990,83(1-3):381-383. |
| [11] | Matsumura K;Fukuda B;Kinoshita K et al.Non-oriented silicon steel sheet "RM7" newly developed with extremely low core loss[J].Kawashiki Steel Giho,1983,15(03):208-212. |
| [12] | 吴爽,樊立峰,毛一标,杨路远.高牌号无取向电工钢中硫化物、氮化物析出的热力学分析[J].冶金丛刊,2009(02):13-15. |
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