Source and formation mechanism of inclusions in FeSiB amorphous ribbon
LI Bai-song1,2, CHEN Wen-zhi2, YAO Shu-fang2, ZHAO Yu-lin2
1. Central Iron and Steel Research Institute, China Iron and Steel Research Institute Group, Beijing 100081, China; 2. Advanced Technology and Materials Co., Ltd., China Iron and Steel Research Institute Group, Beijing 100081, China
Abstract：In order to formulate a reasonable inclusion control process to improve the quality and magnetic properties of FeSiB amorphous ribbon, the source and the formation mechanism of inclusions were analyzed. The results show that the spherical and elliptical inclusions consisted of Al2O3 and SiO2 mainly come from the industrial pure iron. During the next smelting process, ellipsoidal inclusions of 20-30 μm in the pure iron were removed by floatation, while spherical inclusions of 1-3 μm combined with the deoxidized products and form aluminum silicate inclusions and aluminum calcium silicate inclusions in FeSiB master alloy. Some of these inclusions accumulated in the inner wall of the nozzle during the spraying process, while the other parts of inclusions flowed out of the nozzle and remained in the FeSiB amorphous ribbon.
李百松, 陈文智, 姚书芳, 赵玉林. FeSiB非晶薄带中夹杂物的来源及形成机理[J]. 钢铁, 2020, 55(1): 27-33.
LI Bai-song, CHEN Wen-zhi, YAO Shu-fang, ZHAO Yu-lin. Source and formation mechanism of inclusions in FeSiB amorphous ribbon. Iron and Steel, 2020, 55(1): 27-33.
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2020, Vol. 55 
