Effect of Alternating Traveling Magnetic Field on the Removal of Inclusions from Aluminum Melt

Abstract:

Alternating traveling magnetic field (TMF) was introduced to agglomerate the inclusions with a density smaller than surrounding melt. Primary silicon particles precipitating from the solidification process of hypereutectic Al-Si alloy was regarded as inclusions need removing. Results indicated that alternating TMF was more effective to promote the inclusions to agglomerate into clusters than downward TMF. The effect of alternating TMF to agglomerate the inclusions increases with the increase of current and frequency. There exists the best alternating time to get the best agglomeration effect. In this study, 10s is the best alternating time.

• Periodical: Advanced Materials Research (Volumes 1061-1062)
• Pages: 55-60
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1061-1062.55
• Online since: December 2014
• Authors: Hong Zhang Deng, Qiu Lin Li*, Ding Guo Yang, Wei Liu
• Keywords: Agglomeration, Alternating Traveling Magnetic Field, Clusters, Primary Silicon

References

[1] Fu Gaosheng, Kang Jixing, Chen Wenzhe, Qian Kuangwu. Interactive mechanism between inclusions and hydrogen in molten aluminum [J]. The Chinese Journal of Nonferrous Metals, 1999, 95(1): 51-56. (in Chinese).

[2] D. Shu, B.D. Sun, J. Wang, T.X. Li, Z.M. Xu, and Y.H. Zhou: Metall. Mater. Trans. B, 2000, vol. 31B, p.1527–33.

[3] K. Li, J. Wang, D. Shu, T.X. Li, B.D. Sun, and Y.H. Zhou: Mater. Lett., 2002, vol. 56, p.215–20.

[4] X.S. Zheng, Z. X. Li, Y.C. Wang: Sci. Technol. Adv. Mater, 2001, vol. 2, p.113–116.

[5] Z.M. Xu, T.X. Li, and Y.H. Zhou. Metall. Mater. Trans. A, 2007, vol. 38A, p.1104–10.

[6] Kolin. A: Science, 1953, vol. 117, p.134~37.

[7] D. Shu, B.D. Sun, K. Li, T.X. Li, Z.M. Xu, and Y.H. Zhou: Mater. Lett ., 2002, vol. 55, p.322–26.

[8] Park. J. P, Tananka. Y, Sassa. K and Asai. S: ISIJ International, 1994, pp.497-504.

[9] Y. Tanaka, K. Sassa, K. Iwai, and S. Asai: Tetsu-to-Hagane´, 1995, vol. 81, p.1120–25.

[10] Miki. Y, Kitaoka. H, Safuraya. T, Fujii. T, ISIJ International. 1992, vol. 32, p.142~49.

[11] Lu. D. H, Jiang.Y. H, Guan.G. S et al. Jounral of Materials Processing Technology [J]. 2007, 189(1-3) : 13.

[12] Y.J. He, Q.L. Li, W. Liu: Mater . Lett, 2011, vol. 65, p.1226–28.

[13] Y.J. He, Q.L. Li, W. Liu: Metall. Mater. Trans. B, 2012, vol. 43, p.1149–55.

[14] Minrui Gao, Qiulin Li, Dingguo Yang, Wei Liu. An investigation on the effect of alternating rotating magnetic field on the removal of inclusions from aluminum melt.

[15] Y.C. Han, Q.L. Li, W. Liu and Y.J. He : Metall. Mater. Trans. A, 2012, vol. 43, pp.1400-04.

[16] P.G. Saffman, J.S. Turner: J. Fluid Mech., 1956, vol. 1, p.16–30.

[17] Leenov. D, Kolin. A: J. Chem. Phys. 1954, vol. 22, p.683~88.

[18] Grants I, Gerbeth G. J Cryst Growth 2004; 269: 630-8.