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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
ESCI SJR: 0.176 SNIP: 0.48 CiteScore™: 1.3

ISSN Imprimer: 1093-3611
ISSN En ligne: 1940-4360

High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

DOI: 10.1615/HighTempMatProc.v10.i4.40
pages 525-536

Investigation on Magnetically driven Transferred Arc : Experiments and Numerical Analyses

Sunao Takeuchi
Environment & Process Development Center, Nippon Steel Corp., 20-1, Shintomi, Futtu, Chiba, 293-8511, Japan
Ken-ichi Yamamoto
Environment & Process Development Center, Nippon Steel Corp., 20-1, Shintomi, Futtu, Chiba, 293-8511, Japan
Takehiko Toh
Environment & Process Development Center, Nippon Steel Corp., 20-1, Shintomi, Futtu, Chiba, 293-8511, Japan
Kenji Umetsu
Technical Development Bureau, Nippon Steel Corporation, Japan
Hideki Hamatani
Technical Development Bureau, Nippon Steel Corporation, Japan
Jim Tanaka
Environment & Process Development Center, Nippon Steel Corp., 20-1, Shintomi, Futtu, Chiba, 293-8511, Japan
Koichi Takeda
Department of Machine Intelligence and System Engineering, Akita Prefectural University, 84-4 Ebinokuchi Tsuchiya, Yuri-Honjo, Akita, 015-0055, Japan

RÉSUMÉ

A novel process of the slight melting of metal surface by the broadened transferred arc is proposed, using magnetically oscillating transferred arc.
The laboratory scale arc heating experiments have been conducted. In order to simulate a hot steel slab just after the continuous casting process, a sample has been preheated by induction heating. The sample movement during arc heating is perpendicular to the arc oscillation. The wide surface area is treated and melted. The heating histories by the combination of induction preheating and arc heating are measured.
Experimental results are compared to the ones obtained by the total simulator, which analyze the heating history of sample, using the results from some elemental simulators, such as electromagnetic analysis of induction heating, 3D MHD transferred arc analysis, and so on. The agreement between experiments and numerical simulation is good.
As the surface of the melted samples is smooth and sample has good cleanliness evaluated by microscope observation in cross-section, the proposed process using broadened transferred arc is considered to be the possible alternative of surface scarfing.


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