Effect of exciting current of high frequency electromagnetic field on initial solidification of steel during electromagnetic continuous casting
Source: Ironmaking & Steelmaking, Volume 36, Number 8, November 2009 , pp. 615-622(8)
Publisher: Maney Publishing
Abstract:A three-dimensional finite element model of the electromagnetic field and temperature field of electromagnetic continuous casting (EMCC) process was developed. The aim was to investigate the effects of induction heat of high frequency electromagnetic field on the early solidification process of molten steel in mould under various conditions of exciting current parameters. The results show that the induction heat has significant effects on the early solidification process, which appear as increasing the billet surface temperature, thinning the initial solidified shell and lowering the starting point of the initial solidification. The increases in exciting current frequency and density make the effects of induction heat on solidification process increase remarkably. Especially, with the exciting current frequency increase, the early solidification process and shell growth become non-uniform in billet circumferential direction. Furthermore, if the exciting current density exceeds a certain value, there occurs a high temperature region in the top of molten steel column, and then the initial solidification rate is greatly decreased. As a conclusion, the effects of induction heat on initial solidification process must be considered when the exciting current frequency and density are adjusted during the electromagnetic continuous casting process.
Document Type: Research Article
Affiliations: 1: School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China; School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China 2: School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China 3: School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China
Publication date: 2009-11-01
- Authors wishing to cite fast track papers should give the journal name and the article DOI. This will enable reference linking via CrossRef and allow forward and backward citation tracking systems to associate the fast track citation with the final journal reference.
This journal features top 10 articles which are freely available. Please click here and click on the 'Top articles' link in the right-hand menu to view the list and start downloading.
Ironmaking & Steelmaking: Products, Processes and Applications is Journal of the Month for June 2013! Download 3 years' worth of free content, watch video interviews, read article updates and more: http://www.maneypublishing.com/jotm/irs.
- Editorial Board
- Information for Authors
- Subscribe to this Title
- Terms & Conditions
- Online submission site
- Top 10 Articles
- ingentaconnect is not responsible for the content or availability of external websites