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Computational Thermal Sciences: An International Journal

年間 6 号発行

ISSN 印刷: 1940-2503

ISSN オンライン: 1940-2554

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.5 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.3 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00017 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.28 SJR: 0.279 SNIP: 0.544 CiteScore™:: 2.5 H-Index: 22

Indexed in

OPTIMIZATION OF SECONDARY COOLING PERCENTAGE DURING SEMI-CONTINUOUS COPPER CASTING PROCESS

巻 9, 発行 3, 2017, pp. 213-225
DOI: 10.1615/ComputThermalScien.2017017197
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要約

Sufficient cooling is essential to reduce casting defects and to get high productivity in semi-continuous casting of copper billet. On the other hand, low rate solidification is desired in order to develop coarser grain size and softer metal for less energy losses and metal discards in extrusion. Cooling intensity and percentage in both primary and secondary cooling stages was inspected to optimize microstructure and quality of billets. A three-dimensional steady-state numerical model was developed including solidification behavior of copper through mushy zone. Solid shell thickness, pool length, and mushy zone thickness are monitored during the reduction of the cooling rate in the mold region. Adequate primary cooling range is concluded, as a function of mold inlet water temperature, to be between 43 and 63°C. For moderate pool length according to solidification time, not reduced total heat removal, a cooling rate with less available inequality along the billet, and at the range of adequate primary cooling, perfect secondary cooling percentage sets at the range of 52−67%. At this range and for a specified speed of casting, melt at the core needs between 600 and 750 s to start solidification and solidification needs between 125 and 225 s to complete.

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