2018-Sustainable Industrial Processing Summit
SIPS2018 Volume 1. Afonso Intl. Symp. / Iron and Steel Making
| Editors: | F. Kongoli, M.-C. Gomez-Marroquin, M. Contrucci, N. Lacerda, F. V. Cancado, M. de Souza, R. Valladares |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2018 |
| Pages: | 184 pages |
| ISBN: | 978-1-987820-82-9 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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The Addition of Steel Scrap in the Charge and its Impact on the Result Properties of Cast Iron
Peter Futas1; Alena Pribulova2; Jozef Petrik3; Marcela Pokusova4; Andrea Junakova5;1SLOVAK UNIVERSITY OF TECHNOLOGY, Bratislava, Slovakia; 2TECHNICAL UNIVERSITY IN KOSICE, FACULTY OF METALLURGY, Kosice, Slovakia (Slovak Republic); 3TECHNICAL UNIVERSITY OF KOSICE, Kosice, Slovakia (Slovak Republic); 4SLOVAK UNIVERSITY OF TECHNOLOGY IN BRATISLAVA, Bratislava, Slovenia; 5MAGNETI MARELLI SLOVAKIA, Kechnec, Slovakia (Slovak Republic);
Type of Paper: Regular
Id Paper: 129
Topic: 2
Abstract:
Foundries in Slovakia use imported pig iron, sorelmetal, and steel scrap for production of cast iron. There are more than 100% of price differences in these components. Composition of raw materials can greatly influence the costs of castings. The quality of a cast iron, usually expessed by values of mechanical properties (Rm, HB, E0), is closely related to its chemical composition (content of C, Si, Mn, P, S), eventually other monitored elements such as alloying elements (Cr, Ni, Cu, ...), and in some cases, pollutants (Pb, Sn, As, Sb, ...). The chemical composition is simply determined by the degree of saturation (Sc) or by the carbon equivalent (CE). Other factors that impact the quality of cast iron are the metallurgical conditions of production (melting and treatment) of cast iron, and the solidification speed in mould. Beside ordinary quality evaluation of cast iron, i. e. determination of Rm, HB, eventually chemical composition, or other required properties, in practice the quality criteria of grey iron are used. This is a comparison of the mechanical properties of produced grey iron with optimal values determined for the same degree of saturation (Sc). An important component of raw material is return material. Influence of raw material on cast iron properties with lamellar graphite (EN-GJL250) made from different percentages of charge material was examined in operating conditions of two Slovak foundries.
Keywords:
Ferro-Alloys; Iron; Scrap; Steel;References:
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