Prediction of heat flow through sand mould and its verification on the structure and property of gray cast iron

Shah, Sugrib Kumer and Haque, Md. Mohafizul and Maleque, Md. Abdul (2010) Prediction of heat flow through sand mould and its verification on the structure and property of gray cast iron. International Journal of Mechanical and Materials Engineering (IJMME), 5 (2). pp. 208-213. ISSN 1823-0334

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Abstract

Heat flows through the mould in casting govern the cooling rate of the liquid which affects the structure and properties of the materials. By controlling the heat flow direction, it is possible to control the structures as well as properties of the materials. To predict the heat-flow through the sand mould, finite element (FE) model was developed using FEA software. In order to verify the FE model, the gray cast iron was melted at 1350 0C temperature and poured into the sand mould at 1300 0C. The predicted and experimentally verified results show that maximum heat-reserve at the junction of the mould and the minimum at the end of the mould which increases with time at the thick section (10 mm). As a consequence, the solidification rate is higher at the end of the mould wall whereas it is comparatively lower near the sprue of the mould. It also shows that the microstructure and hardness change due to different heat flow through the sand mould.

Item Type:	Article (Journal)
Additional Information:	6103/167
Uncontrolled Keywords:	Simulation; Sand mould; Casting; Microstructure.
Subjects:	T Technology > TJ Mechanical engineering and machinery
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	Prof Dr. Md Abdul Maleque
Date Deposited:	02 Jun 2011 11:33
Last Modified:	14 Jun 2017 11:01
URI:	http://irep.iium.edu.my/id/eprint/167

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