Volume 14, Issue 6 (9-2014)
Modares Mechanical Engineering 2014, 14(6): 185-193 |
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Ahmadi E, Forouzan M, Aghaei M, Shirani M. Numerical simulation of thermal history in mold and casting during horizontal centrifugal casting of dutcile iron pipes. Modares Mechanical Engineering 2014; 14 (6) :185-193
URL: http://mme.modares.ac.ir/article-15-6264-en.html
URL: http://mme.modares.ac.ir/article-15-6264-en.html
1- Isfahan university of technology-Department of mechanical engineering
2- Isfahan university of technology-Department of mechnical engineering
3- Isfahan university of technology-Department of mechical engineering
2- Isfahan university of technology-Department of mechnical engineering
3- Isfahan university of technology-Department of mechical engineering
Abstract: (5982 Views)
Ductile iron pipes are widely used in modern drinking water and wastewater networks. They often produce by horizontal centrifugal casting process. In this reasearch, the finite element base package ANSYS software has been used for thermal simulation of horizontal centrifugal casting process of ductile iron pipes.The simulation includes obtaining temperature distribution of mold and cast during different temperature cycles. In the simulation, latent heat due to solidification, temperature-dependent thermo-physical properties of material, heat transfer coefficient in metal-mold interface due to mold coating and air gap and thermal boundary conditions proportional to practical conditions, are considered. In this paper, pouring process to get transient thermal distribution in main body of mold and cast are also simulated. The results of the thermal simulation show good agreement with the experimental results conducted in this study and literature. The results can be used as input data for the numerical model to estimate thermal fatigue life of a permanent mold. The results of simulation have shown that, the thermal resistance of the air gap and mold coating has a significant effect on the temperature distribution in the pipe and the mold. Pouring process causes temperature gradients in the axial direction in the mold and the cast.
Keywords: Horizontal centrifugal pipe casting, Heat Transfer, Transient thermal simulation, FE Analysis
Article Type: Research Article |
Subject:
Heat & Mass Transfer|Casting|Finite Elements Method
Received: 2014/02/7 | Accepted: 2014/03/8 | Published: 2014/07/13
Received: 2014/02/7 | Accepted: 2014/03/8 | Published: 2014/07/13
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