Oxide entrainment structures in horizontal running systems
Date published
2009
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Minerals, Metals & Materials Society
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Conference paper
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Reilly C, Green NR, Jolly MR, Oxide entrainment structures in horizontal running systems, Proceedings of the 3rd International Symposium on Shape Casting held at the 2009 TMS Annual Meeting, 15-19 February 2009, San Francisco, California, USA
Abstract
During the transient phase of filling a casting running system surface turbulence can cause the entrainment of oxide films into the bulk liquid. Research has shown that these are detrimental to the material’s integrity. Common mechanisms for this entrainment include returning waves, arising during filling of the runner bar, and plunging jets, found when pouring into a basin. One of these, the returning wave, has been studied in greater depth, using real-time X-ray and process modelling techniques alongside the application of physical principals. It has been concluded that when developed, returning waves cannot attain the more stable and less entraining tranquil flow regime desirable in the running system of castings.
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Casting, Oxide, Quality Assessment, Entrainment, Running System
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©2009 Minerals, Metals & Materials Society. This is the Author Accepted Manuscript.
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