Journal article
Thermophysical Properties and Performance of Riser Sleeves for Steel Castings
International journal of metalcasting, Vol.10(4), pp.535-555
04/08/2016
DOI: 10.1007/s40962-016-0041-7
Abstract
Riser sleeves are a popular feeding aid used in the metal casting industry. Reliable simulation of the performance of riser sleeves requires accurate temperature-dependent thermophysical properties. Unfortunately, there are little or no property data available in the open literature. A procedure for developing thermophysical properties of riser sleeves for steel castings is presented here along with its results. Analyses are performed using these sleeve properties to investigate optimal sleeve use. The modulus extension factor (MEF), which quantifies sleeve performance, is calculated for sleeve materials. Regardless of casting size studied here, the MEF determines casting yield improvement when using riser sleeves, and exothermic reactions do not necessarily increase yield unless they increase the MEF. Analyzing the effect of sleeve thickness on casting yield, it is found that the thicknesses of most commercially available riser sleeves are too small to maximize casting yield, particularly for risers of 8 in. diameter and larger.
Details
- Title: Subtitle
- Thermophysical Properties and Performance of Riser Sleeves for Steel Castings
- Creators
- Thomas J Williams - University of IowaRichard A Hardin - University of IowaChristoph Beckermann - University of Iowa
- Resource Type
- Journal article
- Publication Details
- International journal of metalcasting, Vol.10(4), pp.535-555
- Publisher
- Springer International Publishing
- DOI
- 10.1007/s40962-016-0041-7
- ISSN
- 1939-5981
- eISSN
- 2163-3193
- Grant note
- 12-01 / Iowa Energy Center (http://dx.doi.org/10.13039/100009228)
- Language
- English
- Date published
- 04/08/2016
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984196645202771
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