Evaluation of a heat flux sensor for spray cooling for the die casting processes

Adrian S. Sabau; Zhuoxi Wu

doi:10.1016/j.jmatprotec.2006.07.039

Evaluation of a heat flux sensor for spray cooling for the die casting processes

Adrian S. Sabau, Zhuoxi Wu

Multiscale Materials

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

During the die casting process, lubricants are sprayed in order to cool the dies and facilitate the ejection of the casting. In this paper, a new technique for measuring the heat flux during lubricant application is evaluated. Data from experiments conducted using water spray are first presented. Water spray experiments were conducted for different initial plate temperatures. Measurements were conducted for the application of two different lubricants, of dilution ratios of 1/15 and 1/50 of lubricant in water. The measurement uncertainties were documented. The results show that the surface temperature decreases initially very fast. Numerical simulation results confirmed that the abrupt temperature drop is not an artifact but illustrates the thermal shock experienced by the dies during the initial stages of lubricant application. The lubricant experiments show that the sensor can be successfully used for testing die lubricants with typical dilution ratios encountered in the die casting process.

Original language	English
Pages (from-to)	312-318
Number of pages	7
Journal	Journal of Materials Processing Technology
Volume	182
Issue number	1-3
DOIs	https://doi.org/10.1016/j.jmatprotec.2006.07.039
State	Published - Feb 2 2007

Funding

This work was performed under a Cooperative Research and Development Agreement (CRADA) with the United States Advanced Materials Partnership (USAMP), United States Council for Automotive Research (USCAR) for the project on Structural Cast Magnesium Development. This research was sponsored by the US Department of Energy, Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Transportation Technologies, Lightweight Vehicle Materials Program, under contract DE-AC05-00OR22725 with UT-Battelle, LLC. We would like to thank E. Hatfield of Oak Ridge National Laboratory for assistance with the experimental setup. The authors acknowledge that this research was supported in whole by Department of Energy Cooperative Agreement no. DE-FC05-02OR22910. Such support does not constitute an endorsement by the Department of Energy of the views expressed herein.

Funders	Funder number
Office of Transportation Technologies	DE-AC05-00OR22725
U.S. Department of Energy	DE-FC05-02OR22910
Office of Energy Efficiency and Renewable Energy

Keywords

Die casting
Die lubrication
Heat flux measurement
Heat flux sensor
Heat transfer
Spray cooling

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10.1016/j.jmatprotec.2006.07.039

Cite this

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abstract = "During the die casting process, lubricants are sprayed in order to cool the dies and facilitate the ejection of the casting. In this paper, a new technique for measuring the heat flux during lubricant application is evaluated. Data from experiments conducted using water spray are first presented. Water spray experiments were conducted for different initial plate temperatures. Measurements were conducted for the application of two different lubricants, of dilution ratios of 1/15 and 1/50 of lubricant in water. The measurement uncertainties were documented. The results show that the surface temperature decreases initially very fast. Numerical simulation results confirmed that the abrupt temperature drop is not an artifact but illustrates the thermal shock experienced by the dies during the initial stages of lubricant application. The lubricant experiments show that the sensor can be successfully used for testing die lubricants with typical dilution ratios encountered in the die casting process.",

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Evaluation of a heat flux sensor for spray cooling for the die casting processes

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