Evaluation of a Heat Flux Sensor for Spray Cooling for the Die Casting Processes

Journal Article · Thu Feb 01 04:00:00 EST 2007 · Journal of Materials Processing Technology

DOI:https://doi.org/10.1016/j.jmatprotec.2006.07.039· OSTI ID:989695

Sabau, Adrian S ^[1]; Wu, Zhuoxi ^[1]

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1. ORNL

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.

• Research Organization: Oak Ridge National Laboratory (ORNL)
• Sponsoring Organization: EE USDOE - Office of Energy Efficiency and Renewable Energy (EE)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 989695
• Journal Information: Journal of Materials Processing Technology, Journal Name: Journal of Materials Processing Technology Journal Issue: 1-3 Vol. 182; ISSN 0924-0136
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CASTING
DILUTION
EVALUATION
HEAT FLUX
LUBRICANTS
PLATES
SIMULATION
SPRAY COOLING
TESTING
THERMAL SHOCK
WATER