Characterization of Spray Lubricants for the Die Casting Process

Journal Article · Tue Jan 01 04:00:00 EST 2008 · Journal of Materials Processing Technology

DOI:https://doi.org/10.1016/j.jmatprotec.2007.05.021· OSTI ID:931929

Sabau, Adrian S ^[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. The cooling effects of the die lubricant were investigated using Thermogravimetric analysis (TGA), heat flux sensors (HFS), and infrared imaging. The evolution of the heat flux and pictures taken using a high speed infrared camera revealed that lubricant application was a transient process. The short time response of the HFS allows the monitoring and data acquisition of the surface temperature and heat flux without additional data processing. A similar set of experiments was performed with deionized water in order to assess the lubricant effect. The high heat flux obtained at 300 C was attributed to the wetting and absorbant properties of the lubricant. Pictures of the spray cone and lubricant flow on the die were also used to explain the heat flux evolution.

• 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: 931929
• Journal Information: Journal of Materials Processing Technology, Journal Name: Journal of Materials Processing Technology Journal Issue: 1-3 Vol. 195; ISSN 0924-0136; ISSN JMPTEF
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CAMERAS
CASTING
CONES
DATA ACQUISITION
DATA PROCESSING
HEAT FLUX
LUBRICANTS
MONITORING
THERMAL GRAVIMETRIC ANALYSIS
TRANSIENTS
WATER