Correlation of thermal analysis to binder emissions
Differential scanning calorimetry (DSC), Hazardous air pollutants (HAPs), Mass spectroscopy (MS), Phenolic urethane, Volatile organic compounds (VOCs)
73rd World Foundry Congress "Creative Foundry", WFC 2018 - Proceedings
The objective of the research work was to investigate the feasibility of replicating thermal and mold atmosphere conditions in a differential scanning calorimeter (DSC) coupled with a mass spectrometer (MS) to develop standard procedures in measuring HAPs and VOCs. Initial research focused on the development of appropriate DSC parameters for an A356 aluminum casting. Using results from the actual casting, the DSC was programmed with a 5 segment profile adjusting the heating/cooling rate and gas atmosphere to represent the conditions for aluminium cast in a phenolic urethane no-bake mold. The emissions were recorded and compared to emissions collected in a hood stack test. Using a scaling factor to compare certain emission compounds between the DSC and hood stack test, satisfactory results were obtained showing an average scaling factor of around 5 for most HAPs and VOCs. Results demonstrated an emission testing protocol using the DSC was feasible.
Original Publication Date
UNI ScholarWorks, Rod Library, University of Northern Iowa
Giese, Scott R., "Correlation of thermal analysis to binder emissions" (2018). Faculty Publications. 776.