Aluminum analyzer PoDFA

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PoDFA, is a complete solution for inclusion measurement . It identifies the inclusions and gives their concentration in the melt for each type. The PoDFA technique consists of filtering, under controlled conditions, a predetermined quantity of liquid aluminum through a very fine porosity filter disc. Inclusions of the melt are concentrated at the filter surface by a factor of 10,000. Developed by Alcan and commercialized by ABB, PoDFA is a method of metal cleanliness evaluation that provides both qualitative information on the nature of inclusions and quantitative information on the inclusion concentration. This technology is ideal for process control and development as well as for product certification. It can help assess the effect of various operating practices on metal cleanliness. A liquid aluminum sample is taken from any locations in your process. This sample is poured into a PoDFA crucible and put on a small portable PoDFA sampling station. This station will create a vacuum to force the aluminum through the filter. When the metal is frozen, the filter, along with the residual metal, is cut, mounted and polished before being analyzed under a microscope by a trained PoDFA metallographer. The samples can be sent to our lab for metallographic analysis. ABB offers PoDFA technology transfer and analysis training permitting you to proceed with your own analysis. For example, PoDFA data allows the user to make a clear decision regarding the suitability of an individual production run for use in critical applications such as bright trim, can body stock, foil or lithographic sheet.