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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Cast Shop Technology: Recycling and Sustainability Joint Session
Presentation Title Potential for Handheld Analyzer to Address Emerging Positive Material Identification (PMI) Challenges
Author(s) Leslie Brooks, Gabrielle Gaustad
On-Site Speaker (Planned) Leslie Brooks
Abstract Scope Positive material identification (PMI) is a challenge in the metals secondary industry that remains persistent with growing complexity of product design. Strategies in the automotive industry to improve fuel efficiency include development of lightweight wrought aluminum and magnesium alloys to replace heavier steel components in vehicles. These alloys have tight compositional requirements and the traditional equipment for sorting and identifying this scrap (i.e. a magnet, file, and grinding wheel) is inadequate. Handheld analyzers that utilize x-ray fluorescence and spectroscopy technology may offer technological assistance that is helpful for PMI. This work tests the performance of these units under the challenging conditions present in yards (contaminated, unpolished, comingled scraps). As the costs of these units have decreased substantially over time, results have shown there are more opportunities for quicker return on investment under a variety of scenarios; yard volume, incoming grades, and diversity of suppliers have the largest impact on pay-off.
Proceedings Inclusion? Planned: Light Metals


Behavior of Mg-Si-rich Phases in Aluminum Can Sheets and Their Impact on Metal Oxidation during Industrial Thermal Pre-treatment
C-47: Promotion of Separation of Two Phase Liquid Metals by Applying Mechanical Vibration
Dissipative Use of Critical Metals in the Aluminum Industry
Environmental Impacts of Aluminum Dross after Metal Extraction
In-situ Observation of Dross Formation during Melting of Al-Mg Alloy
Potential for Handheld Analyzer to Address Emerging Positive Material Identification (PMI) Challenges
Recycling of Oxide from Dross into Aluminum Electrolysis Cells
The Implementation of a Comprehensive Dross Management Program at Constellium Ravenswood

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