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Optimizing Steel Recycling: Advanced High Strength Steel Sorting Process

This project outlines a method for recycling advanced high strength steel (AHSS) from scrap automobiles. Utilizing a combination of AHSS and low carbon aluminum-killed (LCAK) scrap, the research focuses on familiarizing the team with steel recycling processes, including sorting and material combination. Key techniques analyzed include magnetism, density, melting point, and eddy currents. The chosen method, optical emission spectrometry, leverages unique light frequencies emitted by heated atoms to accurately differentiate scrap types. The process culminates in sorting, alloy addition, and final processing for shipping.

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Optimizing Steel Recycling: Advanced High Strength Steel Sorting Process

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Presentation Transcript

  1. Steel Recycling Process Michael Barton, James Dryden, Jacob Schneider, Matt Villani EDSGN 100 Xinli Wu Sponsored by ArcelorMittal

  2. Design Task • Primary goal: (from project kick-off presentation) • Separate advanced high strength steel (AHSS) from scrap autos • Use mix of AHSS and low carbon aluminum-killed (LCAK) scrap to make LCAK heat

  3. Research • Research required to familiarize the team with steel recycling • How scrap is processed • How materials are combined to make steel • How different alloys affect steel characteristics • Characteristics of the steel to be sorted (AHSS and LCAK)

  4. Brainstorming • Analyzed several potential methods of sorting scrap • Magnetism, density, melting point, eddy currents • Research found that optical emissions spectrometry could be used to differentiate between the types of scrap • Chosen for being a proven, pre-existing technology

  5. How it works? • Optical Emission Spectrometer • Heats up atoms in material • Different elements give off unique frequencies of light • Different frequencies used to determine material

  6. Steps in Process • Scrap steel sorted in Optical Emission Spectrometer 1

  7. 2. Necessary elements added to basic oxygen furnace. 2

  8. 3. Steel is cooled and rolled for shipping. 3

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