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Meeting 2020 TMS Annual Meeting & Exhibition
Symposium Cast Shop Technology: Recycling and Sustainability Joint Session
Presentation Title Automatic Skimming Procedure for Reducing Aluminium Losses and Maintaining the Uniform Quality of the Molten Metal
Author(s) Varuzan M. Kevorkijan, Uroš Kovačec, Sandi Žist
On-Site Speaker (Planned) Varuzan M. Kevorkijan
Abstract Scope Among the parameters involved in the production of aluminium alloys, a particularly demanding in terms of regulation are those involved in dross skimming. To reduce aluminium losses and maintain the uniform quality of skimming, the skimming depth (dross removal) should be limited, as much as possible, to near the interface between the dross layer and the molten metal. The purpose of this work was the development of an automatic skimming procedure. The position of the skimming spoon was guided by a continuous measurement of the temperature gradient across the dross layer, with thermocouples positioned on its bottom edge. The efficiency of this novel procedure was validated by continuous tracing of the specific amount of skimmed dross (SASD), recognized as a valuable quantitative indicator of the quality and the efficiency of the melting procedure as well as of the quality of the molten metal produced.
Proceedings Inclusion? Planned: Light Metals

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Rapid Method of Determining Salt Flux Melting Point and Composition
An Assessment of Recyclability of Used Aluminium Coffee Capsules
Automatic Skimming Procedure for Reducing Aluminium Losses and Maintaining the Uniform Quality of the Molten Metal
Constellium R&D Approach in Recycling from Lab to Industrial Scale
Evaluation of the Effect of CO2 Cover Gas on the Rate of Oxidation of an AlMgSi Alloy
Fractional Solidification for Purification of Recycled Aluminium Alloys
Recovery of Aluminium Metal Using Ultrasonic Technique and Production of Al-Si Hypereutectic Alloys from 6063 Alloy’s Black Dross Using Silicon Lumps and Flux
Recycling of Aluminium Waste from Mixed Household Waste
Representative Sampling, Fractionation and Melting of Al-scrap

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