Assessment of Quality when Delivering Molten Aluminium Alloys Instead of Ingots

Anton Bjurenstedt; Salem Seifeddine; Tomas Liljenfors

doi:10.4028/www.scientific.net/MSF.765.266

Paper Titles

Study of Mechanical Properties of an LM24 Composite Alloy Reinforced with Cu-CNT Nanofillers, Processed Using Ultrasonic Cavitation
p.245

Catalytic Effect of Nanoparticles on Primary and Secondary Phase Nucleation
p.250

Practical Considerations on the Application of Ultrasonic Treatment to Mg-Al Shape Castings
p.255

A Study of the Behaviour of Double Oxide Films in Al Alloy Melts
p.260

Assessment of Quality when Delivering Molten Aluminium Alloys Instead of Ingots
p.266

Effect of Ultrasonic Melt Treatment on Degassing and Structure of Aluminium Alloys
p.271

Determination of the Magnitude of Interfacial Air-Gap and Heat Transfer during Ingot Casting into Permanent Metal Moulds by Numerical and Experimental Techniques
p.276

A Finite-Volume Model for Numerical Solidification of Mg Alloys
p.281

Study of the Solidification of AS Alloys Combining In Situ Synchrotron Diffraction and Differential Scanning Calorimetry
p.286

HomeMaterials Science ForumMaterials Science Forum Vol. 765Assessment of Quality when Delivering Molten...

Assessment of Quality when Delivering Molten Aluminium Alloys Instead of Ingots

Abstract:

Recycled aluminium alloys manufactured at Stena Aluminium, in Älmhult, Sweden, are delivered in special designed transport containers, called thermoses. Thermoses are best described as an insulating layer protected by a steel cover with a heat loss of about 5 degrees/h. Three thermoses are transported by a truck, giving the possibility for a total capacity of about 24 tonnes delivered aluminium just-in-time to the foundry. By delivering a full load of liquid aluminium, about 2 tonnes of carbon dioxide emissions are saved, compared with delivering ingots. The aim of the paper is to assess the quality benefits, in terms of inclusions sedimentation and mechanical properties, assured by delivering aluminium melts instead of ingots. The results indicate that materials produced by just-in-time melt delivery have slightly improved quality compared to ingots. The trends are explained in terms of quality, density and bifilm indexes, based on microstructural observations as well as tensile test data analysis.