| Issue |
MATEC Web Conf.
Volume 269, 2019
IIW 2018 - International Conference on Advanced Welding and Smart Fabrication Technologies
|
|
|---|---|---|
| Article Number | 07002 | |
| Number of page(s) | 5 | |
| Section | Materials Engineering | |
| DOI | https://doi.org/10.1051/matecconf/201926907002 | |
| Published online | 22 February 2019 | |
Removal of Oxide Inclusions in Aluminium Scrap Casting Process with Sodium based Fluxes
1
Department of Metallurgical and Materials Engineering, Faculty of Engineering, Universitas Indonesia, Kampus UI, Depok, Indonesia 16424
2
Center for Materials Processing and Failure Analysis, Universitas Indonesia, Depok, Indonesia 16424
Corresponding author: widyantoro82@gmail.com
The investigation of Oxide Inclusions removal in aluminium scrap casting process with sodium based fluxes has been carried out. The purpose of this research is to investigate the effect of Na2SO4 and NaCl based fluxes addition onto the fluidity and microstructure of aluminium product. The alloy which is used in this investigation is Al-Si which mixed with metal scrap using gravity casting method. The variation of melting temperature in this investigation are 700°C, 740°C, and 780°C. In this research, material characterization was determined using DSC, EDAX, XRD, and fluidity test. The results show that the number of oxide inclusions decrease as the addition of 0,2% wt. flux, and completly removed after the addition of 0,4% wt. flux. The highest fluidity and tensile strength was obtained after the addition of 0,4% wt. flux. at 740°C.
© The Authors, published by EDP Sciences, 2019
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