Evolution Behavior of the Surface Oxide Film of Al Alloy Scraps in the Melt

The oxide film on the scrap surface is one of primary sources inclusions in aluminum melt. Understanding evolution films melt an important step for developing efficient recycling technologies and controlling quality product. In present study, we studied behavior were introduced via alloy scraps into melt, micro-morphology composition analyzed by scanning electron microscope energy spectrum. Results show that 1235 foil, A356 turning, 5083 scalping broken small flake then transformed minor granular when charged commercial purity However, containing magnesium, remained intact sheet shape up to a certain dwelling time.