Effects of Low Frequency Electromagnetic Field on Cold-Shut Formation during Aluminium Alloy Hot-Top Casting
On the basis of conventional hot-top casting, low frequency electromagnetic field was applied in the process of hot-top casting to produce 7050 aluminum alloy ingot, the influences of low frequency electromagnetic field on cold-shut have been studied. The experimental results show that under the effect of the low frequency electromagnetic filed, the depth of cold folding has been decreased, and the as-cast structure has been refined. The reasons for low frequency electromagnetic field improving the surface quality, refining the structure of the ingot were summarized.
Qi Luo and Yuanzhi Wang
X. J. Wang et al., "Effects of Low Frequency Electromagnetic Field on Cold-Shut Formation during Aluminium Alloy Hot-Top Casting", Advanced Materials Research, Vols. 181-182, pp. 130-133, 2011