6 The sponge electrode is then positioned inside a vacuum arc furnace for melting. During this water-cooled, copper container, an electric arc is used to soften the sponge electrode to sort an ingot. Elements A and B usually do not change the orientation of the bilayer (aside from probable rotation https://glass-lined-cast-iron-pip03681.ziblogs.com/35965997/not-known-factual-statements-about-sorbitan-sesquioleate