Six The sponge electrode is then placed inside a vacuum arc furnace for melting. In this particular water-cooled, copper container, an electric arc is used to melt the sponge electrode to kind an ingot. We use cookies to boost your on the internet expertise. By continuing searching this Web-site, we https://busbarbendingmachine25825.daneblogger.com/34794470/an-unbiased-view-of-mg3n2