Abstract
In order to study the refining process by the consumable electrode arc melting method, many kinds of metals such as carbon steels, low-alloy steels, bearing steels, stainless steels, heat-resistant alloys, magnetic alloys and titanium are melted by this method, and analyses of chemical components and oxide inclusions are carried out with the materials before and after the consumable electrode arc melting, that is, with the electrodes and the ingots.
The results obtained were as follows:
By the method every oxide content in various steels and alloys was decreased, which resulted in a decrease of the oxgyen content as much as by 50% of that of electrode. In the metals containing more or less Al, the Al2O3 was decreased mainly; and in the steels scarcely containing Al, the MnO and the SiO2 were mainly decreased. The decrease of nitrogen content, being not so markedly as of oxygen content, was as much as by about 30%. In the alloying elements, the content of Mn was decreased as much as by about 30%.
