Hidetake Kusamichi

Melting procedures and properties of high purity metals and alloys (Report 2)

The non-consumable electrode arc melting furnace which has tungsten or graphite tip as an electrode was not suitable for purity and homogenity of molten ingot, and consumable electrde are melting furnace has been developed since 1953 because of its electrode being made of the same material as molten metal.There are many summarised, introductory articles on the mechanical properties, but no report on the experiment of consumable electrode arc melting furnace and the comparison with non-consumable electrode furnace.The outhor has studied the industrialization of titanium fabrication for many years and has acquired the experimental principles that justify the above-mentioned development through many experiments.The last part of this article deals with these principles. In 1955, the author discovered that refining be possible melting practice if melting conditions would be desireable, and the author applied this principle to melting methods of various steels and heat-resistant alloys and researched the cause of ruch phenomena.As a result, it is revealed that consumable electrode melting method is suitable not only for titanium and zirconium but for special steels as well as heat-resistant alloy.