| 摘要 |
PROBLEM TO BE SOLVED: To provide a Ti-based wire rod for forming molten metal in which the total content of oxygen can be sufficiently reduced though being provided with a Ti-based oxide film thicker than a naturally oxidizable film, and in its turn, the total oxygen content can easily be controlled within a standard range. SOLUTION: In the Ti-based wire rod for forming molten metal from which molten metal composed of Ti-based metal is formed by being successively heated and melted from the tip side, the wire rod body 3 is composed of Ti-based metal, and a Ti-based oxide film 2 thicker than a naturally oxidizable film is formed on the surface of the wire rod body. Regarding the total oxygen content WO<SB>T</SB>in the whole of the wire rod 3, standard upper limit value WOmax is decided. Further, in the total oxygen content WO<SB>T</SB>, the contribution to the oxygen content by the Ti-based oxide film 2 is defined as WO<SB>F</SB>, then, an upper limit regulation marginΔWO of oxygen in the body higher than the WO<SB>F</SB>is set, and the oxygen content WO<SB>M</SB>in the wire rod body 3 is regulated to WOmax-ΔWO or lower. COPYRIGHT: (C)2006,JPO&NCIPI
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