被覆アーク溶接棒の生産性を満足しつつ良好な溶接作業性および溶接金属の優れた低温靭性が得られる被覆アーク溶接棒用希土類金属合金粉および低水素系被覆アーク溶接棒を提供する。例文帳に追加

To provide a rare earth metal alloy powder for a coated electrode for arc welding and a low-hydrogen type coated electrode in which superior welding workability and excellent low-temperature toughness of weld metal can be obtained while productivity of the coated electrode is satisfied. - 特許庁

大入熱で溶接を行った際にも、溶接作業性を損なうことなく、低温靱性と耐焼戻し脆化特性の両面に優れた低合金耐熱鋼用低水素系被覆アーク溶接棒を提供する。例文帳に追加

To provide a low hydrogen coated electrode for low-alloy heat-resistant steel excellent in low-temperature toughness and temper-embrittlement characteristic without impairing welding workability even during welding of high heat input. - 特許庁