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溶接研究 10 年の歩み

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川崎製鉄技報 KAWASAKI STEEL GIHO

Vol.31 (1999) No.1

溶接研究 10 年の歩み

Recent Activities in Research of Welding 安田 功一(Koichi Yasuda) 要旨 : 溶接における最近 10 年間の技術動向と研究活動の概要を,社会環境や市場ニーズの変化 を含めて紹介した。溶接材料の分野では高能率,高品質を目的に,低スパッタ CO2 アー ク溶接用ソリッドワイヤや極厚鋼板の高能率大入熱 1 パスサブマージアーク溶接方法,耐 ピット性に優れたプライマー鋼板用フラックスコアードワイヤなどを開発した。鉄鋼材料 の溶接性に関する技術分野では,薄鋼板の表面処理化,厚鋼板の高強度化に対応した溶接 技術を開発した。 Synopsis :

The trends of the welding technologies and research developments in recent 10 years are outlined by including changes in social conditions and requirements of the market. Welding materials and a process were developed for high efficiency and high quality welding, e.g., a low spattering solid wire for CO2 arc welding, a high efficiency one pass submerged arc welding process using super-high heat input for heavy section steel plates, and a flux cored wire with excellent pitting resistance for primer coated steel plates. In viewpoint of the weldability of steel materials, new welding technologies were established for surface coated steel sheets and high tensile strength steel plates.

(c)JFE Steel Corporation, 2003

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