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多品種・高級化対応をめざした小径電縫鋼管製造設備

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川崎製鉄技報

KAWASAKI STEEL GIHO Vol. 22(1990) No.4

多品種・高級化対応をめざした小径電縫鋼管製造設備

Small diameter ERW Tube Mill for High-Grade and Multi-Product Mix Manufacturing System

杉江 善典(Yoshinori Sugie) 唐鎌 勝則(Katsunori Karakama) 渡辺 修三(Syuzo Watanabe) 香川 正弘(Masahiro Kagawa) 笠原 博二(Hiroji Kasahara) 板谷 進 (Susumu Itadani) 要旨 : 多品種化,小ロット化,高級化への対応として,小径電縫鋼管製造設備の改造を実施した。 その一つは,(1)切断精度向上,(2)サイズ替え時間短縮,(3)厚肉側範囲拡大を目的 とした素材スリット設備の改造であり,油圧拡縮方式の採用等によって効果をあげている。 また一方,小径電縫鋼管2″ミルライン改造の主な内容は,(1)クイックチェンジシステ ムの開発,(2)高級化対応技術の導入,(3)薄肉専用スタンド設置等による製造可能範 囲拡大,(4)ミル速度能率向上・精整合理化による生産性向上であり,現在順調に稼働し ている。 Synopsis :

In order to respond to the tendencies towards multi-kinds, small-lot production, and high-grade materials, the equipment for small-diameter ERW (electric resistance welded) tube was reconstructed. The slitting machine, which adopted the hydraulic-expansion system, enabled to reduce size changing time and expand available coil thickness. In the mill line, facilities for reduction of size changing time were developed, the technology for high-grade pipe were introduced, the available size range was expanded by the original forming machine for thin materials, and productivity was upgraded.

(c)JFE Steel Corporation, 2003

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