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川崎製鉄技報 KAWASAKI STEEL GIHO

Vol.6 (1974) No.2

川鉄の極厚鋼板について

Introducing Kawasaki Steel's Extra-Heavy Plates 松本 弘之(Hiroyuki Matsumoto) 要旨 : 1971 年4月,川崎製鉄(株)水島製鉄所で,極厚鋼板製造設備が稼働を開始した。当設備 は,原子炉圧力容器や脱硫装置の圧力容器などの特殊な用途に用いられる高品質の極厚鋼 板を製造するのが主目的である。大きな特長は,一貫した製造管理,品質管理ができるこ と。母溶鋼の精錬に転炉-取鍋精錬炉方式を採用しているため,内部健全性のすぐれた高信 頼性の鋼板が得られること,などである。本報告は,極厚鋼板の開発経緯,品質及び製造 工程上の特長,規格,用途について概要を述べている。 Synopsis :

In April 1971, the extra-heavy plate production system started its operation at Mizushima Works, Kawasaki Steel Corporation. With its main purpose for the manufacture of high-grade extra-heavy plate for nuclear reactor vessels and pressure vessels for desulphurizing equipment, the system features an integrated control system for production and product control, together with the use of LD-LRF (ladle refining furnace) system for mother metal refining. These contribute greatly to the manufacture of highly reliable steel plates of superior soundness. This report relates some background of the development of the extra-heavy plate, its quality and characteristics for manufacturing process, specifications and applications.

(c)JFE Steel Corporation, 2003

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