製鋼原鐵に就て
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概要
- 論文の詳細を見る
"Seiko-gentetu" is a new nomination by Nippon-Tekkokyokai (Iron and Steel Institute of Japan) for the raw iron as substitute for scrap iron. They have subdivided it into 4 qualities : "sentetu" (pig iron) ; "juntetu" (pure iron) and "soko" (raw steel) ; "kaimentetu" (sponge iron) ; "ryutetu" (Luppe) and "botetu" (bar iron). Beside the products from blast furnaces, there are other pigs from rotary kilns and from electric furnaces. Pure iron is produced mainly by electrolysis. It is interesting that the raw steel is a high-purity steel made directly from the local iron ores and sand iron with the electric furnace by utilizing the low-cost electricity. Sponge iron is made with rotary kilns, "tunnel" furnaces and gas-fired furnaces, while Luppe (loop) is made exclusively with the rotary furnace. Bar iron today is made mainly by a high-frequency electric rabbling method. There are so many kinds of the raw iron for steel manufacture, but the problem of a scrap iron substitute has not been settled. In point of the amount of production, methods of production and utilization, civilians and officers should unite in solving the problem through all difficulties. Luppe and sponge iron are suitable for the mass production, and so may be regarded as the fundamental raw irons in steel manufacture. As for the special raw irons containing nickel, chromium, vanadium, cobalt, etc, . cooperation in research is still necessary.
- 社団法人日本鉄鋼協会の論文
- 1941-10-25