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川崎製鉄技報
KAWASAKI STEEL GIHO
Vol.8 (1976) No.2
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ほうろう鋼板用スラブの連続鋳造について
Study on Operational Conditions of a Continuous Slab Caster for the Production of Enamelling Sheet, KTM

鈴木 健一郎(Ken-ichiro Suzuki) 江島 彬夫(Akio Ejima) 垣生 泰弘(Yasuhiro Habu) 江見 俊彦(Toshihiko Emi) 今井 卓雄(Takuo Imai)
要旨 :
ほうろう用鋼板KTMを連鋳工程で製造するに際し遭遇した,(1)スラブ1/2厚付近の内部割れ,断面割れ,(2)[B]歩溜まりの不安定,(3)スラブ表面欠陥の多発,などの問題点につき調査し,その結果にもとづき解決方法を検討のうえ,その妥当性を工程試験により確認した。
Synopsis :
Operational conditions of a curved-mold type continuous slab caster have been studied in order to produce defect-free slabs for enamelling steel sheets, KTM, newly developed by Kawasaki Steel Corp., with minor additions of C and B. Cracks along the half thickness line of slab sections have diminished by precise controls of B, Mn and S contents, an amount of specific cooling water, and casting speed. B content of liquid steel could be adjusted by a little addition of Al in an RH degasser and by preventing liquid steel from air oxidation. Surface defects have been reduced by new CC fluxes without F-ion.
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