Influnce of Rolling Conditions and Chemical Compositions of Rolled Material on Strip Surface Flaw Caused by Surface Deterioration of Hot Work Rolls.
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- Oike Yoshio
- Steel Plate and Sheet Development Department, Kakogawa Works, Kobe Steel, Ltd.
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- Sato Junji
- Steel Plate and Sheet Development Department, Kakogawa Works, Kobe Steel, Ltd.
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- Minami Kazuhiko
- Steel Plate and Sheet Development Department, Kakogawa Works, Kobe Steel, Ltd.
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- Yoshitake Kunihiko
- No. 2 Rolling Department, Kakogawa Works, Kobe Steel, Ltd.
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- Yamanaka Shigeo
- No. 2 Rolling Department, Kakogawa Works, Kobe Steel, Ltd.
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説明
The relationship between the strip surface flaw occurrence and rolling conditions in upstream stands together with the chemical compositions of rolled material are examined in the skinpass mill line. The ratio of the mean rolling pressure and the work roll surface in roll bite has a good correlation with the occurrence of the strip surface flaw. The strip surface flaw occurs frequently when the ratio exceeds the threshold value fixed by the chemical compositions of rolled strips. A slight addition of Si to Al-killed steel reduces remarkably the occurrence of the strip surface flaw. In order to clarify this phenomena, the influence of Si content on the behavior of scale formed on strip surface is investigated through laboratory tests. Moreover, the influence of the friction coefficient on the velocity difference between roll surface and strip surface is calculated by rigid-plastic FEM, as the friction coefficient changes with Si content.
収録刊行物
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- ISIJ International
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ISIJ International 32 (11), 1211-1215, 1992
一般社団法人 日本鉄鋼協会
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詳細情報 詳細情報について
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- CRID
- 1390282681428802944
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- NII論文ID
- 130000763015
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- ISSN
- 13475460
- 09151559
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可