ダウンロード数: 16
このアイテムのファイル:
ファイル | 記述 | サイズ | フォーマット | |
---|---|---|---|---|
tetsutohagane.TETSU-2023-040.pdf | 5.16 MB | Adobe PDF | 見る/開く |
タイトル: | 量子ドットを活用した冷間圧延時のロールバイト油膜厚さ分布の測定 |
その他のタイトル: | Measurement of Oil Film Thickness Distribution in Roll Bite during Cold Rolling Using Quantum Dots |
著者: | 志村, 眞弘 ![]() 河西, 大輔 ![]() 大塚, 貴之 ![]() 山下, 直輝 ![]() 平山, 朋子 ![]() ![]() ![]() |
著者名の別形: | Shimura, Masahiro Kasai, Daisuke Otsuka, Takayuki Yamashita, Naoki Hirayama, Tomoko |
キーワード: | cold rolling micro-plasto-hydrodynamic-lubrication oil-pit friction high strength steel fluorescence microscopy |
発行日: | 1-Nov-2023 |
出版者: | 日本鉄鋼協会 |
誌名: | 鉄と鋼 |
巻: | 109 |
号: | 11 |
開始ページ: | 865 |
終了ページ: | 879 |
抄録: | During the cold rolling of flat steel products, lubrication is critical to achieve stable rolling. However, the oil film thickness distribution in the roll bite and its effect on friction between the work roll and strip have not been clarified thus far. This study aimed to elucidate the relationship between the oil film thickness distribution and friction by focusing on the rolling oil viscosity and steel grades, because they significantly affect the friction between the work roll and strip. Rolling oil was prepared with quantum dots as the fluorescent additive and used in rolling experiments to identify its distribution. Furthermore, cold rolling experiments were conducted using two types of oil with different viscosities and three different steel grades, namely low-carbon steel (LCS), high-strength steel (HSS), and advanced high-strength steel (AHSS) with tensile strengths of 270, 590, and 1180 MPa. Subsequently, the oil film thickness distribution on the steel strip surface was visualized using quantum dots by fluorescence microscopy. It was demonstrated that the higher the tensile strength of the steel or the higher the oil viscosity, the wider the rolling oil distribution on the strip surface. Numerical analyses revealed that the rolling oil distribution on the steel sheet surface was more widespread for AHSS and HSS than for LCS. The high surface pressure between the roll and steel plate may have increased the oil leaching area by increasing the oil viscosity. These findings demonstrate that rolling oil permeation from the oil-pits reduces the friction between the work rolls and strip. |
著作権等: | © 2023 一般社団法人 日本鉄鋼協会 This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs license. |
URI: | http://hdl.handle.net/2433/287392 |
DOI(出版社版): | 10.2355/tetsutohagane.TETSU-2023-040 |
出現コレクション: | 学術雑誌掲載論文等 |
![](/dspace/image/articlelinker.gif)
このアイテムは次のライセンスが設定されています: クリエイティブ・コモンズ・ライセンス