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Alleviation of high-temperature oxidation and cracking of water-cooled roll for hot-rolling steel.

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Title: Alleviation of high-temperature oxidation and cracking of water-cooled roll for hot-rolling steel.
Authors: Lee, Yong-Joon1,2 (AUTHOR), Yi, Kyung-Woo1,3 (AUTHOR) yikw@snu.ac.kr
Source: Journal of Mechanical Science & Technology. Dec2019, Vol. 33 Issue 12, p5787-5796. 10p.
Subjects: Rolling (Metalwork), Hot rolling, Surface defects, Atmospheric temperature, Oxidation, Thermal stresses
Abstract: Hot rolling is performed inside a heating furnace where the material is heated above its recrystallization temperature. As pinch rolls are located in this furnace and subjected to continuous high temperature, they are typically cooled with water to protect them from the harmful effects of the high atmospheric temperature. Despite cooling, cracks can develop on the surface of water-cooled rolls, which can result in fracture over time; further, high-temperature oxidation can cause the metal strip to stick to the roll, resulting in defects on the strip surface. To address these problems, we analyzed pinch rolls through mechanical stress, thermal stress, and high-temperature oxidation investigations with data measured from a production line in situ. Subsequently, solutions for improving the performance of the pinch rolls predicted from the calculations were applied to an actual hot rolling process. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Mechanical Science & Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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  Data: <searchLink fieldCode="AR" term="%22Lee%2C+Yong-Joon%22">Lee, Yong-Joon</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yi%2C+Kyung-Woo%22">Yi, Kyung-Woo</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<i> yikw@snu.ac.kr</i>
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  Data: <searchLink fieldCode="DE" term="%22Rolling+%28Metalwork%29%22">Rolling (Metalwork)</searchLink><br /><searchLink fieldCode="DE" term="%22Hot+rolling%22">Hot rolling</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+defects%22">Surface defects</searchLink><br /><searchLink fieldCode="DE" term="%22Atmospheric+temperature%22">Atmospheric temperature</searchLink><br /><searchLink fieldCode="DE" term="%22Oxidation%22">Oxidation</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+stresses%22">Thermal stresses</searchLink>
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  Data: Hot rolling is performed inside a heating furnace where the material is heated above its recrystallization temperature. As pinch rolls are located in this furnace and subjected to continuous high temperature, they are typically cooled with water to protect them from the harmful effects of the high atmospheric temperature. Despite cooling, cracks can develop on the surface of water-cooled rolls, which can result in fracture over time; further, high-temperature oxidation can cause the metal strip to stick to the roll, resulting in defects on the strip surface. To address these problems, we analyzed pinch rolls through mechanical stress, thermal stress, and high-temperature oxidation investigations with data measured from a production line in situ. Subsequently, solutions for improving the performance of the pinch rolls predicted from the calculations were applied to an actual hot rolling process. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Journal of Mechanical Science & Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s12206-019-1125-0
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      – Code: eng
        Text: English
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        Type: general
      – SubjectFull: Hot rolling
        Type: general
      – SubjectFull: Surface defects
        Type: general
      – SubjectFull: Atmospheric temperature
        Type: general
      – SubjectFull: Oxidation
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      – SubjectFull: Thermal stresses
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              Text: Dec2019
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