Mechanism of and Key Technologies for Copper Bonding in the Hot Rolling of SCR Continuous Casting and Rolling

In the process of copper alloy hot continuous rolling, the problem of copper sticking to the roller seriously affects the surface quality, performance, and service life of the copper products. Roll sticking occurs as the adhesion energy of Cu is lower than that of Fe and the Fe-Cu interface, and the...

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Autores principales:	Yang Liu, Yan Peng, Xiaobo Qu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	copper rod sticking behavior hot continuous rolling rolling process parameters Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/8a7a802a154443fc8fa1b22081d60b97
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id	oai:doaj.org-article:8a7a802a154443fc8fa1b22081d60b97
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spelling	oai:doaj.org-article:8a7a802a154443fc8fa1b22081d60b972021-11-25T16:43:02ZMechanism of and Key Technologies for Copper Bonding in the Hot Rolling of SCR Continuous Casting and Rolling10.3390/app1122110232076-3417https://doaj.org/article/8a7a802a154443fc8fa1b22081d60b972021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/22/11023https://doaj.org/toc/2076-3417In the process of copper alloy hot continuous rolling, the problem of copper sticking to the roller seriously affects the surface quality, performance, and service life of the copper products. Roll sticking occurs as the adhesion energy of Cu is lower than that of Fe and the Fe-Cu interface, and the severe surface deformation which forces the copper into direct contact with the roll during the process of profile rolling. Based on the copper deformation law and adhesion phenomenon in the hot continuous rolling process, a rolling deformation model and roll copper adhesion model or copper alloy hot continuous rolling were established, and their simulation was realized using finite element software. Through finite element modeling of the hot rolling deformation zone, the distribution of the temperature, contact normal stress, and exposure rate in the hot rolling deformation zone were obtained, which were consistent with the actual roll adhesion phenomenon and copper adhesion position. To address the copper sticking behavior of the rolls, the process optimization method of matching the motor speed with the elongation coefficient (the 1# and 2# motor speeds were adjusted to 1549 r/min and 1586 r/min, respectively), adjusting the roll gap to 7.9 mm, and increasing the number and pressure of roll spray nozzles were put forward, which effectively solved the problem of copper sticking to the roll, significantly improved the surface quality of the copper and the service life of the roll, and can be used in production.Yang LiuYan PengXiaobo QuMDPI AGarticlecopper rodsticking behaviorhot continuous rollingrolling process parametersTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 11023, p 11023 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	copper rod sticking behavior hot continuous rolling rolling process parameters Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	copper rod sticking behavior hot continuous rolling rolling process parameters Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Yang Liu Yan Peng Xiaobo Qu Mechanism of and Key Technologies for Copper Bonding in the Hot Rolling of SCR Continuous Casting and Rolling
description	In the process of copper alloy hot continuous rolling, the problem of copper sticking to the roller seriously affects the surface quality, performance, and service life of the copper products. Roll sticking occurs as the adhesion energy of Cu is lower than that of Fe and the Fe-Cu interface, and the severe surface deformation which forces the copper into direct contact with the roll during the process of profile rolling. Based on the copper deformation law and adhesion phenomenon in the hot continuous rolling process, a rolling deformation model and roll copper adhesion model or copper alloy hot continuous rolling were established, and their simulation was realized using finite element software. Through finite element modeling of the hot rolling deformation zone, the distribution of the temperature, contact normal stress, and exposure rate in the hot rolling deformation zone were obtained, which were consistent with the actual roll adhesion phenomenon and copper adhesion position. To address the copper sticking behavior of the rolls, the process optimization method of matching the motor speed with the elongation coefficient (the 1# and 2# motor speeds were adjusted to 1549 r/min and 1586 r/min, respectively), adjusting the roll gap to 7.9 mm, and increasing the number and pressure of roll spray nozzles were put forward, which effectively solved the problem of copper sticking to the roll, significantly improved the surface quality of the copper and the service life of the roll, and can be used in production.
format	article
author	Yang Liu Yan Peng Xiaobo Qu
author_facet	Yang Liu Yan Peng Xiaobo Qu
author_sort	Yang Liu
title	Mechanism of and Key Technologies for Copper Bonding in the Hot Rolling of SCR Continuous Casting and Rolling
title_short	Mechanism of and Key Technologies for Copper Bonding in the Hot Rolling of SCR Continuous Casting and Rolling
title_full	Mechanism of and Key Technologies for Copper Bonding in the Hot Rolling of SCR Continuous Casting and Rolling
title_fullStr	Mechanism of and Key Technologies for Copper Bonding in the Hot Rolling of SCR Continuous Casting and Rolling
title_full_unstemmed	Mechanism of and Key Technologies for Copper Bonding in the Hot Rolling of SCR Continuous Casting and Rolling
title_sort	mechanism of and key technologies for copper bonding in the hot rolling of scr continuous casting and rolling
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/8a7a802a154443fc8fa1b22081d60b97
work_keys_str_mv	AT yangliu mechanismofandkeytechnologiesforcopperbondinginthehotrollingofscrcontinuouscastingandrolling AT yanpeng mechanismofandkeytechnologiesforcopperbondinginthehotrollingofscrcontinuouscastingandrolling AT xiaoboqu mechanismofandkeytechnologiesforcopperbondinginthehotrollingofscrcontinuouscastingandrolling
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Mechanism of and Key Technologies for Copper Bonding in the Hot Rolling of SCR Continuous Casting and Rolling

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