Heat Transfer Characteristics of a Hot‐Rolled Seamless Steel Tube During a Controlled Cooling Process. Issue 1 (19th October 2022)

• Record Type: Journal Article
• Authors: Yuan, Guo; Zhang, Rui; Zhang, Yansheng; Kang, Jian; Li, Zhenlei; Liu, Xiaojin; Wang, Jun
• Is Part Of: Steel research international. Volume 94:Issue 1(2023)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-10-19
• Subjects: asymmetric cooling -- controlled cooling -- heat exchange mechanism -- hot-rolled seamless steel tubes -- jet impingement cooling; Steel -- Periodicals; Steel -- Metallurgy -- Periodicals; 669.142
• DOI: 10.1002/srin.202200150
• Languages: English
• ISSNs: 1611-3683

Abstract

Abstract : Owing to special annular section shapes, the controlled cooling technology widely used in the field of steel plates is difficult to develop successfully and apply stably in the field of steel tubes. In this research, a finite element simulation method is used to study the difference in flow field distribution between a steel plate and a steel tube with jet cooling. Combined with the heat transfer characteristics of the jet cooling process at different positions, the anisotropy of the cooling heat transfer on the outer surface of a steel tube is revealed. The heat transfer characteristics of the inner and outer walls of a high‐temperature steel tube with the condition of simultaneous cooling are further analyzed. The results show that with the increase of the steel tube rotation speed, the temperature gradient between the wall of steel tube and the center position shows a decreasing trend. With the increase of the axial water velocity, the heat transfer intensity of the inner wall shows an increasing trend. The theoretical research results are successfully applied to the research and development of online controlled cooling technology and the equipment of hot‐rolled seamless steel tubes, and this achieves good application performance. Abstract : In this study, the simulation method is used to obtain the distribution characteristics of flow field and temperature field at different jet positions. The heat transfer characteristics of the inner and outer walls of the steel pipe are clarified. What's more, theoretical research is successfully applied in industrial production of steel pipes.