钢管2025，Vol.54Issue(4)：37-40,4.DOI:10.19938/j.steelpipe.1001-2311.2025.4.37.40
浆体输送用热轧空冷贝氏体无缝钢管的开发与应用
Development and Application of Hot-rolled,Air-cooled Bainite Seamless Steel Pipe for Slurry Transportation Service
周晓锋 1黄永智 1王凌云1
作者信息
- 1. 天津钢管制造有限公司,天津 300301
- 折叠
摘要
Abstract
Addressing the problem of erosion wear staying with the slurry transportation piping,a new type hot-rolled,air-cooled bainite wear-resistant seamless steel pipe is researched and developed.Owing to the optimization of the chemical composition of the steel,and the technical innovation of the straight thread connection,the material properties and the process efficiency have been enhanced coordinately.The high hardness of the material is ensured,and at the same time its plasticity and toughness are remarkably improved,resulting in the pipe's yield strength ≥758 MPa,and 0 ℃impact energy ≥32 J.Thanks to the employment of the air-cooled bainite steel-making process which possesses advan-tages like simplified process and low cost,and the application of the innovative straight thread connection as developed,the said steel pipe has been successfully used in a certain copper tailings treatment project in Africa.The actual operation data show that the annual erosion wear is less than 0.20 mm,and comparing with the conventional welding process,the construction duration is shorted by 70％.关键词
耐磨无缝钢管/浆体输送/空冷贝氏体钢/直连螺纹Key words
wear resistant seamless steel pipe/slurry transportation/air-cooled bainite steel/straight thread con-nection引用本文复制引用
周晓锋,黄永智,王凌云..浆体输送用热轧空冷贝氏体无缝钢管的开发与应用[J].钢管,2025,54(4):37-40,4.
