Research on Welded Pipe and Tube Pass Design Virtual Methods

Abstract

Welded pipe and special pipe get more and more applications; however, the difficulty of pass design method limits welded pipe manufacture. The paper discusses welded pipe roll pass design method based on CATIA, and roll CAD/CAPP computer aided design system based on AutoCAD, and gives roll virtual design methods which use roll CATIA, CAD/CAPP system.

Comparison of Two Different Rolling Processes on Microstructure and Properties of Ferrite-Bainite Dual-Phase Pipeline Steels

“…Long-distance pipeline steels must inevitably face severe running environment, such as earthquake, debris flow, landslide, etc. Hence, pipeline steels must have high deformation resistance [11]. At present, acicular ferrite microstructure has been widely accepted in the high-strength pipeline steels, but these acicular ferrite steels have high yield-strength ratio [12], resulting in poor deformation resistance.…”