Zavgorodny A. Expansion of assortment and quality of high-quality metal based on improved technology and equipment for its revision

Research object - technologies and equipment for straightening pipe and bar sections metal rolling. Purpose - increase of technical and economic processes indicators of editing by a bend for pipe and bar sections metal rolling. Research methods and apparatus - numerical mathematical modeling, computer-aided design, experiments in laboratories and industrial plants. Theoretical and practical results - automated analysis and design methods, and also recommendations for improving technologies and equipment for straightening pipe and bar sections metal rolling. Novelty - evaluation of the stress-strain state and resulting longitudinal curvature performances taking into account presence of initial longitudinal curvature in the horizontal and vertical planes, roller adjustment system, the real nature distributions of the geometric cross-sections parameters, the intensity of strain hardening bar sections products subjected to editing by a bend, and also possible ovalling pipe cross-sections consideration subjected to straightening machines with slanted rollers. Implementation degree - practical recommendations for improving production of the pipe and bar sections metal rolling, software for automated design and management (there is information on the use). Scope of use - shops and design departments of metallurgical and machine-building enterprises, and industrial research.