Steel billet behaviour during hot rolling
The present project work has allowed a deeper knowledge of HCC austenitic stainless steel billet behaviour during hot rolling to be obtained. The different stages of this project have attained the previous objectives and have contributed to improving the HCC billet aptitude for hot rolling. In the same way the development of this project has helped to establish the optimum grinding criteria, cutting down production costs without any quality damage in rolled products. From the theoretical point of view the influence of several production parameters on the surface and subsurface HCC billet quality has been evaluated. It has been shown that the most important parmeters have been: number of work cycles and over heating temperature. So, a mathematical formula that relates these parameters has been found. Hot torsion tests of different HCC billet zones of the same transverse section have proved that the billet corners are the most critical parts. In the same way the low ductility of HCC billet subsurface dendritic zones has been shown. After all these conclusions the previous grinding criteria have been modified in order to develop the industrial part of the project in ACENOR-LARRONDO. In this plant there is an HCC machine for 145 mm billets.
Bibliographic Reference: EUR 15470 ES (1995) 68pp., FS, ECU10
Availability: Available from the (2)
Record Number: 199512150 / Last updated on: 1996-01-26
Original language: es
Available languages: en,fr,de,es