Abstract
Blow and pin holes are the most common defects in open cast billet production. It is a cause of significant rolling mill scrap due to the incidence of cracks on end product. Many causes are pointed out as sources of these defects. However, few papers has studied their formation based on measured values of H, N e O gases in liquid steel and estimated ones at solidification front. The influence of several process variables are investigated in this paper, mainly those factors related to the amount of H in steel. Heats using sintering synthetic slags and conventional slags are compared. It is developed a blow - pin holes prediction model based on the chemical composition and gases, through Thermo-calc program. The model results are compared to literature ones and experimental data. The Thermo-Calc results are used to be possible, in real time, adjust the process and avoid the appearance of these defects.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
