HYDROGEN AND NITROGEN CONTROL AND BREAKOUT WARNING MODEL FOR CASTING NONDEGASSED STEEL

摘要

Comprehensive studies have been performed to determine the various sources of hydrogen and nitrogen, and factors governing their dissolution in and removal from steel. As a result various practices have been developed to control the ingress of hydrogen and nitrogen into the steel at each processing stage. These practices include an on-line model which provides an advance warning to the caster operators when hydrogenitrogen-related caster breakout is imminent.