EUROPEAN STEEL TECHNOLOGY AND APPLICATION DAYS 2017 - ESTAD 2017

Louisville | Cincinnati | Evansville | Columbus | Indianapolis Improving Reliability for Steel Mill Furnace Rolls Author: Jeremy Rydberg Atlas was approached by a major steel manufacturer and asked to develop methods to improve overall reliability of steel mill furnace rolls. To accomplish this it was determined we would need to develop methods to inspect new, used and failed furnace rolls to determine why they fail and how to avoid it. Destructive examination tests were performed on used and failed furnace rolls to determine causes of failure. Phased array ultrasonic testing and fluorescent dye penetrant testing where developed to identify these flaws through non-destructive examination (NDE) methods that could be applied to rolls that may be put back into service. Through the destructive and non-destructive examination methods it was determined that the leading causes of premature roll failure stem from poor weld filler metal choices, poor welding craftsmanship and low quality castings. To improve furnace roll reliability Atlas has qualified materials suppliers, developed qualified weld procedures and developed NDE methods to qualify new and used and rolls for service. It is expected that implementation of these methods will lead to improved furnace roll reliability. Jeremy Rydberg VP Corporate Development Atlas Machine and Supply JR@atlasmachine.com