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Fitness-for-Service Assessment and Life Extensions of Meltshop Cranes

High-capacity meltshop cranes exposed to harsh service environments can exhibit damages, such as cracking, during regular day-to-day operation and mostly toward end of design life. These damages can lead to equipment failure that will result in longer downtime, lost production and potential safety risks. In-depth thermal-structural assessments are a valuable tool for operators to characterize current condition and remaining life of equipment to develop a fundamental understanding of crane condition, informing future operations. This article presents the modern approaches and benefits from several structural Fitness-for-Service assessments of high-capacity meltshop cranes. The benefits from this approach are discussed considering established design-by-rule specifications where calculated stresses are based on elastic analysis (i.e., AIST Technical Report No. 6) with resulting insights, life extension recommendations, and benefits to operators presented.
Product:
2025/06 AIST Iron & Steel Technology June
PR-PM0625-4
Michael Ross, Christopher Long, Majid Maleki, Lucio Eustaquio dos Santos, Chad Van der Woude, et al.
June 01, 2025
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