UTILIZATION OF LOW-FREQUENCY INDUCTION HEATING FOR CYLINDRICAL COMPONENTS

摘要

Applicable investigations were conducted on hollow thick-walled cylinders for the purpose of evaluating 60 cycle induction heating as a method of heating for through hardening. The cylinders, hardened and tempered in specially constructed induction coils, were compared with similar cylinders heat treated in gas furnaces by conventional heating techniques. Slightly higher temperatures and shorter heating times, than would normally be used in conventional practice, were employed. Metal¬lurgical studies were performed on all cylinders and based on these studies, evaluations were made of the physical properties.