Experimental Assessment of High Heating Rates in Induction Heating with Temperature-Sensitive Lacquers
作者： N. Vanderesse , B. Larregain , F. Bridier , P. Bocher
DOI: 10.1007/S11665-018-3499-Z
关键词:
摘要: The fast evolving temperature fields at the surface of induction-heated parts were measured by a contactless, optical method based on temperature-sensitive lacquers recorded with high-speed imaging system. positions specific isotherms over time precisely image analysis. A 4340 steel cylinder and two spur gears same material investigated. One gear was treated high frequency, other one simultaneous dual frequency. In both cases, started to rise root teeth then expanded along flanks. heating rates higher tips than roots for treatments, values dual-frequency treatment. layer transformed similar but transformation varied greatly. It found be 50-100 °C equilibrium values, depending local rate.
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