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首页> 外文期刊>Journal of Materials Engineering and Performance >Experimental Assessment of High Heating Rates in Induction Heating with Temperature-Sensitive Lacquers
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Experimental Assessment of High Heating Rates in Induction Heating with Temperature-Sensitive Lacquers

机译：温度敏感漆加热高加热速率的实验评价

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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 a high-speed imaging system. The positions of specific isotherms over time were precisely measured by image analysis. A 4340 steel cylinder and two spur gears of the same material were investigated. One spur gear was treated at high frequency, and the other one at simultaneous dual frequency. In both cases, the temperature started to rise at the root of the teeth and then expanded along the flanks. The heating rates were higher at the tips than at the roots for both treatments, with higher values for the dual-frequency treatment. The layer of transformed material was similar for both treatments, but the transformation temperature varied greatly. It was found to be 50-100 A degrees C higher than the equilibrium values, depending on the local heating rate.
机译：通过基于高速成像系统记录的温度敏感的漆，通过非接触式光学方法测量感应加热部件表面的快速发展温度场。 通过图像分析精确地测量特定等温线的位置。 研究了4340钢缸和相同材料的两个正齿轮。 一个正齿轮以高频处理，并以同时双频处理。 在这两种情况下，温度开始在牙齿根部处升高，然后沿着侧面膨胀。 尖端的加热速率高于两种处理的根部，具有更高的双频处理值。 转化材料层对于两种处理相似，但转化温度大大变化。 根据局部加热速率，发现比平衡值高50-100度。

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