淬火介质的传热系数对于热处理模拟是必要的。淬火油的冷却特性根据它们的种类和用途而有很大变化。用户根据所要求的硬度和变形量要求来选择合适的淬火油。特别是通过搅拌和减压可提高冷却性能。因此,我们根据淬火油的用途和种类鉴别其传热系数。冷却特性因淬火油种类的不同而有很大的改变。不同种类淬火油冷却特性的差异主要取决于沸腾的温度范围和最大传热系数。另一方面,在对流阶段,在沸腾期,冷却特性没有什么变化。即使改变淬火油温度,传热系数也没有明显的变化。当淬火油被搅拌时,蒸汽膜和对流期的传热系数增大,但是沸腾期的传热系数仅略有变化。当淬火油被减压时,具有高传热系数的温度区域向低温侧移动。此外,蒸汽膜期的传热系数下降。为了提高热处理模拟精度,遵照现场使用的实际情况计算传热系数乃至为重要 The heat transfer coefficient of quenching medium is necessary for heat treatment simulation. The cooling characteristics of quench oils vary greatly depending on their type and application. Users according to the required hardness and deformation requirements to select the right quenching oil. In particular, the cooling performance can be increased by stirring and depressurizing. Therefore, we identify the heat transfer coefficient based on the use and type of quench oil. Cooling characteristics due to the different types of quenching oil has changed a lot. Different types of quenching oil cooling characteristics of the difference depends on the boiling temperature range and the maximum heat transfer coefficient. On the other hand, during the convection stage, there is no change in cooling characteristics during boiling. Even if the quenching oil temperature is changed, there is no obvious change of heat transfer coefficient. When the quench oil is stirred, the heat transfer coefficient of steam film and convection period increases, but the heat transfer coefficient during boiling period changes only slightly. When the quenching oil is depressurized, the temperature region having a high heat transfer coefficient moves to the low temperature side. In addition, the heat transfer coefficient of the vapor phase decreased. In order to improve the simulation accuracy of heat treatment, it is even important to calculate the heat transfer coefficient according to the actual situation of the field