淬火冷却介质换热系数研究进展

Development of research on heat-transfer coefficient for quenchant

淬火冷却介质换热系数不仅是评定淬火介质冷却能力的主要参数,也是淬火过程数值模拟中最重要的边界条件之一。它受很多因素的影响,如工件的材质、尺寸、表面状态等,因此很难精确测定。本文概述了近年来有关换热系数的研究,并对以后的研究工作做了展望。

Heat-transfer coefficient is not only the main parameter for evaluating the cooling ability of quenchants, but also one of the most important boundary conditions for quenching process simulation. It depends on many factors, such as material, size, surface conditions of a part, and so on. It is,therefore, difficult to evaluate the heat-transfer coefficient accurately. The development of the research on heat-transfer coefficient in recent years was reviewed, and the future research work was prospected.