引言水是铝锭浇铸中所用的最普通的冷却介质。在用直接激冷(DC)和强制直接激冷(FDC)浇铸时,铸锭冷却中的热传递过程是传导,沸腾、强制对流及自由落膜式对流。铸锭表面上的不同传热区示于图1。不同传热区的典型热流值示于图2。由图可见,在沸腾传 Introduction Water is the most common cooling medium used in aluminum ingot casting. In direct chilling (DC) and forced direct chilling (FDC) casting, ingot cooling heat transfer process is conduction, boiling, forced convection and freefall convection. The different heat transfer zones on the ingot surface are shown in Figure 1. Typical heat flow values ​​for different heat transfer zones are shown in Figure 2. Can be seen from the figure, in the boiling pass