用直径为５０ ｍ ｍ 、厚度为２０ ｍ ｍ 的平板实验研究了倾斜平板在过冷液氮中的淬冷沸腾传热， 方位角为０°（热面水平向下） 到９０°（热面垂直）， 液氮过冷度为０～１３ Ｋ。由实验结果得到， 在所有方位角情况下， 随着液氮过冷度的提高， 在热流密度曲线图上的热流密度曲线向右上方移动； 从最小膜态沸腾点向过渡膜态沸腾转变时， 有一热流密度迅速提高的突变过程， 过冷度越大， 这种突变过程表现得越突出。 The plateau experiment with a diameter of 50 m and a thickness of 20 m m was used to study the quenching and boiling heat transfer of inclined slab in subcooled liquid nitrogen with an azimuth angle of 0 ° (hot surface level downwards) to 90 ° Vertical), liquid nitrogen undercooling of 0 ~ 13 K. The experimental results show that at all azimuths, the heat flux density curve on the heat flux density curve moves to the upper right as the subcooling degree of liquid nitrogen increases. From the minimum film boiling point to the transitional film boiling transition , There is a sudden increase in heat flux density of the mutation process, the greater the degree of undercooling, the more prominent this mutation process.