对大面积高纯铜５０ｍｉｎＸ１０ｍｍ×４ｍｍ试样，表面涂敷环氧绝缘漆，在一个大气压饱和ＬＨｅ中进行传热性能研究。同光滑铜试样传热比较，测量液氦核沸腾临界热通量（ｑｃＨＦ）、膜沸腾最小热通量（ｑＭＨＦ）、导热系数及其随散热角度变化。实验表明钢表面涂敷环氧绝缘漆后，其核沸腾临界热通量、膜沸腾最小热通量都增加，导热系数减小近１／３，且试样不论水平放置、垂直放置其核沸腾曲线都向右偏移。 A large area of ​​high-purity copper 50minX10mm × 4mm sample, the surface coated epoxy insulating paint, heat transfer performance in an atmospheric saturated LHe. Compared with the heat transfer of the smooth copper sample, the critical heat flux (qcHF), the minimum boiling heat flux (qMHF) and the thermal conductivity of the liquid helium nuclei are measured. Experiments show that the surface of the steel coating epoxy insulating paint, the critical heat flux of nuclear boiling, the minimum film boiling heat flux increases, the thermal conductivity decreased by nearly 1/3, and the sample regardless of horizontal placement, vertical placement of its nuclear boiling The curves are offset to the right.