【摘要】 叙述管内电镀(电沉积)多孔质表面的制备原理和影响镀层晶体结构的工艺条件。介绍应用自行研制的低温液体沸腾换热试验装置、以液氮为沸腾工质测试电镀多孔质表面的强化沸腾换热性能。试验结果表明,电镀多孔质表面的沸腾温差一般比光滑平表面低约3～4倍。与其它加工方法相比,电镀法具有工艺简单、成本低、管内外表面皆可加工等优点,是一种有发展前途的加工方法。更多还原

【Abstract】 In this paper,the measurement of the characteristics of enhancementof boiling heat transfer with liquid nitrogen as a boiling mediumusing a testing apparatus for boiling heat transfer of cryogenic liquiddeveloped by our group have been reported.The testing results haveindicated that the boiling temperature differences between wall surfaceand boiling liquid for electrodepositing porous surfaces in general lowerabout 3-4 times than that of smooth plane surface in tube.By compa-rison with other technique in preparation for porous surfaces eletro-deposition has the advantages of simple technology,low cost and easymanufacture over the surface outside and inside tube.更多还原