为了达到最高的效率，家用炉子和锅炉必须在冷凝模式下运行。由于烟气冷凝液的腐蚀性，二次热交换器必须选择耐腐蚀材料。本文介绍了在天然气行业和联邦政府的资助下正在进行的耐腐蚀材料的研究现状。讨论了三种不同的实验室研究。在这些研究中，评估了各种金属合金在周期性暴露于烟气冷凝液时的耐腐蚀性，烟气冷凝液中的氯化物含量增加。这些研究评估了各种制造方法的耐腐蚀性，此外，还评估了在现实和局部变化的冷凝条件下，冷凝腐蚀性梯度对选定金属材料和各种制造方法的耐腐蚀性的作用。 本文介绍了这些测试的结果和意义。单位:I-PCITION:研讨会，ASHRAE交易，1985年，第91卷，pt。你好，檀香山2B

To achieve the highest efficiency, residential furnaces and boilers must operate in the condensing mode. Corrosion-resistant materials must be chosen for the secondary heat exchanger due to the corrosivity of the flue-gas condensate. This paper describes the of research status on corrosion-resistant materials being conducted under the sponsorship of the gas industry and the federal government.Three different laboratory studies are discussed. In these studies, various metal alloys were evaluated for resistance to several modes of corrosive attack while cyclically exposed to flue-gas condensate that was spiked to increase its chloride level. These studies evaluated the corrosion resistance of various fabrication methods and, in addition, evaluated the role of condensate corrosivity gradients on the corrosion resistance of selected metallic materials and various fabrication methods under realistic and locally varying condensing conditions. The results and implications of these tests are presented.Units: I-P