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首页> 外文期刊>DVS-Berichte >Improved performance of brazed plate heat exchangers made of stainless steel type EN 1.4401 (UNS S31600) when using a Iron-based braze filler
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Improved performance of brazed plate heat exchangers made of stainless steel type EN 1.4401 (UNS S31600) when using a Iron-based braze filler

机译：使用铁基钎料时，由EN 1.4401型不锈钢（UNS S31600）制成的钎焊板式热交换器的性能得到改善

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摘要

The mechanical properties of brazed plate heat exchangers, made of stainless steel plates type EN 1.4401, brazed with a new iron-based braze filler "AlfaNova, have been evaluated. The results were compared with heat exchangers brazed with a copper (pure copper) and a nickel-based (MBF 51) braze filler. Their resistance against pressure- and temperature fatigue, which are important for the lifetime of a heat exchanger, and the burst pressure, which is important for pressure vessel approvals, were tested and evaluated. It was found that the pressure fatigue resistance was extraordinary good for the heat exchangers brazed the iron-based filler and its temperature fatigue resistance was better than those brazed with nickel-based braze filler and slightly lower than those brazed with copper. The highest burst pressures were achieved for the copper brazed units followed by the iron-brazed units and rearmost the nickel-brazed units.
机译：已评估了由EN 1.4401型不锈钢板制成的钎焊板式热交换器的机械性能，并钎焊了新型铁基钎料“ AlfaNova”。将结果与钎焊有铜（纯铜）的热交换器进行了比较。测试和评估了镍基（MBF 51）钎料对耐压和温度疲劳性（对于热交换器的使用寿命至关重要）以及对于压力容器的批准至关重要的破裂压力。结果发现，对于钎焊铁基钎料的换热器，其耐压力疲劳性能非常好，其温度疲劳强度比钎焊镍基钎料的热交换器要好，而钎焊铜钎焊的温度疲劳强度则稍低。先是铜钎焊单元，然后是铁钎焊单元，最后是镍钎焊单元。

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