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Aluminum alloy material having an excellent sea water corrosion resistance and plate heat exchanger
Aluminum alloy material having an excellent sea water corrosion resistance and plate heat exchanger
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机译：具有优异的耐海水腐蚀性能的铝合金材料和板式换热器
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摘要
An aluminium alloy material having an excellent sea water corrosion resistance comprises an aluminium alloy substrate whose ten-points average surface roughness Rz, which is the average of five greatest peak-to-valley separations on the surface, is controlled at 0.3 µm or over, an organic phosphonic primer film formed on a surface of the aluminium alloy substrate, and a fluorine resin paint film formed on the primer film and having a dry average thickness of 1 to 100 µm. A plate heat exchanger having an excellent sea water corrosion resistance is also provided wherein the aluminium alloy material is used as a heat transfer unit using sea water as cooling water.
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