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Aluminiumlegeringer med optimale kombinasjoner av formbarhet, korrosjonsbestandighet og varmebearbeidhet, og anvendelser av disse i varmeveksler
Aluminiumlegeringer med optimale kombinasjoner av formbarhet, korrosjonsbestandighet og varmebearbeidhet, og anvendelser av disse i varmeveksler
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机译:具有可成形性,耐腐蚀性和热加工性的最佳组合的铝合金及其在热交换器中的应用
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摘要
An aluminum alloy article containing the alloying amounts of iron, silicon, manganese, titanium, and zinc has controlled levels of iron and manganese to produce an alloy article that combines excellent corrosion resistant with good formability. The alloy article composition employs a controlled ratio of manganese to iron and controlled total amounts of iron and manganese to form intermetallic compounds in the final alloy article. The electrolytic potential of the intermetallic compounds match the aluminum matrix of the article to minimize corrosion. The levels of iron and manganese are controlled so that the intermetallic compounds are present in a volume fraction that allows the alloy article to be easily formed. The aluminum alloy composition is especially adapted for extrusion processes, and tubing that are used in heat exchanger applications.
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