HIGHLY CORROSION-RESISTANT ALUMINUM ALLOY FOR HEAT EXCHANGER TUBE AND METHOD FOR MANUFACTURING HEAT EXCHANGER TUBE USING THE SAME
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United States of America Patent
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Issued Date -
Jun 23, 2011
app pub date -
Dec 21, 2010
filing date -
Dec 22, 2009
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Abandoned
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Abstract
Disclosed are a highly corrosion-resistant aluminum alloy for a heat exchanger tube and a method for manufacturing a heat exchanger tube using the same. The highly corrosion-resistant aluminum alloy includes 0.05 to 0.5 wt % of iron, 0.05 to 0.2 wt % of silicon, 0.6 to 1.2 wt % of manganese, 0.15 to 0.45 wt % of copper, 0.05 to 0.3 wt % of at least one of zirconium and boron, and the remainder of aluminum and impurities. The aluminum alloy aluminum alloy for a heat exchanger tube improves corrosion resistance without affecting the physical properties other than corrosion resistance, through improvement in composition of the alloy, and ensures sufficient corrosion resistance without thermal arc spraying of zinc, resulting in a simple process, which leads to improvement in manufacturing efficiency and productivity of products.
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