Radiating fin formed of aluminum alloy and method for producing the same
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United States of America Patent
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Apr 14, 2020
Grant Date -
Mar 16, 2017
app pub date -
Nov 2, 2016
filing date -
May 2, 2014
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Abstract
An aluminum alloy has high thermal conductivity without requiring an addition of metal elements such as iron and a method for producing the aluminum alloy. The aluminum alloy is obtained from a semi-solid material with a chemical composition containing 2 to 6 wt % of silicon (Si) and 0.7 wt % or less of magnesium (Mg), with the balance being aluminum (Al) and unavoidable impurities. It has a granular crystalline structure. The aluminum alloy is produced by a heating step of semi-solid material. A forming step is performed with semi-solid material obtained in the heating step S1. After the forming step, a heat treatment step is performed at 190° C. to 290° C. for 1 to 5 hours.
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