Shulou(Shulou.com)11/24 Report--

CTOnews.com, July 21, when Apple launched the iPhone 6s on September 9, 2015, it mentioned the use of 7000 series aluminum alloys used in the aerospace industry in both press releases and product pages.

According to the list published by the US Trademark and Patent Office (USPTO) today, Apple has obtained a technology patent to improve the performance and appearance of aluminum alloy after eight years, which is expected to be used in future iPhone, Mac and other products.

The report said that the commercial 7000 series aluminum alloy is mainly used in the aerospace industry and is not attractive enough in the consumer market.

Moreover, the alloy designed for decorative purposes may also lead to anodized surface fragmentation, stress corrosion cracking (SCC) and mechanical failure.

Apple patented the 7xxx series of aluminum alloys, which have better properties than known alloys and can meet one or more properties and / or processing variables.

Apple said the new aluminum alloy can significantly reduce surface fragmentation caused by anodizing, reduce stress corrosion cracking (SCC), extend the service life of aluminum alloy, and can withstand impact.

The test picture attached to CTOnews.com is as follows. In the hot-dip ASTM G30U bending test at 65 degrees Celsius and 90% relative humidity (RH), the failure percentage of A78 and A79 aluminum alloy is significantly lower than that of A76.

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