Tencent Digital (Compile: Guti) Apple's new bright black iPhone 7 has become the focus of attention for everyone, and now we may wish to re-savor the video at the conference to see if this stunning black iPhone 7 is How to come to us.
In the process of making, the most unique part is called "rotary 3D polishing" by Jony Ive. The mechanical equipment can be polished by special aluminum powder to produce a mirror effect. This is better than chemical etching or polishing.
Then the iPhone 7 will be placed in an anodizing tank, which will oxidize the aluminum by vibration of the power to increase corrosion resistance.
The inner porous design can then better absorb black fuel, ensuring maximum saturation through the capillary effect of a single set of materials. And this is why the black of iPhone 7 can be so pure.
In the final step, the iPhone 7 will be polished with an ultra-fine iron particle to polish the outer layer of the anodized film, but Apple has stated that this layer is more vulnerable and therefore needs to be used with greater care.
Source: appleinsider
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