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The enameled wire is not oxidized for a big reason
- Jan 25, 2018 -

Enameled wire is not oxidized, its larger because protected by a layer of paint on the surface of the package online, and no matter how changes of outer environment, the paint will play itself has characteristics, has some of anti-oxidation function.

In general, copper is oxidized because its surface can be eroded by the atmosphere, water or oil, which produces copper oxide and cuprous oxide, and thus the phenomenon of black and dark red.

The black line refers to the black line of a segment of the copper surface, and the whole black spot will appear, which is the result of the deeper oxidation.

On the surface of copper wire oxidation, there are scattered spots and spots.