time:2022-07-26 source:sznbone Views:
Many gold-plated jewelry are made of copper as the main component, and a layer of gold is plated on the surface of the copper by electroplating, but the gold plating layer is very thin, so there is still a difference between such gold-plated jewelry when you look closely, although the luster is bright. , Soft, but not durable, if the gold-plated layer is worn for a period of time, the gold-plated layer will be worn off, then the brass tire will be exposed, resulting in a dim and different red and yellow, and the color of the worn-out gold-plated area will still be will turn black.
Gold plating identification method:
Because it is gold-plated, there will be clues that the gold is not completely plated. Usually, you can look for such traces at the joints of the jewelry or in the depressions of the edges and corners, and there will be places where the gold is not plated. Because gold-plated jewelry is made of copper or other metals, it is very light to weigh, without the feel of gold falling, and there is a crisp "dang beep" sound if it falls. Generally, there is no imprint, if there is an imprint, it is the imprint of 18KGP.