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Location: 首页 » JETOSH News Center » Industry News » Reasons for blackening of tin on terminal wires

Reasons for blackening of tin on terminal wires

Back to list Source:JETOSH Browse:- Release date:2020-03-19 15:24:00【Big in Small

                                                     Reasons for blackening of tin on terminal wires

In work, we found that the terminal wire became black after being tinned. I wonder what the reason is. The following Jetosh terminal wire processing factory will tell you.

cable

In fact, the reason why the terminal line turns black after being tinned is very simple. Many people think that it is a climate problem. It may be that the weather is too cold, the temperature is too high or too high, and so on. In fact, the treated copper wire or tin-plated copper wire will oxidize without sticking to tin. Copper is oxidized in two steps in the air. First it reacts with oxygen to form copper oxide; then copper oxide and air Carbon dioxide reacts with water to produce green patina, and the oxidation of copper is a normal chemical reaction. The more water droplets attached to the surface of the product when the humidity decreases, the more airless the air or the lower the temperature, the more water droplets on the surface become. It is difficult to volatilize, which accelerates the oxidation reaction between copper and air, resulting in blackening of tin on electronic wires.

The above is the reason why the tin on the terminal wire is blackened by the Jetosh terminal wire processing factory. If you want to know more about the wiring harness expertise, you can bookmark our website and we will bring you more and more relevant information.

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