Regarding how to effectively prevent oxidation and blackening of flexible copper braided connector, we first need to understand the oxidation process of copper braided wires.
The process of copper oxidation is very complex, mainly due to environmental factors, and the composition, temperature, properties, surface state, chemical composition, organizational structure, and stress state of environmental media can have a significant impact on copper oxidation. Under normal temperature conditions, as long as copper is exposed to air, oxidation may occur and a thin oxide film is formed on the surface of the copper, which is the blackening phenomenon we see.
Since bare copper braided wires will oxidize and turn black as long as it is exposed to air, in order to prolong its use time and prevent copper wire soft connection oxidation, can we use electroplating to plating a layer of tin on the surface of bare copper to effectively prevent copper oxidation?
The process of tinning copper wire is slightly more complex than bare copper wire. After drawing pure copper rods into wires, a thin layer of tin is coated on the surface of the copper wire using the hot tin plating process to form tinning wire. This type of wire has a silver appearance because tin is a silver metal. Tinned copper wire has a relatively soft material and good conductivity. Compared with bare copper wire, it has stronger corrosion resistance and oxidation resistance, which can greatly extend the service life of copper braided tape soft connections.
The second method is to add insulation sheath or heat shrink tubing.