In electronics production, a clean and reliable soldered connection is the be-all and end-all. Soldering enameled copper wires to soldering posts poses a particular challenge, as different materials come into contact with each other and have different melting temperatures.
With the right technique and the suitable soldering tip the connection is secure and permanent.
Selecting the right soldering tip for soldering copper wire
In order to achieve the desired solder joint quality, it is crucial to select the right soldering tip. The right soldering tip size and shape, power, soldering temperature and the surface finish of the tip have a significant influence on the quality. Precision is particularly important when working with enameled copper wire on coils, transformers or chokes whose ends are attached to soldering posts.
The challenges when soldering enameled copper wire are manifold due to the different melting temperatures and must therefore be given special consideration when selecting the right soldering tip.
Challenges when soldering copper wire
The insulating varnish around the wire to be removed has a high melting temperature (often over 400 °C). This cannot be soldered and must therefore be melted or burnt off. The solder must not be overheated in order to avoid poor connections. In addition, the flux used must not be allowed to carbonize due to excessive temperatures before it can act on the surfaces of the components to be joined.
The plastic that is embedded in the soldering post also plays a special role. Its melting point is considerably lower, which is why it must be protected.
HAKKO offers a wide range of suitable soldering tips for the correct soldering of copper wire, which are characterized by a conical or cylindrical shaft with a slanted tip.
Find out more about the optimum soldering tip selection for soldering copper wire and discover the advantages of the HAKKO soldering tools.