The flux-cored solder wire leaves a channel inside for placing the rosin flux, which can better help product soldering. The solid core solder wire, as the name implies, refers to the solid core of the solder wire, and no rosin flux is poured in the middle, hence the name solid core solder wire.
1. Universality
In terms of versatility, the solid core solder wire needs to be combined with a flux composed of rosin and a small amount of active agent in welding. There are many processes during welding. The flux must be applied first, and the solder wire must be melted with a soldering iron tip. The limitations of the process are relatively large, especially after the popularity of automatic soldering machines. Therefore, in most occasions, flux-cored solder wire is used.
2. Production efficiency
In the welding process of solder wire, rosin is a kind of flux, its function is to make the solder flow easily, improve the fluidity of the liquid solder, and also prevent the oxide film from being formed on the metal to be soldered. Therefore, in terms of production efficiency, the flux cored solder wire contains flux, and continuous welding can be used, and the welding efficiency will be greatly improved. The solid core solder wire cannot be used for continuous welding because it does not contain flux, so the welding efficiency will be lower.
3. Features
The solid core solder wire has little smoke during welding and very little residue after welding. It is suitable for some special products that cannot be cleaned and have little welding smoke. In terms of appearance, the surface of the flux-cored solder wire will look brighter and smoother, while the surface of the solid-cored solder wire will be slightly duller.
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