Soldering is nothing more than a permanent method of joining metal parts with a binder called solder, which has a lower melting point than the parts being joined. The surface of the joined elements is not completely fused, and only the binder penetrates tightly between the joined elements. In order for soldering to be successful, a metallic bond must be formed between the soldered parts and the solder.
Due to the temperature, we distinguish the following types of soldering:
- soft soldering (temperature below 450°C)
- hard soldering (temperature above 450°C)
- high-temperature soldering (achieved temperatures above 900°C).
How is brazing different from welding? Welding is a more complicated process as opposed to soldering. In addition, soldering connects small parts, and welding small and large. In addition, we do not need protective clothing or covers for soldering – it is safer. Welding differs primarily in that the edges of the material are melted during welding, and the soldering is reversible.
The bonding agent in soldering is solder. Solder is a metal or metal alloy that is used for soldering as a filler for a weld. The solder may be in the form of sticks, solid wire or ducted wire.
Classic soldering is mainly used in electronics and jewelry.
The process opposite to soldering is called desoldering. This process is used in the case of repair or replacement of elements already soldered. Soldering irons are used for soldering and desoldering irons are used for desoldering.
