In electrical engineering, soft solder is used because it is less about achieving mechanical strength and more about establishing an electrical contact.
Copper solders are used in many areas of application as they are corrosion-resistant and very easy to mould. They also have good electrical and thermal conductivity
Due to their composition, active solders are able to wet non-metallic materials. Active solders achieve their wettability by adding active components such as titanium, zirconium or hafnium.
Vacuum brazing is primarily used when the solder material used would react with atmospheric gases or when the brazed product must be produced with high purity due to the application.
