Fluxless Soldering
Flux-free brazing is an environmentally friendly process that works without chemical fluxes by using shielding gases, high vacuum, or plasma. It avoids residue formation.
Physicochemical Mechanism of Action
Flux-free soldering uses special shielding gases such as argon or helium to protect the metal surface and carry out the soldering process in an enclosed system. Alternatively, it can be done in high vacuum or via plasma without flux. This prevents the formation of dirt or contamination products on the surface.
Metallurgical Relevance & Risks in Soldering
Without chemical fluxes, fewer residues and contaminants occur, leading to a cleaner solder zone. This reduces the likelihood of contact opening and improves electrical insulation. However, the process can be more complicated and may require more precise control of the environment.
Workshop Practice & Instructions
For flux-free soldering, use special shielding gases or do the process in high vacuum. Make sure the solder zone is clean and free of contaminants. Watch for proper temperature control and precise timing of the process.