Which one of the following is not a function of a flux in brazing or soldering:
A)chemically etch the surfaces to increase roughness for better adhesion of the filler metal
B)promote wetting of the surfaces
C)protect the faying surfaces during the process
D)remove or inhibit formation of oxide films

Question

Quizplus · Accepted Answer

Flux in brazing or soldering primarily serves to promote wetting of the surfaces, protect the faying surfaces during the process, and remove or inhibit the formation of oxide films. It does not chemically etch the surfaces to increase roughness for better adhesion of the filler metal; instead, its role is to clean and shield the surfaces to ensure a good bond.

Which One of the Following Is Not a Function of a Flux