Answer
Nov 18, 2025 - 11:18 AM
For brazing, the torch should be set to a neutral flame, where the ratio of oxygen and fuel gas (such as acetylene) produces a balanced, clean flame without excess oxygen or fuel. This setting ensures efficient heating without oxidizing the metal or the filler material. Adjust the flame so the inner cone is well-defined and there is no hissing or excessive soot.
