Question

Oxygen to acetylene ratio in case of oxidising flame is

Answer 1

Oxidizing welding flames are produced when slightly more than one volume of oxygen is mixed with one volume of acetylene

Answer 2

hey,

Neutral Welding Flame. The neutral flame has a one-to-one ratio of acetylene and oxygen. It obtains additional oxygen from the air and provides complete combustion. It is generally preferred for welding.