Most Commonly used Flame in Gas Welding
Most common metals, such as mild steel, cast iron, stainless steel, copper, and aluminum, are welded using a neutral flame. Oxygen in excess creates an oxidizing flame. It is solely beneficial for controlling zinc burning when welding brass.
Carburizing flame (Excess Acetylene flame) (Maximum temperature is about 3040°C):
- It is utilized in non-ferrous metals that do not frequently absorb carbon, low alloy steel, a high carbon steel
- Aluminum, nickel, and other non-ferrous metals are all-welded using this flame.
- Additionally, it is utilized for hard-facing steels using satellite rods.
Oxidizing Flame (Excess Oxygen flame) (Maximum temperature is about 3315°C)
- It is utilized while welding copper, some copper-based alloys, and zinc-based materials.
The most commonly used flame in gas welding is (A) Neutral, (B) Oxidising, (C) Carburising - Choose the Correct Answer: (1) Only A, (2) Only B, (3) Only C, (4) Only A and B
In gas welding, neutral flames are most frequently employed. Acetylene is present in excess in a carburizing flame. It is ideal for starliting (hard facing). Therefore, in gas welding, the neutral flame is most frequently utilized.