General Knowledge - General Science - Discussion

Oxy-fuel welding (commonly called oxyacetylene welding, oxy welding, or gas welding in the U.S.) and oxy-fuel cutting are processes that use fuel gases and oxygen to weld and cut metals, respectively. French engineers Edmond Fouché and Charles Picard became the first to develop oxygen-acetylene welding in 1903. Pure oxygen, instead of air (20% oxygen/80% nitrogen), is used to increase the flame temperature to allow localized melting of the workpiece material (e.g. steel) in a room environment. A common propane/air flame burns at about 3,630 °F (2,000 °C), a propane/oxygen flame burns at about 4,530 °F (2,500 °C), and an acetylene/oxygen flame burns at about 6,330 °F (3,500 °C).

It is also called as oxyacetylene gas and has ability to create very high temperature.

Acetylene is a alkynne (CH-=CH). It is a gas.

What is acetylene?

In welding we use oxygen and acetylene because acetylene provides a comparatively higher temperature.

Argon is used to provide a inert atmosphere surrounding the welding.

I'm agree with vishal now-a-days argon gas is used in industries

Oxy-hydrogen is also suitable for welding because it is 2800 celsius and oxy-acetylene flame is 3300 celsius.

In welding process we will use three methods.

1. Thermal welding.

2. Electric arc welding.

3. Gas welding.

In gas welding the most widely used method is OXY-ACETYLENE welding.

After reaction between 02 and C2H2 the Oxyacetyline flame is produced.Which can produced the temperature approx 2500-3000 degree.