What is an Oxy/Fuel Ratio in Welding?

The oxy/fuel ratio is the relationship of cu. ft. of oxygen to cu. ft. of fuel gas mixture necessary to achieve maximum flame temperature. This ratio varies with fuel characteristics such as natural gas, propane, or butane.

What is oxy-fuel welding used for?

The oxy/fuel mixture is burned in the torch, and the resulting heat is used to weld metals together. The oxygen helps to create a hot, focused flame that can reach temperatures of up to 6,000 degrees Fahrenheit.

The fuel gas mixture is fed into the torch through a regulator, which controls the flow of gas. The oxygen and fuel gas mix in the torch tip, where they are ignited by a sparker or igniter.

What is the best ratio for oxygen and acetylene?

The most common mixture for oxyfuel welding is two-part oxygen to one-part acetylene.

What is the best ratio for oxygen and acetylene?

The flame can be adjusted by changing the oxygen to fuel gas ratio. Higher oxygen to fuel gas ratio will create a hotter, more powerful flame. A lower oxygen-to-fuel gas ratio will create a cooler, less powerful flame.

How do you weld with oxy-fuel?

Welding with oxy-fuel is a relatively simple process. The first step is to set up the equipment, which includes:

  • an oxy-fuel torch,
  • a fuel gas tank,
  • and an oxygen tank.

Next, the proper mixture of oxygen and fuel gas is determined based on the specific application.

Oxy acetylene welding

It is accomplished by directing the oxygen and fuel gas mixture through a torch tip, where it is ignited by a sparker or igniter. The heat from the flame is then used to weld the metals together.

Related Links

Oxyfuel Cutting – Process and Fuel Gases – TWI
oxy/acetylene ratio
Oxy-fuel welding and cutting

Related Videos