The following parts of the welding machine:-
#1. Cylinders
Two types of gas are kept under pressure in two different steel cylinders. This cylinder should always be used safely in an uprights position. When the cylinder is not used, the cylinder must be covered with a valve cap.
#2. Pressure Regulators
For welding, oxygen and acetylene are required at low pressures, but in cylinders, they are filled at high pressures. Therefore a pressure regulator is required to control the pressure of oxygen and acetylene before reaching the mixing chamber.
#3. Torches
The torch has a handle oxygen and fuel gas valve and mixing chamber. Inside the handle, there are tubes throughs which oxygen and fuel gas flow.
#4. Mixing Chamber
Oxygen & fuel gas are mixed in this chamber. In this mixings chamber, the ratio of oxygen & fuel gas is mixed according to the required type of flame. There are three types of flame neutralizing, oxidizing, or carburizing used in welding.