To Ignite a Flame
Open the acetylene control valve of the welding torch and after the system has been flushed to clean the torch nozzle the gas is ignited. At this stage enough oxygen is drawn in from the atmosphere to burn acetylene partially.
The acetylene control valve is then adjusted until the flame ceases to smoke. The oxygen control valve of the welding torch is then opened in order to adjust the proportion in which acetylene and oxygen are required to mix and burn.
Types of Flame:
fig-1
fig-2
1-Neutral flame (Acetylene Oxygen in equal proportions)
2-Oxidising flame (Excess of Oxygen)
3-Reducing flame (Excess of Acetylene)
In oxy-acetylene welding flame is the most important tool.All the welding equipment simply serves to maintain and control the flame.The correct type of flame is essential for the production of satisfactory welds.
The flame must be of proper size,shape and condition in order to operate with maximum efficiency.
Open the acetylene control valve of the welding torch and after the system has been flushed to clean the torch nozzle the gas is ignited. At this stage enough oxygen is drawn in from the atmosphere to burn acetylene partially.
The acetylene control valve is then adjusted until the flame ceases to smoke. The oxygen control valve of the welding torch is then opened in order to adjust the proportion in which acetylene and oxygen are required to mix and burn.
Types of Flame:
fig-1
1-Neutral flame (Acetylene Oxygen in equal proportions)
2-Oxidising flame (Excess of Oxygen)
3-Reducing flame (Excess of Acetylene)
In oxy-acetylene welding flame is the most important tool.All the welding equipment simply serves to maintain and control the flame.The correct type of flame is essential for the production of satisfactory welds.
The flame must be of proper size,shape and condition in order to operate with maximum efficiency.
Electric arc consists of a glare of intense heat which is produced as the electric current through by a highly resistant air gap. Navigate to this website
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