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What are two characteristics of a neutral flame when gas welding?
Wiki User
∙ 12y ago
#1 there will only be 2 visible flames, the inner cone and the outer envelope. #2 the flame will be soft (quiet) #3 the inner cone will be well defined and fat.
Wiki User
∙ 12y ago
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What types of flame are obtained in oxy-acetylene gas welding?
When the correct amount of Oxygen is mixed with the Acetylene a NEUTRAL flame is produced. Less than that amount produces a CARBURIZING flame. Too much Oxygen creates an OXIDIZING flame. Most welding/cutting is done with a NEUTRAL flame but all flame adjustments have their purpose.
Which gas welding flame is the hottest?
It's called a Neutral flame. Enough Oxygen is added to the fuel to allow almost complete combustion. The remaing fuel is combined with the surrounding air and burned. This is the best flame for most cutting and welding operations. Too little Oxygen produces a Carburizing flame. It is yellow and produces smoke. A slightly Carburizing flame is used when welding Aluminum. Too much Oxygen produces an Oxidizing flame. It begins to sound louder and the inner flame comes to a point.
What is the gas for welding?
Oxygen and acetylene for flame welding. Argon for Tig welding CO2 for MIG welding steels Argon for MIG welding aluminum TRI-mix for robotic mig of steels. And helium is added for some overhead welding.
How hot is gas flame when welding?
When the fuel is used with oxygen, flame temperatures can range from 4500 to 5600 degrees Fahrenheit, depending on the fuel used. (2500 - 3100 degrees Celsius)
Why for welding use oxygen and acetylene?
Because of all the gas combinations used with this process Oxygen and Acetylene, in correct proportions, produce the highest flame temperature.
What types of flame are obtained in oxy-acetylene gas welding?
When the correct amount of Oxygen is mixed with the Acetylene a NEUTRAL flame is produced. Less than that amount produces a CARBURIZING flame. Too much Oxygen creates an OXIDIZING flame. Most welding/cutting is done with a NEUTRAL flame but all flame adjustments have their purpose.
Which gas welding flame is the hottest?
It's called a Neutral flame. Enough Oxygen is added to the fuel to allow almost complete combustion. The remaing fuel is combined with the surrounding air and burned. This is the best flame for most cutting and welding operations. Too little Oxygen produces a Carburizing flame. It is yellow and produces smoke. A slightly Carburizing flame is used when welding Aluminum. Too much Oxygen produces an Oxidizing flame. It begins to sound louder and the inner flame comes to a point.
What are the enviornments of welding?
The environments of welding could be one of the following:- open air- outer space- under waterthese different environments need different energy sources like gas flame, an electric arc, gas flame or laser.
What is the gas for welding?
Oxygen and acetylene for flame welding. Argon for Tig welding CO2 for MIG welding steels Argon for MIG welding aluminum TRI-mix for robotic mig of steels. And helium is added for some overhead welding.
What are facts about welding?
# If you look into the flame you'll go blind, # if you touch the flame it will burn you, # your face is always hotter than your buttocks, # a cigarette always tastes better when lit by a torch flame, # always weld with a full gas tank, # you can get a tan/sunburn from welding, and # welding is fun when you weld random items together.
What is the function of the needle valves on a welding torch?
To adjust gas flow therefore adjusting flame intensity.
Which gases are used in gas welding?
In most applications Oxygen and Acetylene. Newer gasses have been developed that are cheaper than Acetylene but us old timers still prefer to use it. It produces a slightly higher temperature and can be used to blacken Aluminum. By doing this then heating with a neutral flame the black disappears when the correct preheat temp. is reached. At this point it is also at the correct tempering temp. Weld with a slightly Carburizing flame (less Oxygen than a neutral flame).
How hot is gas flame when welding?
When the fuel is used with oxygen, flame temperatures can range from 4500 to 5600 degrees Fahrenheit, depending on the fuel used. (2500 - 3100 degrees Celsius)
What gas is used in welding cylinders?
Welding cylinders contains different types of gas. Oxygen is common to all the kinds of cwelding. The other common gas used is a combustible gas like acetylene which is the fuel for the torch. The fuel gas could also be hydrogen, MPS or MAPP gas, butane, propane, or propylene. Some welding (e.g. aluminum welding) requires a shield gas which protects the surfaces near the flame and improves the quality of the weld. These can include helium, argon, carbon dioxide or nitrogen.
What is Limitation of gas welding?
what are gas welding limitation
What does argon gas do to a flame?
Argon gas cannot react with most substances, and can extinguish a flame if it displaces enough of the oxygen around the burning material. Argon is used as an inert gas in electric arc welding to prevent oxygen from reacting with the heated materials, such as aluminum and titanium.
Which gas burns the hottest when cutting torch is used?
oxygen supports the combustion of the gas that one uses in the welding/cutting torch. Acetylene combined with Oxygen produces the hottest flame.
