In various burners, oxidation flame is the fire produced by excessive amounts of oxygen. As the amount of oxygen increases, the fire shortens, the color darkens, and it hisses and roars. With some exceptions (eg, platinum soldering in jewelry), the oxidant flame is usually undesirable for welding and soldering, because, as the name implies, it oxidises the metal surface. The same principle is important in shooting pottery - see Reducing the atmosphere.
fire reduction is a flame with low oxygen. It has a yellow or yellowish color because of the carbon or hydrocarbon binding (or reducing ) of oxygen contained in the material processed by a flame. Reducing fire is also called flame carburetor , as it tends to incorporate carbon into the molten metal.
neutral flame is a flame in which the amount of oxygen is sufficient for combustion, and neither oxidation nor reduction occurs. Fire with good oxygen balance is clear blue.
Reduction and neutral fire is useful in soldering and annealing.
Video Oxidizing and reducing flames
See also
- Oxy-fuel welding and cutting Ã,§Ã, Type of flame for more details on the above fire type on oxy-fuel burner
- Oxidize
- Redox
Maps Oxidizing and reducing flames
References
Source of the article : Wikipedia
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