Posted by LarryT on January 03, 2011 at 16:48:25 from (68.35.57.27):
In Reply to: Parts of a Torch Flame! posted by Murray Hebblethwaite on January 03, 2011 at 15:39:44:
Sorry 135fan but your wrong this time. There are 3 flame types . Neutral, Oxidizing, and Carbonizing flames. The flame on a cutting torch is an Oxidizing flame and the center orifice blows additional oxygen to both oxidize and blow out the molten material. The three flames of the welding torch are used for different types of welding and brazing on different base materials. For instance if your going to braze steel or iron you use s carbonizing flame which is a soft flame with just a feather of light blue around it.If it had orange your just a tad too rich. This gives you a more even heat throughout the material and the extra gas acts like an inert and reduces the oxygenation of the molten brass as it makes the molecular bond with the Ferris base. It also allows a slower cooling of the base therefore reducing possible distortion and cracking of cast pieces. The neutral flame is used for precise welding of materials and restricts the heat spread through the peace thus reducing again the potential for distortion. The oxidizing flame actually has almost no use other than cutting. I have used it to carefully remove sloppy braising or clean off other contaminates from surfaces. Hope this helps. LarryT
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