ChrisB Posted November 18, 2009 Share Posted November 18, 2009 Getting a bit more scaling on my work in the gas forge that I care to have. I'm wondering if there are hints on how to limit scaling in a gas forge. Running a Don Fogg style "blown" burner. Thanks Chris Quote Link to comment Share on other sites More sharing options...
bigfootnampa Posted November 18, 2009 Share Posted November 18, 2009 More scale is the norm for gas forges (vs coal). A lot of bladesmiths use a flux to minimize it. "Firescoff" is one such product. You might find it useful. Quote Link to comment Share on other sites More sharing options...
looper567 Posted November 18, 2009 Share Posted November 18, 2009 I'm not familiar with Don's burner but I assume it has some type of "choke" for the air intake. Try choking down the opening on the blower a little at a time while leaving your gas pressure alone. It sounds as if you have a "lean" mixture (too much air for the fuel being used). This is where a gate valve works really well as it gives you much more control over your Air/Fuel mixture. The more unburned oxygen present in the forge, the more scaling you will notice. When you make adjustments to your fuel pressure you will need to keep this in mind also. Another thing I have noticed is some of the A36 steels being sold now have a tendency to scale more than usual. I would imagine that is a result of bad chemistry in the material, as A36 uses alot of recycled stuff, with a unknown history. Quote Link to comment Share on other sites More sharing options...
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