25Brandon25 Posted January 19, 2023 Report Share Posted January 19, 2023 I am a beginner and I own a devil forge for black smithing and melting metal etc Could I use this which has a blowtorch which vortexes around the chamber providing relatively even heat to melt pottery glaze? Quote Link to comment Share on other sites More sharing options...
Pres Posted January 19, 2023 Report Share Posted January 19, 2023 The thing with pottery is the glaze firing takes time to reach @1000F. which is the quartz inversion from alpha to beta quartz afterwards a faster but steady fire to glaze temps around 2000F. for stoneware. My limited experience with forges to melt/anneal or other work with metals would tell me nix on using it with glaze firing pottery. All IMHO but the best I have. best, Pres Quote Link to comment Share on other sites More sharing options...
Mark C. Posted January 19, 2023 Report Share Posted January 19, 2023 A forge is all about hot NOW and clay is all about hot slowly as Pres said. You would need a pyrometerm for heat data and some way to go very slowy other wise your wares can crack. theoretically its possible but not likely . Quote Link to comment Share on other sites More sharing options...
neilestrick Posted January 19, 2023 Report Share Posted January 19, 2023 I don't now anything about heating metal, but with clay you need to be able to increase the temperature slowly or you'll crack or blow up the pieces depending on what type of firing you're doing. Looking at that picture, it seems like the torch will be blasting directly onto the pot, which would not be good. Quote Link to comment Share on other sites More sharing options...
Mark C. Posted January 19, 2023 Report Share Posted January 19, 2023 (edited) There is a learning lesson ready to happen.I think the devil in you says give it a try. PS wear glasses for protection Edited January 20, 2023 by Mark C. Rae Reich, Pres, Magnolia Mud Research and 1 other 4 Quote Link to comment Share on other sites More sharing options...
Bill Kielb Posted January 19, 2023 Report Share Posted January 19, 2023 (edited) Not ideal for sure and slowing things down is a necessity as well as indirect heat. (No blasting flames on the pot) Bisque firings take let’s say 8-10 hours so the math there says 200 f per hour or less I think Glaze firings take let’s say 6-8 hours so again not more than 250f per hour. Thats a lot of minor gas adjustments. Might be doable for a one off - likely a pain to go that slow. Edited January 19, 2023 by Bill Kielb Quote Link to comment Share on other sites More sharing options...
oldlady Posted January 19, 2023 Report Share Posted January 19, 2023 it appears from his location that brandon may be in the UK. Pres 1 Quote Link to comment Share on other sites More sharing options...
Kelly in AK Posted January 19, 2023 Report Share Posted January 19, 2023 If your work is small I suppose it may heat evenly enough to work. It doesn’t look so different than a very tiny raku kiln. Without getting into specifics, if it gets to glowing bright orange hot it’ll melt glaze. Rae Reich and Magnolia Mud Research 2 Quote Link to comment Share on other sites More sharing options...
High Bridge Pottery Posted January 20, 2023 Report Share Posted January 20, 2023 You can certainly melt glazes in there as the flux used to recover precious metals is like 75% Soda Ash and 25% silica sand, a very basic glaze to dissolve all the sulphides. Not sure the clay would survive unless it is already bisque fired slowly in another kiln. Quote Link to comment Share on other sites More sharing options...
Chilly Posted January 20, 2023 Report Share Posted January 20, 2023 On 1/19/2023 at 12:32 AM, 25Brandon25 said: melt pottery glaze Yes. But just because you can, doesn't mean you should. As all comments above, too hot too fast. Not "too hot", toohot toofast. Quote Link to comment Share on other sites More sharing options...
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