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Found 12 results

  1. Hello, I built myself a venturi burner for a small heat treating forge and after many online readings, I was able to make a starter propane forge. I took a lot of precaution to make sure that there is no leak (gasline teflon + soapy water test multiple times) and everything seems good. However, since I am using a highly flammable gas, I want to learn as much of the process before firing the propane burner for a first heat treatment cycle for safety reasons. One subject that I haven't found about is how the burner should normally behave when I cut off the gas. So my question is:
  2. I'm in the process of building my first venturi forge. It'll be a simple forge based off of Michael Porter's book. The main question I have is one I can't seem to find an answer to. I read LP rated teflon tape is a no-no for pressurized gas lines. So properly rated dope paste is what I hear some people use. My question about that is do you use pipe dope on your lines? If so, do you use pipe dope on your high pressure regulator, the line coming from it, the pressure gauge on the regulator, the quick shut off valve, and the backside of your burner where the line connects? I assume the last gets
  3. Forgehermet

    Burners

    In my previous post I learned that my oddball burners probably would not get hot enough for a forge so now I am wondering what the cheapest burner design that runs on propane is. My forge is 28"x8"x8", and I would also like to know how many burners I should have in my new forges construction.
  4. Will this concept work? I plan on using waste oil, rotary drum pump, 1/2" tubing, and a brass mister head, along with a conventional propane burner Venturi body.
  5. Started working on my forge's twin burners this week. So far, everything is turning out great. I have not tested this design yet, but plan to do so soon. I started off by taking a close look at my TurboTorch tips that I use at work (Acetylene gas). Here's a picture of the TurboTorch tip (A11). I too extra notes on the brass section of the torch tip, where the gas begins to mix with air. The gas flows from the regulator into a small chamber, with a very tiny hole machined in it. This little hole sits just before the air intake, which is proportion
  6. Hey guys. Sooooo I decided to just go ahead and buy a ready-made forge to speed the learning process along. Got it in the mail today. It seems pretty sturdy, the main tube did get a little bent in transit, but nothing I couldn't mostly fix or deal with. The burner it comes with seems pretty straightforward, not sure what design it's based off of, but it looks serviceable. The major issue I have at the moment is that, while it does come with a regulator and hose for connecting a propane tank, the regulator is designed for some strange European standard and I need two absurdly specific little
  7. Hello all. As I find more of my forge time devoted to playing with Damascus and making billets, I’m not liking the fact that I’m heating up 1413 cubic inches of space for approx. 36 cubic inches of material. So I’ve decided I’ve got too much time on my hands and I need another project. I want to make a dedicated, small forge-welding forge. Here’re my options: 1.) Complete my original plan with my current forge (an 18″ length of 14″ diameter 1/4″ steel pipe with 2″ castable refractory for insulation and a 4″x10″ ribbon burner) and cast removable inserts out of Greencast to both shrink the
  8. Over the time I have been visiting this forge I have seen a lot of people come through and ask about all sorts of designs of forges. Most of the people posting such threads are actually new to using a gas forge and often new to smithing. I have advised many of these newer smiths to first build a brick pile forge, use that a while and then go to something more serious once you figure out how big you will need. So now I wanted to make a definitive post as a guide for these people. The forge will have an internal size of 9" x 4.5" x 6.5", or 263 cubic inches. It is, however, easily reconfigured
  9. A good while back, I was playing around with some burners and built a quick-and-dirty test forge from IFBs. It was used to test a 1" burner based on an Amal atmospheric injector (a British commercially-made Venturi mixer. Amal were once a big name in motorcycle carburettors). The intention was to get it to run over a range of temperatures all the way from heat-treating to welding. I showed it to some of the guys from the BritishBlades forum at a hammerin and one asked if they made smaller injectors. The 1" had seemed quite small to me, as I'm used to using the 2" ones at work, but he knows wha
  10. I have seen mention of smaller-than-3/4" burners a few times now and when I have some spare time, want to bench race a couple ideas. The question I have, however is just how small can you go and actually have a workable flame i.e. how small can you go with the naturally aspirated theory before the tube size to molecule size begins to break down. I see it a lot on miniature water scenes especially in old movies b4 cgi came along. A miniature battle ship just doesn't float the same way a full sized one does due to the size of the model to the size of water molecules. I guess the best term would
  11. Hello everyone, this is my first post on I Forge Iron! Thank you for all the hard work you do both maintaining the site, and responding to questions. It's a relief to a newbie like me to be able to get answers from pros who've been there, rather than guesswork. My question is, are there any gas forges that you would recommend? I don't have any welding experience yet, so I can't make one. I was looking at the Whisper Momma but before I took the plunge, I wanted your input on if there is something better out there, or more suiting, if you're willing. My main focus in blacksmithin
  12. Hey guys hope you all having a good day today, well for starters im Michael or as my friends call me The Savage. Ive only done about a year at a blacksmith school and enjoyed it alot but after mucking around with knives i have realized my talents and interest lye more towards the bladesmithing side and have made 15 or so knives in my old coal forge. Its become too difficult to find resources for coal in my area as i moved right into town and solid fuel isnt really allowed so i descided on the gas forge route. So to make a long and time wasting story short ive made the forge and its completely
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