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I Forge Iron

Nanafalke

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  • Gender
    Male
  • Location
    Germany
  • Interests
    Blacksmithing, 3D-Printing

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  1. First of all, thanks a lot for your explanations. The burner doesn't need to be run outside, I just did it for testing. It would probably be a good idea to put the burner in the forge and see how it performs. Sadly, I can't find those here in Germany. The only ones available are these tapered but not long ones. Not sure if they will work aswell. Best wishes
  2. So the flame retention nozzle is basically the flare? Or is there still a difference? I'm also not that happy with the current setup, if a long tapered tip doesn't improve the burner, I will just convert it to a T-Burner. Now I have to find those long mig tips, they are not that common here. Thanks a lot for your help Best wishes
  3. Thanks for your feedback. Actually, there are 3 videos and there is no picture of the flame. Maybe you refer to the preview image of one video? I searched for a 3/4" burner on hybridburners.com and found this. Is the part I marked referred to the flame retention nozzle? I properly mounted the propane supply with 6 screws now and tested again. Here are the results: If you can't see the vimeo videos, here are the links: https://vimeo.com/272741216 https://vimeo.com/272741527 Picture of the flame, 0.2 bars If the burner doesn't burn as hot as expected, I still can convert it to a t-burner. Just thought why not try building one with parts I already have at home. Best wishes Burner at night.mp4 Burner light.mp4
  4. Hey, I think I will take a few shots at night when I have time again, so the flame is more clearly visible. Best wishes
  5. Hey, after studying for some class tests, I finally had time again to work on the forge. I tested my burner in the forge and the flame seems to rotate pretty good: Sadly, my burner design doesn't burn hot enough as you can see here: So I replaced the 1mm nozzle from the gas torch with a 0.6mm mig tip and that already worked better. Then I removed the shroud and just put the nozzle in the pipe, fixed by two screws: That resulted in this flame: In the beginning it is burning at 0.2 bars (3 psi) and then I increase the pressure to 1 bars (14.5 psi). Do you think it is burning right in the last video? Thanks alot Best wishes
  6. Thanks a lot for your feedback I used [commercial link removed]. The website is in german, but to sum up, the cement is used in blast furnaces, able to withstand 1600 C (2912 F) and can store heat. The cement is recommended by many people from german blacksmithing forums, so I have high hopes that it will work as expected. Good to know, thanks . True, all images of forges I saw so far either put the burner in the middle or closer to the opening. I intentionally put the burner in the middle of the forge, but because I did reduce the size, the burner moved back in respect to the interior room, unintentionally. Thanks .Im planning to forge blades and tools (tongs), maybe axes one day, damascus steel would also be interesting. Yeah, definitly using a firebrick for the floor, especially when forging damascus. Going to take a look, thanks . I tried running my new burner, but sadly, it doesn't get enough oxygen. Probably have to enlarge the air intake. Best wishes
  7. Hey, a few weeks ago, I started building my first gas forge. I live in Germany and we got those 11kg propane tanks that make a good shell for the forge. For the isolation I use ceramic fibre and fire cement. Of course I used a respirator while working with the fibre. Here are some pictures: And a little stand: Yesterday I isolated the tank: I shaped the interior room oval, I read, that this shape has it's advantages in the Forges 101 thread. If I would build it again, I would probably have moved the burner hole a bit further to the opening, because I put more material in the backside. Now I let it dry 2 - 3 weeks and then I will weld two u-profiles to the front to be able to close the opening with a firebrick and two pipes to the side for a workpiece holder. Feedback is highly appreciated Best wishes
  8. I disassembled everything and cleaned up all pipes and holes. Now at 0.2 bars it works just fine. So there was something jamming. I also removed the valve because it broke while fastening the pipes. Interestingly, now it draws too much air, resulting in blowing the flame out. The airintake needs to be covered quite a lot for a stable burn. But calibrating the burner outside the forge would make no sense. Thanks for your help so far . Im going to build the forge out of a 11 kg (24lbs) propane tank with 2 layers 1" ceramic wool isolation and aprox 0.8" firecement. What do you guys use for regulating the pressure? At the moment, I have a pressure gauge from 0 to 1 bar (15 psi) installed at the burner and I regulate the pressure with a 2.5 bars (36 psi) pressure reducer simply by turning the valve of the tank. Are there better regulators where you don't have to mess with the valve of the propane tank and control it more easily? Best wishes
  9. Not yet, I still have to build it . The thread for the mig tip was leaking, that probably let more gas run into the pipe. So that probably lead to more gas in the combustion. Strangely, now I have to really crank the pressure up for a proper flame. Seems like something is jammed.
  10. Didn't know that just a little change could have an impact on the combustion. Thanks for the information. I have 9 more mig tips, will try them out tomorrow. If that doesn't help, I probably have to realign the pipe.
  11. Thanks alot for your help. I actually ran this burner at 0.2 bars before and it worked just fine, sadly I had to replace the 1/8" pipe with a new one, because the thread I cut in the pipe was bad and it didn't properly seal after a while anymore, even with ptfe. That the same burner doesn't work at 0.2 bars anymore confuses me. Video of the "old" burner:
  12. Hey, I just finished building my forge burner, it is based of Will Matthews Design and uses a 1/8" pipe and a 0.6 mig nozzle with a couple other fittings. Here are some pictures: Sadly, at 0.2 bar (2,90075psi) it is not burning well, makes a weird sound too. If I increase the pressure, it starts burning correctly. Video of it burning, first at 0.2 bar, then I increase the pressure and decrease it in the end: My theory is that it may be drawing too much air, but even if I cover the back of the bell reducer, the flame doesn't get better. Thanks alot! Best wishes
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