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I Forge Iron

GateKeeper

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  • Gender
    Male
  • Location
    Alexander Bay - South Africa
  • Interests
    Diving, knife making, blacksmithing, diy and outdoors.
  1. Good day all I also recently finished my build on my forge and to be honest I should have just bought one and then later build one then I could have something to reference it against. Frosty gave me some advice on changing the piping I.E. removing some of the 90 bends to increase air velocity. After changing this I could immediately see a huge difference in the flames and the temps I was getting out of my ribbon burner. Here is the little I have learned and those reading that have more knowledge can indicate whether I am right: 1. The more heat you need the more gas you need to deliver to the forge. 2. The more gas you introduce the more air is needed to burn the gas. 3. So increase in gas = increase in air supply 4. If the flame blows out to little gas or to much air. As Frosty mentioned you don't really need a huge amount of air and that is what I realized as well. I currently have my forge running with less air than a small hair dryer produces. It gets hot enough to forge and HT but if I need to start forge welding and making demascus I will definitely need to get a larger blower but not by much. I am not saying that a big blower will not work and that it will not heat up your forge at the speed of light my question is that am I not in the process 1 have an uneven forge heat with hot spots or using more fuel than necessary. I am new to forging and black smithing and forges hammers anvils and all the rest. So take this post with a pinch of salt as well. I have had the forge pop once after running the forge for about an hour where after I switched it off. After thinking about this for a while I came to the conclusion that as the burner block starts heating up it eventually gets hot to a point where the hot surface of the burner block on the inside of the burner is hot enough to ignite the gas mix inside which caused the gunshot and and a extremely loud curse word and some unnecessary fowled underwear. Is this conclusion correct? Not the underwear but the reason for the pop, and will an increase in airflow mean that the burner block will run cooler? One thing I am still trying to figure out is the surface area of holes in ribbon burner to the size of air pipe. I would also like to thank the forum and Frosty for the help up to this point. Everything he has said was spot on.
  2. Hi thanks for the reply Frosty I have been out for the last two days, hurt my back moving a piano.... Funny I barely touched the darn thing... Looked at it planned the move bent over and boom... Anyway. I will be following your advice and applying the changes that you recommended. It does make sense that that the additional turn I have might be slowing down the flow of air fuel mix. Thinking on what you said regarding the entry point of the air fuel mix on the burner block itself (Top vs. side) producing a better distribution of flame I definitely made a mistake by the type of baffle I placed in the plenum because I understood the baffle to be more of a mixing device than a spreading device. I suppose it needs to do both, but if you ensure a good mix before getting to the burner block the only function for the baffle would then be to spread the mixture evenly to the whole burner. When thinking of it like this a baffle is not just a plate full of holes... The idea of building another burner assembly actually is kind of exiting. I know I still have a lot to learn but the only way to learn is to make mistakes... I am not offended at all by the previous post. It's all good... I have a bit of a thick skin.... I tend to apologize easily and avoid arguments that way we can carry on with business... Will apply corrections to forge and post back with results . Regards
  3. I apologize for barging in not reading everything as I probably should have. (I read it now...) Also I would like to apologize for using the wrong terminology. For some reason I got it mixed up. I have done many hours of research not only on YouTube but also reading forums and info on other sites. Part of my poor forum etiquette is due to the reason that I tend to not want to ask questions alot. I read, search, read, search. If I run into something I don't understand I will search some more and read some more. One thing that I have learnt is that there is a huge difference in knowing something and actually doing something. You might have all the info stuffed in your brain but as soon as you actually try to apply it.... That's when you realize how little you actually know. Therefore when I started my forge build I went in knowing that I would probably make some mistakes and that was OK I just need to ensure I Don, t kill myself in the process. Thanks for reading and commenting anyhow. I know that I will probably ask alot of questions and get hit over the head with a comment or to in the process. As for my current problem.... I am curious as to why not all the flames on the ribbon burner are not burning. That is my only concern at this stage. I am starting to question alot of the things I did while building the forge and just need someone to objectively look at what I did and spot potential issues. I Don't want to change things that is not actually a problem. Here are pics of the forge outside. I know the blower might be a bit small so I will get a better one. Although I do question the huge blowers that I see some have. I might be wrong there as I have no experience to back it up. Thank you for all your help. I really do not have any means of getting to a blacksmith at this stage. Lock down and my remoteness comes into play. I stay almost 500 miles from the closest blacksmiths.
  4. Good day all. I am not sure if I am allowed to jump in here on this thread but I have some issues with a forge that I built. This is my first forge and ontop of that I decided I wanted to do a ribbon burner, although I am kind of regretting it now So just to get jou updated on what I have done so far. The forge was lined with ceramic blanket 3 layers of 1 inch each and then covered with approx 1/4" refractory. The mesurement for inside of forge is now 16" long and 7.5" diameter (cylindrical shape with flat bottom). Volume calculates to approx. 650cu. The burner body is 4" x 8" and I have 23 holes of 5/16 spaced accordingly in a 3 then 2 pattern. There is a baffle plate in the plenum of burner. The piping for the burner is 1 1/2 " and you can check my configuration in the photo. Gas is supplied with a high pressure regulator and is controlled by a needle valve. Gas is injected into system via a diy injector made up from a piece of pipe blanked off in front and then 3 holes drilled around it. Diameter of holes are 5/64. The blower is a squirrel cage type. It is probably a bit small but I did hook up a variable speed leaf blower with same problem although a lot better heat. So the problem is that I do not get the flames to burn on all of the holes in the burner block. I checked and all holes are open. I played with the gas air mix quite a bit. I can get both rich and carburising flames. There is no popping or Bach burning. Everything looks good. I would have thought that forge would heat up sooner and that it would get hotter. I ran the forge as hot as I could for about 15min and although the forge got nice and hot and I am sure that I would be able to heat treat and forge with it, I was hoping that I would be able to forge weld at a later stage as well. I am poking around in the dark here so any pointers and advice would be appreciated. Heck maybe I just nedd to run it a bit longer or something I don't know. One thing that I am concerned about is that I might have drilled the holes in the mixing plate in the plenum a bit big. So instead of some of the gas going around the plate it can now gow streight through. And also do I have to many holes in the burner block? Regards From lock down in South Africa
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