Propane Forge with simple flame thrower

sorry for the link. Did not make it happen with my smartphone

matfire1.jpg
 
Stacy E. Apelt - Bladesmith said:
Any high temperature refractory coating will work. Call a furnace company and ask what they carry or who they recommend as a supplier.
You want a "monolithic Refractory". That is a powder you mix with water to make a cement like mixture. It is sometimes referred to as "Castable refractory" or "Plastic refractory".
Many large hardware stores sell it in tubs for fireplace and furnace repair.

Others refractory brand names are :
ATP (ATP-641 is a populate refractory type )
Furnascote
Plibrico (they make plistix, which is like ITC-100)
Rutland's
Meeco
Hurcules
Red-Devil
Click to expand...

Did you forget Satanite?
 
Finally did it all over, took me a lot of time and have no more for making another
Hope this works. Tested it for about 15 minutes on a piece of metal (see video)

 
Yes, build a simple 1" (25mm) venturi burner from a few pieces of pipe and you will get a lot more heat. You are going to need a regulator, too.
 
have seen alot of diy burner videos but can not make it. Dont know the hardware needed size each.
Is there one very simple for dummies step by step ?
 
I think the two "non responses" are based on you wanting to make a forge and make knives, but won't/can't make a simple venturi burner.

There is nothing I can think of simpler than a venturi burner. It is a piece of 3/4" or 1" (20mm or 25mm) plumbing pipe and a couple fittings plus a 1/4 (6mm) valve and connection for the propane hose. It probably costs less than 30 Euro to make a burner. You might be able to It can be done with very simple welding or no special tools ( a pipe wrench and a drill). If you can tap a hole ( or get it tapped by a friend) using a MIG tip (#30) makes it even simpler.
Some of the stuff from your weed burner can be used.​
Any regulator that delivers 15PSI or more will work. A welding gas regulator will do fine. The fitting is the same as acetylene. A BBQ regulator usually won't work, as it won't deliver enough propane to run a burner.

You can buy also burners that are guaranteed to work almost everywhere. There are kits and finished from places like HighTempToolsandRefractory.com and really low priced burners from Atlas Knife and Tool company - http://www.atlasknife.com/.
Many of these folks will ship overseas. I am sure there are other sources in Europe. I would look at some of the European knife supply companies.

Do some searches and look at some videos. I am sure it will make sense.
 
Burners are quite simple in theory. Anyone with a reasonable grasp of the theory can build and tune a burner quite easily.

The big difficulty is that very few people have any real understanding of the theory, mainly because it is not something many people encounter in everyday life. The theory is also only "quite" simple. There are actually several simple things going on at the same time and these interact in interesting ways.

There are basically 3 ways of arriving at an effective burner. The first is to research the theory until it becomes obvious what you need to do and what effect each little change will have on everything else. The second is to leap blindly in and blunder about in the hope that luck will intervene and provide you with a working burner. The third is to bypass all the difficult stuff and use an existing design that is proven to work in your application.

Most people adopt the third option, either by buying a burner, or by building to a set of plans.

Because small changes can make a big difference, building to plans involves *EXACTLY* replicating the original. Any change, however insignificant it may seem to someone who does not fully understand the theory, makes it a different design to the original and means that you are almost certainly adopting the second method, albeit unintentionally.

Most of the documented designs on the web use US standard pipe fittings. Many of these are effectively unavailable in Europe, where we use different pipe threads.

The "best" approach in the OP's case may be to buy a burner. This may seem like the expensive option, but building one can often include drilling and tapping odd sizes and once the cost of the drills and taps is factored in, buying a burner can actually be the cheapest option.

The OP's 2 best options for burners are probably a Devil Forge DF-series (not the DF-Prof-series), available on Ebay from Lithuania, or the Amal atmospheric injector available from the manufacturer (Burlen) in the UK. I usually use the Amal (the factory jetting for Butane actually gives better results on "our" application when running on Propane than the factory jetting for Propane does, IME), but I bought a DFP just to see if it was any good and was pretty impressed by the performance and controllability.

If you are going to build your own burner, bear in mind that a blown burner (usually) has all of the adjustments available to the user with the forge running and therefore tends to be easier to tune once it is built than a Naturally-Aspirated burner. A Naturally-Aspirated burner often needs much/most of the tuning to be done at the assembly stage: test-run, shut down, let it cool, partially dismantle the burner, make the modification, reassemble, fire it up, wait for it to reach stable temperature, see if it does what you need it to do. If it doesn't, repeat until it does. A good, progressive choke on a NA burner can put a lot of the adjustment at the users fingertips, dramatically reducing the need for tuning at the assembly stage. Both the DFP and the Amal have very finely-adjustable, progressive chokes. Few of the documented self-build designs do.
 
Here's the video on my burner. There isn't an easier burner design or one that uses fewer parts. A single weld and drill one/two tiny holes.

 
Stacy E. Apelt - Bladesmith said:
I think the two "non responses" are based on you wanting to make a forge and make knives, but won't/can't make a simple venturi burner.

There is nothing I can think of simpler than a venturi burner. It is a piece of 3/4" or 1" (20mm or 25mm) plumbing pipe and a couple fittings plus a 1/4 (6mm) valve and connection for the propane hose. It probably costs less than 30 Euro to make a burner. You might be able to It can be done with very simple welding or no special tools ( a pipe wrench and a drill). If you can tap a hole ( or get it tapped by a friend) using a MIG tip (#30) makes it even simpler.
Some of the stuff from your weed burner can be used.​
Any regulator that delivers 15PSI or more will work. A welding gas regulator will do fine. The fitting is the same as acetylene. A BBQ regulator usually won't work, as it won't deliver enough propane to run a burner.

You can buy also burners that are guaranteed to work almost everywhere. There are kits and finished from places like HighTempToolsandRefractory.com and really low priced burners from Atlas Knife and Tool company - http://www.atlasknife.com/.
Many of these folks will ship overseas. I am sure there are other sources in Europe. I would look at some of the European knife supply companies.

Do some searches and look at some videos. I am sure it will make sense.
Click to expand...


Sorry for causing any inconvenience to anybody about this forge burner question of mine.
Have very little used, worked in my entire life with this kind of parts so that makes me a "confused beginner"
Again Sorry.

If you make knives for a hobby like i do it is not necessary to know how to make a burner.
Just want to learn and do it myself if possible
Eventually if i don't make this happen i will buy one some company makes


will try to gather the parts and make the below burner.
Seams to me the easiest one. What do you think about it ?
I think it will do the job with my "extinguisher" forge

 
Josh Rider said:
I was going to recommend an atlas burner, but realized it was going to be more difficult to purchase overseas.
Click to expand...

Thank you alot for the recommendation but as you already said shipping overseas is not an option for us especially nowadays with this madness of the Greek customs opening the packages and charging crazy taxes
I would definitely buy one if i was in the USA
 

tested the new forge
Video link is at heat treat time. It took me about 10 min or more to heat this blade
 
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