Introduction: Making a Metal Melting Furnace
This metal furnace can melt aluminum, copper, gold, silver as well as other metals with a little lower melting point.
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another DIY by me:https://www.instructables.com/id/Homemade-REFLEX-DOT/
In case you wish to run this furnace on propane/methane:
Step 1: Make a Hole in the Edge of a Steel Bucket
Firstly you'll have to grab a steel bucket (the size depends on how big you want your furnace to be).Drill a hole on the edge of the bucket then using pliers make the hole large enough for an inch thick PVC pipe to pass through.
NOTE: here I used a PVC pipe and later on it turned out to be a mistake as the PVC pipe almost got stuck in the concrete and taking it out was then a problem.so it will be better if you use some thing that does not stick to the concrete, such as a steel pipe or something like that.
Step 2: Make Some Insulated Concrete
Take some cement and mix some gravel which should be about 3 times that of the cement also add some perlite or any other insulation as pure concrete explodes when heated.mix the mixture thoroughly and then add water to make the concrete.Also be sure not to add too much water to the concrete as then it will flow out of the hole drilled earlier.
Step 3: Fill the Sides of the Furnace With Concrete.
Place a small dust bin in the center and then introduce the PVC pipe from the hole at an angle(it should be angled because in case the crucible breaks down the metal would stay in the furnace rather than dangerously flowing out on to the floor).Begin filling by first filling the base then scotch taping the pipe to the dustbin and scotch taping the hole with the pipe through.when you have filled the concrete in this sides then let the furnace dry up for at least 48 hours.
Step 4: Making the Lid for the Furnace
Take a bucket and place a circular object in the middle of it.fill the sides with concrete and then pierce two semis-circular handles made of iron into the concrete Besides circular object.handles are not visible over here but you can watch them in my YouTube video.
Step 5: Finishing Up the Furnace
After the lid and the furnace have dried up now need to remove the dustbin, pipe and reclaim the lid out of the bucket.For removing the dustbin free it from the edges by using a chisel(over here I used an iron rod which had an end like a chisel).when the bucket is free from sides simply pull it out by using a plier.for reclaiming the lid over turn the bucket and strike the base of the bucket with your hands or a hammer.pluck out the circular object or strike it out with a hammer.Be careful when using a hammer.Remove the pipe by piercing the end with a hot screw driver then turning it and pulling it out.hammer the pipe in as then it will be easy to pull it out.
Step 6: FIRE Up the Furnace.
Step 7: Bonus Video/Music
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