Tuesday, April 11, 2017

"Hothead" Dual Fuel Metal Melter (Part 1)

I built this furnace in the summer of 2016. I had built a small electric furnace when I was much younger and did a bit of casting, I loved the process and have always wanted to get back to doing some more casting.

This furnace is a Dave Gingery style furnace because it is built in three parts, the top and middle section lift out of the way when you are ready to pour, this results in less heat loss in the melt and is much safer for crucible handling.

The furnace body is 16" in diameter by 24" high, cut from a water press. tank. Max aluminum capacity 30 lbs. in a steel crucible. Bronze or iron 20 lbs in a #8 clay graphite crucible, #10 will fit but I don't plan to cast much iron.

I built two types of burners. A Reil type atmospheric burner to melt aluminum and a Lionel Oliver type waste motor oil burner for high temp. metals or when my oil barrel is full.

Plan Of Action
(Part 1)
1. Build shell and shell attachments.
2. Build carriage and lifting mechanism.
3. Install refractories.
4. Build fan and burners.
5. Finished furnace pictures.

The finished melting furnace.

Early concept furnace sketch.