Re: [CAD_CAM_EDM_DRO] Re: melting aluminium

FYI....I recently got some info re some venturi type burners that don't
require forced air to operate and they put out enough heat for melting steel
a bit quicker than with the forced air units!

Will give that a try too one of these days.

How long does it take for your furnace to heat up to the point where the
iron will melt to a pourable temp?

Hope you'll visit the HomeFoundry egroup site and post some info about your
furnaces and their use. Your experience with home foundry work would be
appreciated.

Smoke

>with propane you
>must supply air for combustion.


>
>My 1st furnace was a charcoal one. I melted brass, bronze & alum. The

amount

>of ash and burning charcoal which went flying in the air made for a great
>light show but pissed off the wife and made for a fire hazard if the area

had

>dry grass.
>
>Since then I've built four furnaces and one cupola. My big one is made
>from a 55 gal drum and uses a Toro electric leaf blower and a 20 lbs tank

of

>propane for melting bronze, brass, and alum. When I melt cast iron I must
>use a 100lbs tank or the propane will freeze up.
>
>My small one is made from a 20 lbs out of date EMPTYpropane tank that I
>filled with water and cut up with a sawzall. I can melt cast iron in this

on

>with just a 20lbs tank.
>
>Lindsey Publications has several good books on building furnaces and an
>excellent one on casting titled "US NAVY FOUNDRY MANUAL".
>
>There are other newsgroup that cover casting and black smithing.
>
>
>Last but not least I've been casting parts for 14 years and have not set

the

>house on fire or killed myself by using common sense and following safety
>rules.
>

>