I have been casting quite a bit of bronze lately.
My experience is mostly with gold and silver but because of the
material costs I am looking for other metals that I can work
successfully. I have mixed results with the higher temperature
Currently I am casting:
I am also trying (if at all possible) to mix my own brass and
Torch melting is my first choice, Electromelt the second. I melt
with propane and oxygen. Regulating the torch flame is the most
important thing I could tell someone. All successful melting depends
on the right flame.
With any melting torch of any size you must determine how much
oxygen pressure to use. With a large torch I use 20 psi with a
smaller one it varies. This is also very hard to describe and not
demonstrate. This will be one of my future bench tube demos being
planned for this year.
In any event you must when finding the flame be able to open up the
oxygen on the torch until the knob is wide open. The flame is
regulated from the propane side. By cutting down on the propane, find
an oxidizing flame which is a reddish hissing flame. Add propane
until there is a bluish roar from the flame. You now have a neutral
flame every time you use the torch. Find this flame every time the
same way. Consistent flame use it critical to melting any metal.
I melt this way with every melt and have excellent results every
One suggestion at a time, so this is where I would start.