We do an awful lot of melting down of clients own gold (broken
chains, odd ear rings etc), and make up bangles, chains etc.
On the odd occasion when rolling out the ingot we repeatedly get
cracks apearing not just on the edges but on the surface.
Filing them out helps to remove them but sometimes even if we
remelt the ingot it still cracks after only a couple of passes
through the rolling mill.
You read about people saying never to remelt gold but we do a
lot of business with it.
Is it possible to remelt including with it some alloys or
anything, or is it best to refine it.
Does anyone know of a way of refining that can be carried out in
the workshop that is not too dangerous?