extr

ADDITIONAL IMAGES OF BISMUTH LOADING
AND LOW TEMPERATURE
DROSSING

 

 

 The heavy concentration of thick dross to the left,
a golden/brass central and the more vicious flow of
crystallizing metal to the right.

 

 

 

 The same mass, however transferred to a fused glass container
and tapped with a carbon rod lightly, to force the liquid metal to the right.  The very gray high dense concentrate on the left has less low melting collecting metal as the tapping forces the more fluid and less loaded metal to the right.

A 330g high temperature 1,800F fusion with flux button,

A low temperature re-melt, notice the film covering the surface of the flow, 
oxidation, yes, however the thin crust that develops can be scraped into a
pile of what looks like wrinkles

The re-melt shows the hard to melt residue remaining as the low melting point
collection metal flows from the shell. 

Once the collection metal flows from the residue a condition of
none rainbow coloring is not seen, as Ag .003% was added.

metal