Fusion

In order to recover the pure gold content in the jewelery used, they must be driven by their solid to liquid state, through their merger. With a system of the latest generation of IECO, we. Our system is capable of melting filings and cuttings in any quantity and in a very short time. This, thanks to the expertise of highly specialized and proven reliability.

In order to recover the pure gold content in the jewelery used, they must be driven by their solid to liquid state, through their merger.

For this process we use induction furnaces company "IECO" which allow us to recover scraps of jewelry, dental gold, industrial waste and coins of gold / silver. The crucibles used in the furnace are of graphite for its characteristics of high temperature resistance, and are also used small amounts of borax and saltpetre in order to assist the melting process.

The material to be melted is then placed inside the crucible with the addition of borax which serves to facilitate the dissolution of the pure metals and also creates a film that forms a protection for the molten metal from oxidation; saltpetre is added in last to make the merger more liquid. Reached the melting point, for gold is 1064 ° C, the crucible is removed from the oven to be able to pour the liquid contained inside special containers called brackets generally of cast iron or graphite. The bracket is heated to remove moisture and is lightly oiled with linseed oil to make it easier for the separation of metal from the container. In the operation of casting must pay particular attention to the speed with which you pour the liquid to prevent solidification in layers that would not make the rod thus obtained homogeneous and therefore distort the results of the analysis that will follow.

Upon completion of the merger, the rod is analyzed to know the quantity of precious metal content.