Delhi Scientific Instruments Company

Minimum order quantity: 100 Piece

SolderingPowder  .
 Most jewellery is composed of several components that are joined and assembled by soldering. In many countries, regulations govern the caratage of gold solders used to make jewellery and, with few exceptions, gold solder alloys should be of the same caratage as the jewellery. One problem with the production of solders is to ensure a good colour match with the jewellery being assembled.

Fortunately, it is possible to make a range of carat gold solders from 8 carats up to 22 carats in the full range of colours (including white) and these are commercially available in a variety of forms.

In engineering terms, carat gold solders for jewellery are hard solders or brazing alloys, as they melt above 450°C. A requirement of solders is that their melting temperature (the liquidus temperature) is at least 20°C below the solidus temperature of the carat golds being soldered. The parent metal does not melt during soldering.