This view has more or less been completely turned upside down, says Dr. Wadhwa, who is co-editing a special issue of scientific papers on pregnancy and stress to be published in Health Psychology next year.
A wire feeder is used to supply solder. Both lead-tin and silver-tin material can be soldered. Process recipes will differ depending on the alloy composition. For soldering 44-pin chip carriers to a board using soldering preforms, power levels were on the order of 10 Watts and solder times approximately 1 second.
Soldering is essentially the fusion or joining together of two pieces of silver by the application of heat melting a solder. When heat is used to melt together two piecs of silver without solder then it is welding. 1  Annealing. - 2  Make sure the silver is properly annealed.