Soldering Gold-Filled using a barrier flux скачать в хорошем качестве

Soldering Gold-Filled using a barrier flux

One of the biggest issues we run into when soldering gold-filled material is creating a red-oxide fire-scale that cannot be removed through the normal pickling/cleaning process. Instead, the red layer must be sanded + polished away. This creates a new problem though as the thin layer of gold can be removed in this process, leaving behind the brass core which ultimately oxidizes. By using a simple solution of 50/50 boric acid + denatured alcohol as a barrier flux, we can prevent some of the fire-scale from occurring in the first place. Please be sure to create + follow a safety plan whenever you are soldering. This includes: wearing protective clothing + eyewear, working on a fire-proof surface + in an appropriate, low-risk area (not many flammable items nearby), + always have a fire extinguisher on hand. Materials used: 18 gauge round gold-filled wire, hard "yellow-silver" solder chips Tools used: Jumbo butane torch, butane, soldering block, charcoal blocks, utility tweezers, tungsten solder pick, yellow flux (this is the flow-flux), barrier flux (50/50 mix of boric acid + denatured alcohol), quenching vessel + water, pickle + pickle pot, copper tongs (for pickle pot).