You will need
- - gas burner,
- graphite crucible,
- - silver
- - copper,
- - boric acid,
- - borax,
- - base made of asbestos.
Usual tin soldering is not suitable for brass – it leaves a noticeable footprint, and very low strength. In brazing brass is to use another, more reliable method. In order to solder the brass parts, you'll need a gas torch and a graphite crucible, silver, copper, boric acid, borax and a base of asbestos.
Solder for brass manufacture of one part copper and two parts of silver, mixed up and dumping them together on a gas burner in a graphite crucible. The crucible is put in cold water and remove the melted and solidified solder. Flatten it and cut or grind the solder from the chips using a large file.
Twenty gram of powder of borax and twenty grams of boric acid manufacture flux, a mixture of Bay powder with 250 ml of water.
Brass parts, which you want to solder, put on an asbestos base and dampen flux from boric acid and borax. Then sprinkle with the connection of the parts with pieces of solder that you sharpened beforehand, and then begin to gently heat the connection with a gas burner.
Gradually bring the temperature up to seven degrees. Follow temperature burners – not to overheat the brass, not to spoil the details. If you solder a large and massive parts, warm them gradually; if the components are small and thin, remember that they heat up very quickly. This method of soldering is more difficult than normal soldering tin, but it has a high strength and coupling with brass details.