Encyclopedia of Practical Receipts and Processes

How to silver a mirror, brew ginger beer, kill moths, make fireworks, tan a hide, bronze iron, cure a ham and clean a straw hat: William B. Dick's numbered encyclopedia answered the questions a nineteenth-century household actually had.

Home › Soldering And Welding › Hard Soldering or Brazing

Hard Soldering or Brazing

and the flame can be directed to any point,
and the flame can be directed to any point,

The alloy used in hard soldering is generally pure silver-not silver coin-6 parts brass, made of equal parts of copper and zinc; much and 2 parts zinc. Or, 2 parts silver, 1 part of the zinc, however, is lost in the process, so that the real proportion is not equal parts.

The alloy is heated over a charcoal fire, and broken to granulations in an iron mortar. A different proportion is used for soldering copper and iron, viz.: 3 zinc to 1 copper. The commercial name is "spelter solder."

Read next

← Solder for GoldFlux for Spelter Solder →