Democratic Sentinel, Volume 16, Number 44, Rensselaer, Jasper County, 18 November 1892 — Soldering Metal for Aluminum. [ARTICLE]

Soldering Metal for Aluminum.

This is the invention of Alexius Rader, of Christiania, Norway. It consists in combining cadmium, zinc, and tin mixed in substantially the following proportions, viz.: Cadmlum, fifty parts; zinc, twenty parts; tin, the remainder. The zinc is first melted in any suitable vessel, then the cadmium is added, and then the tin in pieces. The mass must be well heated, stirred, and then poured. This soldering metal can be used for a variety of different metals, but is especially adapted to aluminum. The proportions of the various ingredients may be varledjn accordance with the use to which the article is to be put. For instance, where a strong and tenacious soldering is required, a large proportion of cadmium can be used; where great adhesion is desired, a larger proportion of zinc would be used; and where a nice and durable polish is desired, a greater per cent of tin would be used. The alloy thus made, independent of its use as a solder for aluminum, is light in weight and capable of taking a high polish.