Abstract
Two electrolytic methods are described for the production of continuous or endless metal (Cu, Fe) tubing. In the first method metal is deposited on a short, slightly conical mandrel of chrome or silicon steel (to which the deposit does not adhere), and at regular time intervals the tube is moved slightly forward over the mandrel, thereby exposing a short, bare section of mandrel. During the next time interval a new deposit forms over this bare section and also over the deposit produced during the previous time interval. In the second method a low‐melting hollow mandrel (lead) is slowly passed through a plating cell.