Abstract: There is disclosed a process and apparatus for manufacturing flexible, shielded coaxial cable exhibiting improved magnetical screening capabilities wherein a tubular outer conductor is concentrically formed about an inner conductor with spacer means being disposed in the annulus between conductors. Accordingly, about the inner conductor including spacer means therefore, there is formed an inner component tube of a conductive material by the continuous forming in a lengthwise direction of a metal band into a tube having longitudinal edges welded together in a continuous, longitudinal welded joint. Concurrently, at least one further component tube is formed concentrically about the inner component tube by the lengthwise deformation of a second metal band of a ferromagnetic material into a second tube having opposed longitudinal edges which are also welded in a longitudinal direction in a continuous, longitudinal welded joint.

Abstract: A casting machine has a revolving drum, having groove looping around the periphery and being partially covered by a portion of an endless strip to establish therewith a mold cavity for continuous casting. The strip is made of a copper alloy with iron or chromium and/or zirconium added in small amounts to obtain a heat resistant, age hardening alloy. The strip ends have been butt welded by an electron beam and from both sides to obtain an oblique welding seam.