WCA September 2010

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Technologynews
Wire & Cable ASIA – September/October 2010 50
Metal tape forming and
welding technology
Following the demand of the industry for alternative
solutions, and based on experience of successful
projects in the field of metal tape forming, welding and
corrugation for high-end RF cables, Rosendahl has
entered this market segment.
Cable manufacturers require this technology for cables
for wind farms, offshore power stations or cables for
submarine applications. The LV segment also includes a
number of products (oil-pump, shipboard, signal cables),
which use the Rosendahl technology to improve product
properties or to increase productivity during the
manufacturing process.
Compared to other technologies (aluminium or lead
extrusion) the metal tape forming and welding system
has several advantages. It shows better results for
continuous operation, economic use of electric power
and water, reduced scrap during production, dimension
change and the possibility of using different metallic
materials for shielding.
Cables produced in this way are said to demonstrate
superior mechanical stability and water and/or gas
tightness. Technologies developed and optimised for
these applications include welding processes – to ensure
perfect weld seams with minimal heat affected zones
and best mechanical properties, and high speed
corrugators for helical and annular corrugation for
copper, aluminium and stainless steel.
For metal shielding by means of smooth or corrugated
aluminium, copper or stainless steel, Rosendahl offers
solutions for the tape forming, welding and tube
reduction process including adequate down stream
equipment.
Depending on the cable design, space availability and
product mix, Rosendahl is in the position to serve inline
(in combination with the jacketing process) and offline
solutions.
Rosendahl Maschinen GmbH – Austria
Fax: +43 3113 5100 59
Email:
Website:
Welding and corrugation equipment from Rosendahl m m