TPT March 2012

T echnology N ews Welding with reduced clearance

POLYSOUDE has unveiled its latest revolutionary carriage-type welding head, the Polycar 30 LP. This product was manufactured to satisfy high market demand following an increase in the number of more compact constructions and therefore reduced accessibility in terms of radial clearance around tubes to be welded. In reply to a call for tender for a customer specialised in uranium enrichment, the technical specifications stipulated the following features: excellent inert gas shielded arc welding; welding of aluminium using DC helium; extreme compactness of isometries; rapid assembly and dismantling (in less than one minute); user-friendliness (simplified handling and adjustment); reproduction of all movements of a manual welder and completion of the weld in a series of passes. It is possible to find many aluminium welding applications, in particular in the aeronautic and automotive industries,

The Polycar 30 LP

shipbuilding, nuclear power station construction, as well as in the chemical and food industries. Polysoude has thus designed a welding head capable of welding virtually all weldable materials (including aluminium) with reduced radial clearance of tubes ranging from 32 to 168mm in diameter. The carriage welding head is mounted on

a guide ring, which is specially adapted to the diameter of the tube to be welded. During the welding process, the welding head travels around the tube (the guide rings are mounted on the tube without the use of tools). Polysoude – France Website: www.polysoude.com

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M arch 2012