TPi July 2010

developments products &

Innovative solutions for plant construction

Hoesch Schwerter Profile GmbH develops products in close collaboration with individual branches and customers. Special profiles are employed in almost all sectors of the steel-processing industry. Steel-specific solutions are implemented that have to withstand severe loads, in particular in modern power stations or industrial facilities. Modern industrial processes have so many different requirements for tube materials that these often cannot be fulfilled by one single material. For instance, individual or combined operational demands may trigger different, even contrary requirements in terms of corrosion-, oxidation- or wear resistance of tube surfaces, as well as strength. Constructive problems of this kind may be solved by using compound tubes, which generally consist of two different materials as their outside or inside surface.

the twomaterials, HoeschSchwerter Profile uses a special procedure: the tubes are manufactured by extruding a pressed blank or pre-block made of two material components, combining them at the high pressure and the high temperature prevailing during extruding. It is possible, chiefly due to the implementation of a new technology for block manufacturing, to achieve an excellent metallurgical fusion. Application areas for such compound or composite tubes are cauldrons for regeneration of leach in the cellulose industry, cropping of control rods in nuclear technology, steam boiler pipes in incinerator plants, cooling pipes in furnaces for gravel roasting, pipes in exhaust heat cauldrons, and overheating pipes in fossil-fired steam cauldrons. The advantages of Hoesch Schwerter Profile’s manufacturing process include resistance against wear; multi-

Composite tubes from Hoesch Schwerter Profile

functionality (heat conductivity and corrosion resistance); possibility of further processing, such as bending; and the delivery of finned tubes that can be welded together.

Hoesch Schwerter Profile GmbH – Germany

info@hoesch-profile.com www.hoesch-profile.com

To manufacture compound tubes of this type with metallurgical fusion between

Orbital welding carriage increases production

The Gullco Pipe Kat ® automated pipe welding system with integrated wire feeder unit incorporates 40 IPM welding carriage design with quick action mounting for ease of installation. The carriage is equipped with a high-speed return feature for faster repositioning of the carriage. The Pipe Kat is also equipped with a linear oscillator with adjustable weave width and weld joint centre- line adjustment, and all-electronic

motorised functions incorporate jog settings. The system is supplied with a main control box with 7,620mm (25ft) umbilical, wire feed spool capacity of 4.5kg (10lb), with a maximum wire speed of 89-226cm/min (35-633 IPM) and a wire size range of 0.8 to 2mm. The welding torch uses standard consumables.

Gullco International Ltd – Canada

sales@gullco.com www.gullco.com

Gullco’s Pipe Kat orbital welding system

39

www.read-tpi.com

July 2010 Tube Products International